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EISA VGA cards?

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First post, by snorg

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Do any of these beasts exist? If so, you figure a Tseng-based EISA vga would be fast enough to handle Diablo?

Way back I inherited 2 old Acer multiprocessor 486 servers with like 4 o 6 DX2-50 cpus and 128MB of SRAM (not DRAM).

I think one had 2 processor cards and the other had one, I ended up selling it and keeping one with the single dual-proc card and 1 memory board (32 or 64mb of SRAM, can't recall)
I still have the cabinet with backplane but I have absolutely no damn clue where the processor and memory board went to, I'd be kind of interested to see if I could swap out the DX2-50 cpus for DX4-100 CPUs as they would be able to use the same bus speed.

It used EISA cards (no VL bus or PCI) so I figure with the extra bandwidth, something like a Tseng card would maybe have been able to run Diablo if the CPUs had also been upgraded.

Reply 1 of 10, by NJRoadfan

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There are no Tseng based EISA cards, the card you have is for a proprietary local bus. DO NOT INSERT THAT CARD INTO AN EISA MOTHERBOARD!

Reply 2 of 10, by snorg

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It's sort of a moot point, the system no longer exists in a functional state (well it would probably work if I could find the processor and memory cards).
It had 3 buses: proprietary bus slots for memory cards and processor cards, regular ISA slots and also a few EISA slots. I can take a picture of the thing if you don't believe me, but it is in storage back at my parents place so I won't be there for a week or two.

Reply 4 of 10, by NJRoadfan

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The Tseng card is for the proprietary Opti-Local Bus, not EISA. The Compaq QVGA is a true EISA card however.

Reply 5 of 10, by snorg

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Never heard of Opti-local, what is that?

Reply 6 of 10, by soviet conscript

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snorg wrote:

Never heard of Opti-local, what is that?

its pretty much just like VLB but its a different slot. the slot for Opti-local looks pretty much just like EISA. it was before VLB became the standard form of local bus so other companies were making there own types, as far as I've been told the performance of Opti local bus is exactly the same as VLB. There were supposedly a few other proprietary forms of local bus but Opti was the best known.

Reply 10 of 10, by vlask

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Joey_sw wrote:
snorg wrote:

http://www.ebay.com/itm/COMPAQ-QVGA-EISA-MWW- … =item4aba6a8f4f

what are those on opposite side of the E-ISA plug, are used for?

Video decoder cards. Something like this - http://vgamuseum.info/images/vlask/avance/alg … wgfcreative.jpg

As for EISA cards - go here - http://vgamuseum.info/index.php/image-search , select in second box EISA and click on search. Some might be that Opti local bus versions - never heard about it before. Its hard for me spot difference, because they look the same.

Not only mine graphics cards collection at http://www.vgamuseum.info

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