Won't POST - Intermittent
I've got a problem that I'm having a hard time diagnosing.
I have a computer that won't POST. No motherboard beeps. This has only happened twice; once 3 months ago and today. The computer is nearing 3 years old.
Now for the tricky part: the computer POSTs fine immediately if I unplug the harddrive power cable, which leads me to think it is the harddrive. However, if I replug in the power and SATA to the HDD after a successful boot, the computer will also boot with no problems at all.
Intermittent problems like this always make me think the PSU has gone bad (a Seasonic 400W SS-400ET). Is it also possible the SATA controller has gone on the motherboard? I am having trouble diagnosing this problem at all since after trying my little fix, I cannot reproduce the error, and I did not have the foresight to tinker with it while it was down.
Help (and cheers)!