neazoi
Advanced Member level 6
hello I have an IBM PC-XT 5160 motherboard and I have copied the bios from these 27256 eproms. When I reprogram the bios to a 27C256 eprom it does not work on the computer but the willem programmer verifies that the chip has been programmed ok.
The BAD thing is that I re-insert the original chip on the motherboard and now it does not boot at all! I have only read the original eprom.
Please tell me what should I do?
I thought just reading original eproms cannot harm the program inside the eprom....
The BAD thing is that I re-insert the original chip on the motherboard and now it does not boot at all! I have only read the original eprom.
Please tell me what should I do?
I thought just reading original eproms cannot harm the program inside the eprom....