• Re: cpu cooler off-label use

    From bitrex@21:1/5 to jlarkin@highlandsniptechnology.com on Fri Mar 18 22:28:36 2022
    On 3/18/2022 10:23 PM, jlarkin@highlandsniptechnology.com wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.






    This is what the kids these days use to cool their gigantic GPUs, I
    think the mad-scientist green gives it a certain pizazz:

    <https://m.media-amazon.com/images/I/7154q7JKZVL._AC_SL1500_.jpg>

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Fri Mar 18 19:31:50 2022
    lørdag den 19. marts 2022 kl. 03.23.47 UTC+1 skrev jla...@highlandsniptechnology.com:
    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.


    if you look up the TPD for the CPU it is meant for you'd get an ideas of the likely performance

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to bitrex on Fri Mar 18 19:56:42 2022
    On Fri, 18 Mar 2022 22:28:36 -0400, bitrex <user@example.net> wrote:

    On 3/18/2022 10:23 PM, jlarkin@highlandsniptechnology.com wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.






    This is what the kids these days use to cool their gigantic GPUs, I
    think the mad-scientist green gives it a certain pizazz:

    <https://m.media-amazon.com/images/I/7154q7JKZVL._AC_SL1500_.jpg>

    Kool-aid kooler?



    --

    I yam what I yam - Popeye

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to langwadt@fonz.dk on Fri Mar 18 20:01:06 2022
    On Fri, 18 Mar 2022 19:31:50 -0700 (PDT), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 03.23.47 UTC+1 skrev jla...@highlandsniptechnology.com:
    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.


    if you look up the TPD for the CPU it is meant for you'd get an ideas of the likely performance


    We can let this get pretty hot. 80 or even 100c maybe? We're going to
    test one in a mockup chassis and measure the real theta. The CPU power
    rating doesn't tell us a lot about theta.





    --

    I yam what I yam - Popeye

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to All on Fri Mar 18 19:23:37 2022
    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.





    --

    I yam what I yam - Popeye

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Fri Mar 18 20:22:29 2022
    lørdag den 19. marts 2022 kl. 04.01.17 UTC+1 skrev jla...@highlandsniptechnology.com:
    On Fri, 18 Mar 2022 19:31:50 -0700 (PDT), Lasse Langwadt Christensen <lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 03.23.47 UTC+1 skrev jla...@highlandsniptechnology.com:
    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0 >>
    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.


    if you look up the TPD for the CPU it is meant for you'd get an ideas of the likely performance

    We can let this get pretty hot. 80 or even 100c maybe? We're going to
    test one in a mockup chassis and measure the real theta. The CPU power rating doesn't tell us a lot about theta.

    sure, but CPU spec something like 50W TPD and Tj 100'C is a start

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to jlarkin@highlandsniptechnology.com on Sat Mar 19 08:20:54 2022
    On a sunny day (Fri, 18 Mar 2022 19:23:37 -0700) it happened jlarkin@highlandsniptechnology.com wrote in <4afa3hlpivlfi9hq14dubtu9pstvpefk00@4ax.com>:


    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.

    Not sure about the air flow
    Is there space between the fan and the surface?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to All on Sat Mar 19 08:23:03 2022
    PS was reading this yesterday:
    https://www.tomshardware.com/news/modder-reduces-gddr6x-temps-with-copper-shim-cooling-mod

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Sat Mar 19 04:27:44 2022
    lørdag den 19. marts 2022 kl. 09.22.54 UTC+1 skrev Jan Panteltje:
    On a sunny day (Fri, 18 Mar 2022 19:23:37 -0700) it happened jla...@highlandsniptechnology.com wrote in
    <4afa3hlpivlfi9hq1...@4ax.com>:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's >easier.

