Hard Drives intermittently disappearing

jprev

Honorable
Apr 12, 2013
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0
10,510
Hello -

My rig I built about two years ago (which has been running great ever since) is starting to give me some weird problems, and I'm not quite sure what to blame it on. Briefly, my system is as follows:

ASRock P67 Extreme4 motherboard
i5 2500k
16gb (4x4) G Skill Ripjaws DDR3 RAM
OCZ ModXStream Pro 700W PSU
OCZ Vertex2 SSD (boot drive)
2 WD HDDs (1TB and 2TB)

Again, worked great for 2+ years. Woke up yesterday to it refusing to start - basically it appeared to be unable to find my SSD boot drive. I messed around with it for a while, unplugged everything, plugged everything back in - I could intermittently get it to find the SSD in the BIOS, but not consistently and could never get Windows to boot.

So I took the SSD out of my laptop and put that in, then put the SSD from the desktop in the laptop, reinstalled Windows on both (at this point the desktop would find the SSD), and now I can get Windows to boot (not a 100% success rate...) from the new SSD, but my HDDs are intermittently disappearing (i.e, this time I started the computer up, my 2TB drive was found, worked, and then about 10 minutes later was not being detected).

At this point, I think I've ruled out the drives themselves as the problem, and I think it has to either be the SATA controller on my motherboard, or the power supply. Is there a way to determine which it is? Would a problem with the SATA controller be intermittent like this? I'd hate to buy a new motherboard to find out that the power supply was the problem all along, and vice versa.

Any thoughts? Thanks in advance!
 

mcbowler

Distinguished
Jan 2, 2007
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18,630


Try a new power supply. I had the same problem while mining bitcoins. I turned down the voltage on the GPU to reduce power draw and I havn't had the missing hard drive problem since.