This 386 board I collected long time ago. The layout is standard AT. There has a Intel 385 Cache controller on this board.
But how much cache does this board populated?
My first PC (1997)
IBM 6x86mx PR200
BIOSTAR M5ATA
16MB SDRAM
Now upgraded to Cyrix MII 291.5MHz (maybe PR400)
The VC63C330J03A chips provide 16KB cache each, so you have 64KB of cache on this board.
Dorunkāku wrote on Yesterday, 14:07:The VC63C330J03A chips provide 16KB cache each, so you have 64KB of cache on this board.
Thank you so much!
My first PC (1997)
IBM 6x86mx PR200
BIOSTAR M5ATA
16MB SDRAM
Now upgraded to Cyrix MII 291.5MHz (maybe PR400)
Weird cache, SIPPs, early intel chipset, even KBC is ceramic Intel 😮, and seems rate. Not in thretroweb. Nice.
Does it have any markings on the back?
Does it work?
Can you dump bios?
https://github.com/raszpl/sigrok-disk FM/MFM/RLL decoder
https://github.com/raszpl/FIC-486-GAC-2-Cache-Module (AT&T Globalyst)
https://github.com/raszpl/386RC-16 ram board
https://github.com/raszpl/Zenith_ZBIOS Zenith Z-386 MFM-300 ZBIOS disassembly
rasz_pl wrote on Yesterday, 22:39:Weird cache, SIPPs, early intel chipset, even KBC is ceramic Intel :o, and seems rate. Not in thretroweb. Nice. […]
Weird cache, SIPPs, early intel chipset, even KBC is ceramic Intel 😮, and seems rate. Not in thretroweb. Nice.
Does it have any markings on the back?
Does it work?
Can you dump bios?
The board is broken, trace are damaged, it can't powerup. But in principle, it could be repaired and back to life. This board is designed and made in China, by Great Wall computer, in late 1980s or early 1990s. At that time I still remember F-16 from US are flying over Beijing sky above Great Wall.
My first PC (1997)
IBM 6x86mx PR200
BIOSTAR M5ATA
16MB SDRAM
Now upgraded to Cyrix MII 291.5MHz (maybe PR400)
385387386 wrote on Today, 14:41:This board is designed and made in China, by Great Wall computer
Now that is neat.
385387386 wrote on Today, 14:41:, in late 1980s or early 1990s.
Chips on mobo all have 91 datecodes. I read up a little and learned China had 82% tariffs on import of computers up to 1992 😮 https://escholarship.org/content/qt7x26b75s/qt7x26b75s.pdf
https://github.com/raszpl/sigrok-disk FM/MFM/RLL decoder
https://github.com/raszpl/FIC-486-GAC-2-Cache-Module (AT&T Globalyst)
https://github.com/raszpl/386RC-16 ram board
https://github.com/raszpl/Zenith_ZBIOS Zenith Z-386 MFM-300 ZBIOS disassembly