    The little guy will be an LM35 temperature sensor.
    Not sure about the air flow
    Is there space between the fan and the surface?

    airflow goes in through the sides of the heatsink between the fins, up through the fan and out the back

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to Langwadt Christensen on Sat Mar 19 12:40:09 2022
    On a sunny day (Sat, 19 Mar 2022 04:27:44 -0700 (PDT)) it happened Lasse Langwadt Christensen <langwadt@fonz.dk> wrote in <c48b7b0c-3842-476c-bb6c-e3b0eb1467f0n@googlegroups.com>:

    l=C3=B8rdag den 19. marts 2022 kl. 09.22.54 UTC+1 skrev Jan Panteltje:
    On a sunny day (Fri, 18 Mar 2022 19:23:37 -0700) it happened
    jla...@highlandsniptechnology.com wrote in
    <4afa3hlpivlfi9hq1...@4ax.com>:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=3D0 >>

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.
    Not sure about the air flow
    Is there space between the fan and the surface?

    airflow goes in through the sides of the heatsink between the fins, up through >the fan and out the back

    Thanks, got it

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rickster@21:1/5 to lang...@fonz.dk on Sat Mar 19 07:07:50 2022
    On Saturday, March 19, 2022 at 7:27:48 AM UTC-4, lang...@fonz.dk wrote:
    lørdag den 19. marts 2022 kl. 09.22.54 UTC+1 skrev Jan Panteltje:
    On a sunny day (Fri, 18 Mar 2022 19:23:37 -0700) it happened jla...@highlandsniptechnology.com wrote in
    <4afa3hlpivlfi9hq1...@4ax.com>:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's >easier.

    The little guy will be an LM35 temperature sensor.
    Not sure about the air flow
    Is there space between the fan and the surface?
    airflow goes in through the sides of the heatsink between the fins, up through the fan and out the back

    I suppose these fans have low pressure. I know the axial fans are that way.

    --

    Rick C.

    - Get 1,000 miles of free Supercharging
    - Tesla referral code - https://ts.la/richard11209

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to langwadt@fonz.dk on Sat Mar 19 06:30:13 2022
    On Sat, 19 Mar 2022 04:27:44 -0700 (PDT), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 09.22.54 UTC+1 skrev Jan Panteltje:
    On a sunny day (Fri, 18 Mar 2022 19:23:37 -0700) it happened
    jla...@highlandsniptechnology.com wrote in
    <4afa3hlpivlfi9hq1...@4ax.com>:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0 >> >
    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.
    Not sure about the air flow
    Is there space between the fan and the surface?

    airflow goes in through the sides of the heatsink between the fins, up through the fan and out the back

    That particular cooler intakes on three sides and blows air out the
    fourth. That's ideal for my use; the hot air will blow over the
    Phoenix connector and out the back of the box.

    https://www.dropbox.com/s/8ubv5if7cbnsjzn/P940-8_front.jpg?raw=1

    Some coolers are designed to inhale their own hot air!



    --

    I yam what I yam - Popeye

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Larkin@21:1/5 to All on Sat Mar 19 09:41:36 2022
    On Fri, 18 Mar 2022 20:01:06 -0700, jlarkin@highlandsniptechnology.com
    wrote:

    On Fri, 18 Mar 2022 19:31:50 -0700 (PDT), Lasse Langwadt Christensen ><langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 03.23.47 UTC+1 skrev jla...@highlandsniptechnology.com:
    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0 >>>
    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.


    if you look up the TPD for the CPU it is meant for you'd get an ideas of the likely performance


    We can let this get pretty hot. 80 or even 100c maybe? We're going to
    test one in a mockup chassis and measure the real theta. The CPU power
    rating doesn't tell us a lot about theta.

    That cooler measured 0.24 K/W. The transistors are huge so the
    junctions won't get much above the heatsink temp.

    I should be able to dump 200 watts.

