First post, by Hezus
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Hi there! Reaching out to the Vogons community to help me out with a problem. I've recently aquired a 486DX4 100 with a very exclusive tastes in harddrives. I like to work with CF cards as much as possible but it doesn't want to detect it. Overall, the onboard IDE controller is shoddy. So I got myself a Promise Ultra100 IDE controller to help fix that problem. However, new problem is that the system doesn't like this card at all. It just fails to detect the drives connected to it. ( "BIOS not installed because no drives attached")
The socket 3 motherboard is a 8049 v1.1A (https://www.elhvb.com/webhq/models/486pci/exp8049.html), with a AMD 486 DX4 100. It seems this board either has AMI bios or Phoenix. Mine has AMI v1.0. Interestingly enough is that the Chip on the board says Phoenix. I expect this board is by DataExpert, but I can't find it labeled.
I've verified that the ULTRA100 card is in fact working by putting it into a socket 7 system. It detects the drive I'm feeding it just fine. So the drive or the cables isn't the issue. So I'm quite sure the problem lies in the BIOS somewhere. I've tried to disable the onboard IDE controller, switched some IDE related settings around, but nothing seems to help. I've resorted to the ULTRA100 manual, but it doesn't give me any pointers on this issue. The BIOS of the ULTRA100 is on the lastest version.
Anyone got any other idea or thing I could try?
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