@ptek
Is the computer so old that you can`t flash the bios?
It`s really easy.
I`VE done it many times before (while sweating profusely)...
You need to get the exact make and model-number of your motherboard and download the flash utility (the writer) and the actual bios upgrade to suit your MoBo...
Copy them to a (bootable) floppy, and reboot from that...
Once it boots into shell,
...in the command line type
flash blah blah number...
And that`s it...
(Detailed instructions are found on the web...)

[Sry, if i missed something here]