    --

    If a man will begin with certainties, he shall end with doubts,
    but if he will be content to begin with doubts he shall end in certainties. Francis Bacon

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Sat Mar 19 10:06:24 2022
    lørdag den 19. marts 2022 kl. 17.41.48 UTC+1 skrev John Larkin:
    On Fri, 18 Mar 2022 20:01:06 -0700, jla...@highlandsniptechnology.com
    wrote:
    On Fri, 18 Mar 2022 19:31:50 -0700 (PDT), Lasse Langwadt Christensen ><lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 03.23.47 UTC+1 skrev jla...@highlandsniptechnology.com:
    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.


    if you look up the TPD for the CPU it is meant for you'd get an ideas of the likely performance


    We can let this get pretty hot. 80 or even 100c maybe? We're going to
    test one in a mockup chassis and measure the real theta. The CPU power >rating doesn't tell us a lot about theta.
    That cooler measured 0.24 K/W. The transistors are huge so the
    junctions won't get much above the heatsink temp.

    the datasheet for the transistor says typ. 0.24C/W case to sink
    plus max 0.28C/W junction to case

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Sat Mar 19 10:35:10 2022
    lørdag den 19. marts 2022 kl. 18.19.27 UTC+1 skrev legg:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    the tabs are facing the cooling surface

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Larkin@21:1/5 to langwadt@fonz.dk on Sat Mar 19 10:53:15 2022
    On Sat, 19 Mar 2022 10:06:24 -0700 (PDT), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 17.41.48 UTC+1 skrev John Larkin:
    On Fri, 18 Mar 2022 20:01:06 -0700, jla...@highlandsniptechnology.com
    wrote:
    On Fri, 18 Mar 2022 19:31:50 -0700 (PDT), Lasse Langwadt Christensen
    <lang...@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 03.23.47 UTC+1 skrev jla...@highlandsniptechnology.com:
    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.


    if you look up the TPD for the CPU it is meant for you'd get an ideas of the likely performance


    We can let this get pretty hot. 80 or even 100c maybe? We're going to
    test one in a mockup chassis and measure the real theta. The CPU power
    rating doesn't tell us a lot about theta.
    That cooler measured 0.24 K/W. The transistors are huge so the
    junctions won't get much above the heatsink temp.

    the datasheet for the transistor says typ. 0.24C/W case to sink
    plus max 0.28C/W junction to case

    I'll be running two in parallel some times, all four some times. And
    Tj max is 150C. Might work.

    We'll run a realtime Tj simulation and shut down at computed 150C.



    --

    If a man will begin with certainties, he shall end with doubts,
    but if he will be content to begin with doubts he shall end in certainties. Francis Bacon

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From legg@21:1/5 to All on Sat Mar 19 13:19:50 2022
    On Fri, 18 Mar 2022 19:23:37 -0700, jlarkin@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    RL

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rickster@21:1/5 to lang...@fonz.dk on Sat Mar 19 11:18:55 2022
    On Saturday, March 19, 2022 at 1:06:29 PM UTC-4, lang...@fonz.dk wrote:
    lørdag den 19. marts 2022 kl. 17.41.48 UTC+1 skrev John Larkin:
    On Fri, 18 Mar 2022 20:01:06 -0700, jla...@highlandsniptechnology.com wrote:
    On Fri, 18 Mar 2022 19:31:50 -0700 (PDT), Lasse Langwadt Christensen ><lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 03.23.47 UTC+1 skrev jla...@highlandsniptechnology.com:
    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's >>> easier.

    The little guy will be an LM35 temperature sensor.


    if you look up the TPD for the CPU it is meant for you'd get an ideas of the likely performance


    We can let this get pretty hot. 80 or even 100c maybe? We're going to >test one in a mockup chassis and measure the real theta. The CPU power >rating doesn't tell us a lot about theta.
    That cooler measured 0.24 K/W. The transistors are huge so the
    junctions won't get much above the heatsink temp.
    the datasheet for the transistor says typ. 0.24C/W case to sink
    plus max 0.28C/W junction to case

    I'm sure it will be fine. It's not like he has to worry about the solder melting or anything. It's held together with screws.

    What temperatures do CPU/GPU owners report when using similar cooling? I would not expect this one to be among the best. The fins are very short and the airflow is rather restricted. 200W is a lot even for a full blast CPU with overvoltage.

