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Ok this is crazy, two hdd failures in the last two weeks

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Senior Member
May 10, 2009
Both started throwing smart errors, the last one was failing to detect in POST as well, but didn't have any performance issues once it had detected. It was ten months old.

Now another drive that i got back as an RMA return for a drive i bought that was dead has died after a month or three, throwing a different smart error and loosing a bunch of data.

This latest failure came shortly after some attempts at serious overclocking that involved an awful lot of crashing in windows, so i assumed that was what happened to the data until i discovered that it doesn't pass smart quick tests.
Now i'm wondering what's going on!
Is it possible to kill a hard drive via overclocking? Seems like probably not to me, but what do i know?
alright Bob, you cant volt mod a hard drive, thats what happens to them when you do.

sorry to hear, I had one of mine fall out of a 3 drive raid0 but was ok. just checked for errors and running fine now as a single drive.
It's not like i was trying to put 256mb more cache on it! Only 128!

Doing a full sector check now, though mostly just to asses my chances of getting my linux install off it intact. This explains why things have been behaving strangely recently (crashes to a solid white screen with sound hang in the .25 second loop flavor).
There was a harddisk study done with Google server farm and other server farm out there. There was a correlation study done with one drive failure and second drive over time in weeks. There is correlation of the failure within weeks of first drive failure.

This basically means that the failure of disk are not random and cause by enviornmental conditions.

My feeling is that your haddisk is experiencing some heat related problem or electrical over stress. The EOS can occur because your PSU is heavily loaded and eventually damage the drive through 12V/5V line.

What you should be checks are the temp sensor in the harddisk and monitor voltage.
Been running at 30-35*c at most, PSU should have plenty of extra juice.
Can ramping up the PCIe speed actually damage hard drives? I've been assuming it was simply a data issue.
Usually the voltage drops, but sometimes if you have a BIG load on 12v and very little on 5v/3.3v the 5v and 3.3v will go over voltage.

If you overload it further, good ones shut down, bad ones go BAM and fry things.