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Windows 7: Hard drive disappears randomly

26 Nov 2009   #1
SevenUser09

 
Hard drive disappears randomly

I have an IDE hard drive as my secondary drive used for backups or misc files. I also have an external. But for some reaosn on Windows 7 x64 the IDE (labelled as D randomly vanishes. BIOS sees it fine allt he time. Any ideas or suggestions aside from replacing it as it is still good.

My System SpecsSystem Spec

26 Nov 2009   #2

7600.20510 x86
 
 

If it vanishes mysteriously, chances are it's not still good.
My System SpecsSystem Spec
26 Nov 2009   #3

W7 x64
3rd Rock from the Sun
 
 

OP, in (control panel) advanced power settings disable hard drive sleep, or increase the delay. This is almost certainly the cause of what you're experiencing - I doubt there's anything at all wrong with your drive...
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26 Nov 2009   #4
SevenUser09

 

Does just placing 0 int he minutes box effectivly disable hard drive sleep?
My System SpecsSystem Spec
26 Nov 2009   #5

Windows 7 Ultimate x86-64
 
 

Is it connected properly to the controller, and any other IDE devices? I'd replace it with SATA II or SATA III (unlikely unless you have a new motherboard) drive and cable.
My System SpecsSystem Spec
26 Nov 2009   #6

W7 x64
3rd Rock from the Sun
 
 

I just entered a very large number, eg: 999 minutes... working on the basis this represents the time since the last disk read operation it doesn't mean the drive will spin down to dormant after 999 minutes - but will only spin down that long after it was last accessed.

Sure, try zero. That may very well keep it permanently spinning, I just used a large sum because it covered my day to day requirements.

This setting should make no difference to whether the drive is IDE or SATA.
My System SpecsSystem Spec
14 Oct 2010   #7

Linux, Windows 7, Windows XP, Solaris, UNIX
 
 

Quote   Quote: Originally Posted by Qdos View Post
OP, in (control panel) advanced power settings disable hard drive sleep, or increase the delay. This is almost certainly the cause of what you're experiencing - I doubt there's anything at all wrong with your drive...
Well, what if you WANT it to sleep to save power/extend the drive's life. Then how do you force it to be seen in the "Disk Management" CP applet?

Usually my drives are there, and they wakeup when I access them. But sometimes they disappear entirely and I won't see them again unless I reboot.

Obviously, this is extremely frustrating - I don't understand why Action -> Rescan Disks doesn't find them???
My System SpecsSystem Spec
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