    --

    Rick C.

    +- Get 1,000 miles of free Supercharging
    + Tesla referral code - https://ts.la/richard11209

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Sat Mar 19 11:38:14 2022
    lørdag den 19. marts 2022 kl. 19.23.00 UTC+1 skrev Rickster:
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.
    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally the
    fans blow into heat sinks, but in this case there's no room for that.

    it's rated for 125W TPD and CPU are usually 100'C max Tj

    0.29 C/W with the fan at max speed

    https://www.dynatron.co/product-page/k199

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rickster@21:1/5 to legg on Sat Mar 19 11:22:56 2022
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally the
    fans blow into heat sinks, but in this case there's no room for that.

    If this dissipates 200W per board and the chassis has say, 10 boards, that's going to be a metric shit ton of heat to get out of the case, and even the room. A space heater is around 1.5 kW. Put your hand in front of that!

    --

    Rick C.

    -- Get 1,000 miles of free Supercharging
    -- Tesla referral code - https://ts.la/richard11209

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From legg@21:1/5 to langwadt@fonz.dk on Sat Mar 19 15:09:50 2022
    On Sat, 19 Mar 2022 10:35:10 -0700 (PDT), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 18.19.27 UTC+1 skrev legg:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0 >>
    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    the tabs are facing the cooling surface

    The cooling surface is attached to the fan fins. The tabs should face
    the cooling surface - not as illustrated in mock4.

    RL

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From legg@21:1/5 to langwadt@fonz.dk on Sat Mar 19 15:04:45 2022
    On Sat, 19 Mar 2022 10:35:10 -0700 (PDT), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 18.19.27 UTC+1 skrev legg:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0 >>
    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    the tabs are facing the cooling surface

    So the fan is just moving air around platic bodies and board surface?

    RL

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From three_jeeps@21:1/5 to jla...@highlandsniptechnology.com on Sat Mar 19 12:41:57 2022
    On Saturday, March 19, 2022 at 9:30:23 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Sat, 19 Mar 2022 04:27:44 -0700 (PDT), Lasse Langwadt Christensen <lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 09.22.54 UTC+1 skrev Jan Panteltje:
    On a sunny day (Fri, 18 Mar 2022 19:23:37 -0700) it happened
    jla...@highlandsniptechnology.com wrote in
    <4afa3hlpivlfi9hq1...@4ax.com>:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.
    Not sure about the air flow
    Is there space between the fan and the surface?

    airflow goes in through the sides of the heatsink between the fins, up through the fan and out the back
    That particular cooler intakes on three sides and blows air out the
    fourth. That's ideal for my use; the hot air will blow over the
    Phoenix connector and out the back of the box.

    https://www.dropbox.com/s/8ubv5if7cbnsjzn/P940-8_front.jpg?raw=1

    Some coolers are designed to inhale their own hot air!
    --

    I yam what I yam - Popeye

    Nice idea, but am curious: Tradeoffs are to move more air over limited surface area or increase the surface area and move less air. Looks like the heat sink is flat, limited area surface. Limited time buffer from fan failure to destruction of the
    semiconductors - What is doing the over temp control - CPU or dedicated temp monitor/controller?
    J

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Sat Mar 19 12:26:45 2022
    lørdag den 19. marts 2022 kl. 20.04.20 UTC+1 skrev legg:
    On Sat, 19 Mar 2022 10:35:10 -0700 (PDT), Lasse Langwadt Christensen <lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 18.19.27 UTC+1 skrev legg:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    the tabs are facing the cooling surface

    So the fan is just moving air around platic bodies and board surface?

    no

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Sat Mar 19 12:23:36 2022
    lørdag den 19. marts 2022 kl. 20.09.24 UTC+1 skrev legg:
    On Sat, 19 Mar 2022 10:35:10 -0700 (PDT), Lasse Langwadt Christensen <lang...@fonz.dk> wrote:
    lørdag den 19. marts 2022 kl. 18.19.27 UTC+1 skrev legg:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    the tabs are facing the cooling surface

