Were two PCB layouts? Earlier one had a jumper "JU8 CLK" near the center
osc. The later card does not have this osc and no JU8.
On 30.01.2022 15:50, Louis Ohland wrote:
Were two PCB layouts? Earlier one had a jumper "JU8 CLK" near the
center osc. The later card does not have this osc and no JU8.
Hmm, the box shows even an earlier version with through-hole PALs and
what not:
http://www.vgamuseum.info/images/pirx/ati/010_ati_03g_8514ultra.jpg
A pre-production sample? No clue...
On 30.01.2022 15:50, Louis Ohland wrote:
Were two PCB layouts? Earlier one had a jumper "JU8 CLK" near the
center osc. The later card does not have this osc and no JU8.
Hmm, the box shows even an earlier version with through-hole PALs and
what not:
http://www.vgamuseum.info/images/pirx/ati/010_ati_03g_8514ultra.jpg
A pre-production sample? No clue...
Note the blue ZIPP sockets, U10,12,14,16
The video controller is fabbed by Toshiba.
On 1/31/2022 15:10, Tomas Slavotinek wrote:
On 30.01.2022 15:50, Louis Ohland wrote:
Were two PCB layouts? Earlier one had a jumper "JU8 CLK" near the
center osc. The later card does not have this osc and no JU8.
Hmm, the box shows even an earlier version with through-hole PALs and
what not:
http://www.vgamuseum.info/images/pirx/ati/010_ati_03g_8514ultra.jpg
A pre-production sample? No clue...
On 31.01.2022 22:22, Louis Ohland wrote:
Note the blue ZIPP sockets, U10,12,14,16
The video controller is fabbed by Toshiba.
On 1/31/2022 15:10, Tomas Slavotinek wrote:
On 30.01.2022 15:50, Louis Ohland wrote:
Were two PCB layouts? Earlier one had a jumper "JU8 CLK" near the
center osc. The later card does not have this osc and no JU8.
Hmm, the box shows even an earlier version with through-hole PALs and
what not:
http://www.vgamuseum.info/images/pirx/ati/010_ati_03g_8514ultra.jpg
A pre-production sample? No clue...
Probably a gate array.
One half of the memory is socketed even on the later boards it seems.
(this explains the memory size jumper)
Actually, the "9151" board seems to have all DRAMs soldered in. Yet the jumper header is still populated. Hmm...
You could get 512K with 4 sockets, or a 1MB with all positions filled
with soldered ZIPPs.
The Model 90 could come 8 sockets, 4/4, and 8 soldered.
ATI chose to interleave socket/soldered...
On 1/31/2022 16:04, Tomas Slavotinek wrote:
Actually, the "9151" board seems to have all DRAMs soldered in. Yet
the jumper header is still populated. Hmm...
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