I bought a dead 486 in the hopes that I could use the case and some of the parts inside. Of interest was the Diamond Stealth 64 DRAM T VLB, so I got a UMC based VLB motherboard to replace the dead one. Unfortunately, the new board refuses to so much as beep with the VLB card in it. The new board works great with a 16 bit ATI VGA Wonder though. I tried giving the card a good cleaning with deoxit and qtips, no luck. I tried setting the wait states in both positions, with both jumpers and the bios. I tried disabling video rom shadowing. I couldn't find anything else that looked relevant.
I've read that VLB can be difficult, is there anything I can do about this? Is the card likely to be dead or just incompatible with my motherboard? Should I avoid an S3 based VLB card if I buy a replacement? I was under the impression that these S3 cards were second best for DOS, after Tseng cards. If I don't want to pay ebay prices for a Tseng, what's a good third place option?
I've read that VLB can be difficult, is there anything I can do about this? Is the card likely to be dead or just incompatible with my motherboard? Should I avoid an S3 based VLB card if I buy a replacement? I was under the impression that these S3 cards were second best for DOS, after Tseng cards. If I don't want to pay ebay prices for a Tseng, what's a good third place option?