    The cooling surface is attached to the fan fins. The tabs should face
    the cooling surface - not as illustrated in mock4.

    the tabs are facing the cooling surface, mock4 is a bottom view,
    shows the transistors mounted through a hole in the PCB

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From whit3rd@21:1/5 to jla...@highlandsniptechnology.com on Sat Mar 19 12:32:21 2022
    On Saturday, March 19, 2022 at 6:30:23 AM UTC-7, jla...@highlandsniptechnology.com wrote:

    That particular cooler intakes on three sides and blows air out the
    fourth. That's ideal for my use; the hot air will blow over the
    Phoenix connector and out the back of the box.

    It's not completely ideal; the airflow favors cooling the side opposite the outlet. A ribbed plate with air flowing parallel to the ribs would ensure some heatflow uniformity regardless of lateral conduction in the plate.

    For serious cooling, your fan can be one-per-box, and air channeled not by objects clamped to the printed wiring board, but by vanes riveted to the box. The tiny internal fan, even though it may be effective, is not as easy to inspect
    or replace as a muffin fan mounted to the box/chassis. Moving parts, substantial failure possibilities...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to jjhudak@gmail.com on Sat Mar 19 13:38:20 2022
    On Sat, 19 Mar 2022 12:41:57 -0700 (PDT), three_jeeps
    <jjhudak@gmail.com> wrote:

    On Saturday, March 19, 2022 at 9:30:23 AM UTC-4, jla...@highlandsniptechnology.com wrote:
    On Sat, 19 Mar 2022 04:27:44 -0700 (PDT), Lasse Langwadt Christensen
    <lang...@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 09.22.54 UTC+1 skrev Jan Panteltje:
    On a sunny day (Fri, 18 Mar 2022 19:23:37 -0700) it happened
    jla...@highlandsniptechnology.com wrote in
    <4afa3hlpivlfi9hq1...@4ax.com>:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.
    Not sure about the air flow
    Is there space between the fan and the surface?

    airflow goes in through the sides of the heatsink between the fins, up through the fan and out the back
    That particular cooler intakes on three sides and blows air out the
    fourth. That's ideal for my use; the hot air will blow over the
    Phoenix connector and out the back of the box.

    https://www.dropbox.com/s/8ubv5if7cbnsjzn/P940-8_front.jpg?raw=1

    Some coolers are designed to inhale their own hot air!
    --

    I yam what I yam - Popeye

    Nice idea, but am curious: Tradeoffs are to move more air over limited surface area or increase the surface area and move less air. Looks like the heat sink is flat, limited area surface.

    Thermal theories are nice, but I believe experiments.

    Limited time buffer from fan failure to destruction of the semiconductors - What is doing the over temp control - CPU or dedicated temp monitor/controller?
    J

    The little thing is an LM35 temp sensor. That gives us heat sink
    temperature. We'll know the fet voltages and currents, so that gives
    us power.

    We'll run a realtime junction temperature simulation and shut down at
    some Tj, probably 150C. The sim will run in an FPGA.



    --

    I yam what I yam - Popeye

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to langwadt@fonz.dk on Sat Mar 19 13:41:18 2022
    On Sat, 19 Mar 2022 12:23:36 -0700 (PDT), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 20.09.24 UTC+1 skrev legg:
    On Sat, 19 Mar 2022 10:35:10 -0700 (PDT), Lasse Langwadt Christensen
    <lang...@fonz.dk> wrote:
    lřrdag den 19. marts 2022 kl. 18.19.27 UTC+1 skrev legg:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    the tabs are facing the cooling surface

    The cooling surface is attached to the fan fins. The tabs should face
    the cooling surface - not as illustrated in mock4.

    the tabs are facing the cooling surface, mock4 is a bottom view,
    shows the transistors mounted through a hole in the PCB


    I cut that on our classic Bridgeport milling machine. Just ignore the
    obvious goof.





