Controller on the mobo could be going out? I would have thought PSU first too. Also might want to change the cable. I had a bad ribbon give me intermittent errors like this and it took forever to diagnose.

lopaka

FORC5 wrote:
customer complaining that occasionally system no boot with hard drive error.

I have yet to duplicate error but that is not the weird part. Figuring maybe HD 
or PSU I put in a new Hitachi drive. when at the desktop any keyboard strokes 
locks it up hard. Does not do this with the older maxtor. Have tried two 
different new hitachi drives. Tried a different PSU thinking maybe not enough 
power with the new drive.

Possible compatibility with the MB ???? older system, ECS k7s5a. No blown caps 
on mb or in psu. I know there could still be bad ones though. I believe the 
most current bios.
memtest runs clean

any ideas appreciated.
fp

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