I have been having problems with a machine I built from spare parts for my sister. After about a year of faithful service, she suddenly got a 'disk boot failure' message. I checked all cables, etc. everything was fine. I installed a known good drive, and it still would not work. I tried the existing drive in another machine - it worked fine.So I changed the motherboard.
About a month later - 'disk boot failure'! Again, I tried a good drive - same result. This time is switched out the board, processor, memory and installed a new drive. Reinstalled Win95 osr2.5. Everything was fine. Until amonth or so later - 'disk boot failure'!
I ran wd diagnostics on the new drive - everything was fine. The drive worked in other machines w/o a problem. I disassembled & reassembled the machine, and reinstalled the os again.
A month later, I again have a 'boot disk failure'!
This machine is driving me crazy! Anyone have any suggestions as to what to look at? I don't even know where to go in my library of manuals for this one!
I would have suspected some type of worm/virus, but none has been found by antiviral software, plus I've basically changed all of the hardware!
Any help / suggestions will be GREATLY appreciated!