    --

    I yam what I yam - Popeye

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Sat Mar 19 13:46:59 2022
    lørdag den 19. marts 2022 kl. 21.41.31 UTC+1 skrev jla...@highlandsniptechnology.com:
    On Sat, 19 Mar 2022 12:23:36 -0700 (PDT), Lasse Langwadt Christensen <lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 20.09.24 UTC+1 skrev legg:
    On Sat, 19 Mar 2022 10:35:10 -0700 (PDT), Lasse Langwadt Christensen
    <lang...@fonz.dk> wrote:
    lørdag den 19. marts 2022 kl. 18.19.27 UTC+1 skrev legg:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com >> >> wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    the tabs are facing the cooling surface

    The cooling surface is attached to the fan fins. The tabs should face
    the cooling surface - not as illustrated in mock4.

    the tabs are facing the cooling surface, mock4 is a bottom view,
    shows the transistors mounted through a hole in the PCB

    I cut that on our classic Bridgeport milling machine. Just ignore the obvious goof.

    murphys law also apply to the handles moving the table on milling machine ;)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to langwadt@fonz.dk on Sat Mar 19 13:58:22 2022
    On Sat, 19 Mar 2022 11:38:14 -0700 (PDT), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 19.23.00 UTC+1 skrev Rickster:
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0 >> >
    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.
    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally the
    fans blow into heat sinks, but in this case there's no room for that.

    it's rated for 125W TPD and CPU are usually 100'C max Tj

    0.29 C/W with the fan at max speed

    https://www.dynatron.co/product-page/k199



    I measured 0.24, which is pretty good in the thermal business.

    The hot air will blow right out the back of the box. The main box fans
    might help a little too.

    I might have a lot of topside copper under the heat sink, with many
    thermal vias to, well, somewhere. That would help a bit too, maybe
    5-10%, use some PCB surface area in the air flow.

    There are hunkier coolers around, but I don't have height for them.



    --

    I yam what I yam - Popeye

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Sat Mar 19 14:42:13 2022
    lørdag den 19. marts 2022 kl. 21.58.36 UTC+1 skrev jla...@highlandsniptechnology.com:
    On Sat, 19 Mar 2022 11:38:14 -0700 (PDT), Lasse Langwadt Christensen <lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 19.23.00 UTC+1 skrev Rickster:
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com >> > wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.
    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally
    the fans blow into heat sinks, but in this case there's no room for that.

    it's rated for 125W TPD and CPU are usually 100'C max Tj

    0.29 C/W with the fan at max speed

    https://www.dynatron.co/product-page/k199


    I measured 0.24, which is pretty good in the thermal business.

    The hot air will blow right out the back of the box. The main box fans
    might help a little too.

    I might have a lot of topside copper under the heat sink, with many
    thermal vias to, well, somewhere. That would help a bit too, maybe
    5-10%, use some PCB surface area in the air flow.

    There are hunkier coolers around, but I don't have height for them.

    you could also skip the hole and put the transistors with the tap side
    up on the top of the pcb, so the whole sandwich is: heatsink, transistors,pcb and on the back of the pcb a plate with the threads for the screws

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Larkin@21:1/5 to legg on Mon Mar 21 11:41:27 2022
    On Sat, 19 Mar 2022 13:19:50 -0400, legg <legg@nospam.magma.ca> wrote:

    On Fri, 18 Mar 2022 19:23:37 -0700, jlarkin@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.

    RL

    The fets will have AlN insulators between their drain tabs and the
    copper heat sink. All electrical connections will be through the pins,
    sorta surface mounted.

    We'll tap a hole in the center of the copper pedistal. A giant fender
    washer with some compliant stuff will squash the fets down, with the
    center screw applying the force.

    I guess I shouldn't have any vias under that copper thing.

