I get DISK I/O ERROR! I installed a new Motherboard and CPU upgrade as follows: I had an existing 486-66 with 1.2 GB hard drive using WIN95 (also have a 3.5" 1.44 MB floppy) and replaced the MB & CPU along with the same hard drive - the new MB is an AMPRO P3747 with 32 MB of PC100 sdram and a Celeron 400 CPU. I am able to boot OK and get into the set-up, however, it would not boot to the Hard drive I had been using, so I reinstalled WIN95 (IN the new system!!) and everyting went fine. But still when I try to boot I get the message: "Disk I/O Error, replace and press any key." I can see the HDD in my set up and it will autorecognize etc. I tried truning S.M.A.R.T. drive on and off in the set-up, no help. I tried using FDISK to check on the active partition and it seems to all be set just fine! Any ideas how to get this baby to boot into its WIN95?? If you are able to help me it would be greatly appreciated! Thanks - Brian

Howdy, Go into the CMOS/Setup when you do the auto detection of the hard drive do no select LBA, select normal. The 486 did not have support for LBA mode which is what the drive is most likely set to in the new system. So change it to normal see what happens then backup what ever is important, fdisk the drive, then set it up as LBA if you wish and then format and reload you don't have to do any of that but this is most likely your problem. Laters, Kevin The Tech Dude.

triple check the ribbon cable is pin1 to pin 1 and fully seated

ingnor my previous post, i read too quickly, i will add you my have to install motherboard resources (IDE and PCI bus) drivers.

I too was having same problem..u guys r a life saver THANK YOU

I still got that problem and I really did read your advises carefully ! any further ideals ?