Video Card Identification Needed!

May 25, 2011 at 10:45:20
Specs: DOS 6.20/win3.1, Pentium 200 Mhz/64 MB RAM
I took this old Video Card out of a comp that died (BIOS conked.) and need identification.
2 of the chips say "Cirrus Logic" on them so i searched them no luck.
The biggest chip has a number of "CL-GD5424-80QC-C *NEXT LINE ON CHIP* 20446-276CM-P *NEXT LINE* 9326 T"
The second chip says "CL-GD5904-20DC-AA" With 1992 on it. It then has 4 chips with "RM *next line* 21256-8-70 *next line* 9404" in small cradles that you can remove the chips from. 2 of the RM chips have 1 or more broken pins so i might need replacements. (good luck to me.) It's got a weird connector thats a combonation of the big black card slots (forgot what it's called) on the part closest to the plug and a PCI plug closest to the CPU. I don't have a computer with that style of plug yet but i'm gonna make the rounds of the flea markets and 2nd hand stores in the area. Think that the RM chips are 256 kb memory each so it was a 1mb video card. All suggestions help!

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#1
May 25, 2011 at 11:04:18
This is a very old video card designed to fit into a VESA Local Bus slot. The VESA Local bus was a predecessor to PCI and was in use when 16 bit ISA slots where leading edge technology.

The chances of finding a motherboard with a VESA Local Bus outside of a museum range from slim to no chance.

http://www.recycledgoods.com/produc...

Stuart


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#2
May 25, 2011 at 13:31:40
BIOS died? In a computer that old the CMOS battery is probably dead.

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#3
May 25, 2011 at 22:59:54
If the chips are the 14- or 16-pin DIP type then they're probably 4 bit 256 K chips. It takes two of those to make one 8 bit 256 K which is the way the ram is counted. So if it has 4 of those chips then you've got 512 K of video ram.

If it's the larger chips that have something like 24 or 26 contacts (not exactly pins--it's a different socket type) then they're probably 512 K so 4 of those are 2 meg. I imagine you have the smaller ones as very few of the older ISA/VLB had that much ram capability.

Ding dong the witch is dead. . . .


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#4
May 26, 2011 at 09:03:24
the big RM chips got 26 pins. Not contacts, but pins. like i said before, 2 of them have broken pins so i might need replacements (LOL). The old computer was actually my dad's old work computer. He needed the huge vid card for a CAD drawing program. to "wizard-fred", the BIOS died. Replaced the battery, rebooted it and the screen says: "#@%HG&*%V@C@%B&^^@V %PARITYERR3G&^VCF%#FCGHDD$^TYNUB$FE%CV^BH*UV V^FYGEDEXWCFRVGY&^#%CCCG&^F#$GY&U%^f1tocontinue:" so i dumped it.
Yeah, i had acc.........could you think of maybe theres an adapter out there for VESA to PCI or the big black ports (i meat ISA)? probaly not, but worth a try. Look in the win 3.1 section for a post on i need help to get win3.1 into SVGA 800x600 256 color mode.

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#5
May 26, 2011 at 12:04:01
The back part of the card isn't PCI, it just kinda looks like it. You can't do anything with that part unless you have a VLB motherboard. And I think the only motherboards that had VLB were some 486's.

It's possible the video card will work in an ISA-only motherboard. You just leave the VLB part of the card sticking out and not in any slot. It won't have all the video capabilities it would if it were in a VLB motherboard but you might get good enough video for dos.

Ding dong the witch is dead. . . .


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#6
May 26, 2011 at 13:11:48
OK...... will it handle Win 3.1 in SVGA 256 color 800x600 mode? or does that require a VESA slot?

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#7
May 26, 2011 at 20:25:23
I doubt it but you'd just have to try it and see. You'd still need to find the drivers. I know I've got some disks for old video cards but it might be awhile before I can look through them.

Ding dong the witch is dead. . . .


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#8
May 27, 2011 at 10:54:31
I tried to put it in a ISA slot and no go. Like i said, 2 of the chips have broken pins so that may be the problem. What happened was i put it in, booted the comp and the comp does "BEEEEEEP! beep beep beep beep beep beep beep beep!" out the onboard speaker then goes through the HDD boot process. No screen display. I'll keep it around in case of my cousins old comp but it'll not do anything for now. Got an old IDE controller for VESA slot but it's no good as i used it for extra HDD jumpers.

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#9
May 27, 2011 at 12:50:24
If the drive is IDE you might try mounting it in another computer and reading it there.

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#10
June 13, 2011 at 11:46:40
You already said the video card has broken or bent pins on the removable video RAM chips. And the display showed garbage on screen when you booted. Now put the two together and... why did you still blame the BIOS?

If it's a VLB card it won't fit in any computer I've seen that has ISA only slots. The VLB connector simply has no place to go - no empty space on these class motherboards for the clearance for that connector. Regardless, I doubt a VLB video card would ever work in an ISA only slot, even if you could get it to fit on the motherboard.


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#11
July 3, 2011 at 12:18:42
We actually have a few of these cards you are describing, one got left on my desk to identify what it was. No idea what it came from, we recycle computers, we were just interested in the chips that pop out like you described and thought they might be something "good".

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