    --

    If a man will begin with certainties, he shall end with doubts,
    but if he will be content to begin with doubts he shall end in certainties. Francis Bacon

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Larkin@21:1/5 to langwadt@fonz.dk on Mon Mar 21 12:13:20 2022
    On Sat, 19 Mar 2022 14:42:13 -0700 (PDT), Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 21.58.36 UTC+1 skrev jla...@highlandsniptechnology.com:
    On Sat, 19 Mar 2022 11:38:14 -0700 (PDT), Lasse Langwadt Christensen
    <lang...@fonz.dk> wrote:

    lřrdag den 19. marts 2022 kl. 19.23.00 UTC+1 skrev Rickster:
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com >> >> > wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.
    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally
    the fans blow into heat sinks, but in this case there's no room for that.

    it's rated for 125W TPD and CPU are usually 100'C max Tj

    0.29 C/W with the fan at max speed

    https://www.dynatron.co/product-page/k199


    I measured 0.24, which is pretty good in the thermal business.

    The hot air will blow right out the back of the box. The main box fans
    might help a little too.

    I might have a lot of topside copper under the heat sink, with many
    thermal vias to, well, somewhere. That would help a bit too, maybe
    5-10%, use some PCB surface area in the air flow.

    There are hunkier coolers around, but I don't have height for them.

    you could also skip the hole and put the transistors with the tap side
    up on the top of the pcb, so the whole sandwich is: heatsink, transistors,pcb >and on the back of the pcb a plate with the threads for the screws


    That might be hard to assemble.

    We'll make a 3D printed plastic fixture to align the four fets, with
    their insulators, before we solder them down and then scrunch down the
    clamp thing.

    That's only moderately hard to assemble.

    --

    If a man will begin with certainties, he shall end with doubts,
    but if he will be content to begin with doubts he shall end in certainties. Francis Bacon

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Mon Mar 21 13:33:39 2022
    mandag den 21. marts 2022 kl. 20.13.32 UTC+1 skrev John Larkin:
    On Sat, 19 Mar 2022 14:42:13 -0700 (PDT), Lasse Langwadt Christensen <lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 21.58.36 UTC+1 skrev jla...@highlandsniptechnology.com:
    On Sat, 19 Mar 2022 11:38:14 -0700 (PDT), Lasse Langwadt Christensen
    <lang...@fonz.dk> wrote:

    lørdag den 19. marts 2022 kl. 19.23.00 UTC+1 skrev Rickster:
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to >> >> > face the cooling surface.
    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally
    the fans blow into heat sinks, but in this case there's no room for that.

    it's rated for 125W TPD and CPU are usually 100'C max Tj

    0.29 C/W with the fan at max speed

    https://www.dynatron.co/product-page/k199


    I measured 0.24, which is pretty good in the thermal business.

    The hot air will blow right out the back of the box. The main box fans
    might help a little too.

    I might have a lot of topside copper under the heat sink, with many
    thermal vias to, well, somewhere. That would help a bit too, maybe
    5-10%, use some PCB surface area in the air flow.

    There are hunkier coolers around, but I don't have height for them.

    you could also skip the hole and put the transistors with the tap side
    up on the top of the pcb, so the whole sandwich is: heatsink, transistors,pcb
    and on the back of the pcb a plate with the threads for the screws

    That might be hard to assemble.

    We'll make a 3D printed plastic fixture to align the four fets, with
    their insulators, before we solder them down and then scrunch down the
    clamp thing.

    That's only moderately hard to assemble.

    if you mount the transistor on top with the tap facing up, you just put something like this
    https://www.amazon.com/uxcell-Heatsink-Cooling-Backplate-Motherboard/dp/B00GN7Z20W
    on the back of the board, put on the heatsink and tighten the four screws

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cydrome Leader@21:1/5 to Lasse Langwadt Christensen on Wed Mar 23 21:02:57 2022
    Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:
    l??rdag den 19. marts 2022 kl. 09.22.54 UTC+1 skrev Jan Panteltje:
    On a sunny day (Fri, 18 Mar 2022 19:23:37 -0700) it happened
    jla...@highlandsniptechnology.com wrote in
    <4afa3hlpivlfi9hq1...@4ax.com>:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0 >> >
    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.
    Not sure about the air flow
    Is there space between the fan and the surface?

