Missing chip on 486 board with 82C495SX chipset \ VOGONS

Missing chip on 486 board with 82C495SX chipset

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First post, by Mandrew

Posted on 2025-12-18, 08:30

Mandrew Offline

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Rank: Member
Posts: 240
Joined: 2019-11-23, 14:16

Hey guys, what was in the socket next to the CPU? Is it an unobtanium PAL chip or something replaceable?
The board apparently posts but it wasn't tested. (pictures are not mine, can't get better ones)

Reply 1 of 2, by zyga64

Posted on 2025-12-18, 08:49

zyga64 Offline

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Rank: Oldbie
Posts: 730
Joined: 2014-03-12, 14:38

According to this manual: https://theretroweb.com/motherboard/manual/un … b0840499815.pdf
U43 is PAL needed for supporting both master and slave modes of VL-Bus device.

BTW. Your motherboard is probably newer 2.2 version of Shuttle HOT-409, and above manual is for older ver. 1.x but it looks pretty similiar, so I assume that the explanation will apply here.

8088@8 /640k /Genoa CGA /ALS100
286@20 /4M /CL-GD5422 /CMI8330
486DX33 /16M /TGUI9440 /GUS+ALS100+MT32PI
K6-2@400 /64M /MGA-2064W+3dfx /YMF718
P!!!750 /256M /MX440 /Vibra16s+SBLive!

Reply 2 of 2, by Mandrew

Posted on 2025-12-18, 10:49

Mandrew Offline

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Rank: Member
Posts: 240
Joined: 2019-11-23, 14:16

Thank you!

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