    airflow goes in through the sides of the heatsink between the fins, up through the fan and out the back

    It's the perfect design to make a crappy fan die faster than usual.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cydrome Leader@21:1/5 to Lasse Langwadt Christensen on Wed Mar 23 21:08:00 2022
    Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:
    l??rdag den 19. marts 2022 kl. 19.23.00 UTC+1 skrev Rickster:
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com
    wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0 >> >
    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.
    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally the
    fans blow into heat sinks, but in this case there's no room for that.

    it's rated for 125W TPD and CPU are usually 100'C max Tj

    0.29 C/W with the fan at max speed

    https://www.dynatron.co/product-page/k199

    Those are some pretty optimistic numbers for a new fan, with a clean
    heatsink, in an infinitely cooled room at 25C.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt Christensen@21:1/5 to All on Wed Mar 23 14:53:30 2022
    onsdag den 23. marts 2022 kl. 22.08.07 UTC+1 skrev Cydrome Leader:
    Lasse Langwadt Christensen <lang...@fonz.dk> wrote:
    l??rdag den 19. marts 2022 kl. 19.23.00 UTC+1 skrev Rickster:
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com >> > wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.
    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally
    the fans blow into heat sinks, but in this case there's no room for that.

    it's rated for 125W TPD and CPU are usually 100'C max Tj

    0.29 C/W with the fan at max speed

    https://www.dynatron.co/product-page/k199
    Those are some pretty optimistic numbers for a new fan, with a clean heatsink, in an infinitely cooled room at 25C.

    really? that's must why the spec sheet say @ 35'C ambient ...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Cydrome Leader@21:1/5 to Lasse Langwadt Christensen on Mon Mar 28 16:36:58 2022
    Lasse Langwadt Christensen <langwadt@fonz.dk> wrote:
    onsdag den 23. marts 2022 kl. 22.08.07 UTC+1 skrev Cydrome Leader:
    Lasse Langwadt Christensen <lang...@fonz.dk> wrote:
    l??rdag den 19. marts 2022 kl. 19.23.00 UTC+1 skrev Rickster:
    On Saturday, March 19, 2022 at 1:19:27 PM UTC-4, legg wrote:
    On Fri, 18 Mar 2022 19:23:37 -0700, jla...@highlandsniptechnology.com >> >> > wrote:

    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    Use the center legs to conduct, but rotate bodies to allow tabs to
    face the cooling surface.
    The transistors are on the bottom of the board, not sandwiched between the heat sink and the fan. The fins are very, very short on the top side of the heat sink, just under the fan which is moving air through the heat sink with a vacuum. Normally
    the fans blow into heat sinks, but in this case there's no room for that.

    it's rated for 125W TPD and CPU are usually 100'C max Tj

    0.29 C/W with the fan at max speed

    https://www.dynatron.co/product-page/k199
    Those are some pretty optimistic numbers for a new fan, with a clean
    heatsink, in an infinitely cooled room at 25C.

    really? that's must why the spec sheet say @ 35'C ambient ...

    Good luck with that thing either way, even at 35.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to All on Mon Apr 11 18:21:11 2022
    On Fri, 18 Mar 2022 19:23:37 -0700, jlarkin@highlandsniptechnology.com
    wrote:


    https://www.dropbox.com/sh/xq91kwztbqfwn72/AACBtWvHaB1JBDfkTsF4wGmCa?dl=0

    This might not be as good as a gigantic machined heat sink, but it's
    easier.

    The little guy will be an LM35 temperature sensor.

    Here's the bottom of the cooler. The metal washer scrunches a neoprene
    washer onto the fets to push them against the copper heat sink.

    https://www.dropbox.com/s/bz6ueadispq6ril/CPU_Cooler_Washers.jpg?raw=1

    There is, technically, 1800 watts of mosfet under there.

    I ordered a custom AlN insulator to complete the stack.



    --

    I yam what I yam - Popeye

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)