Computer pauses until USB Drive spins up

Posted on 2008-11-03
Last Modified: 2013-11-14
I have an HP DC5800 SFF running Vista Ultimate.  Every time I stop using the computer for a few minutes, it will hang when I return until the USB hard drive attached spins up.  It must be using it to write temporary files or something, but I don't want it to.  It doesn't matter what drive I attach (I have about 4 differrent makes and models), it does it to all of them, and I don't have speedboost turned on for any of them.   Most of the time I notice it when using Outlook.

Question by:tfitz99
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LVL 88

Expert Comment

ID: 22879251
Disable any powersaving features on your USB ports and drives, so they don't spin down when not used.

Author Comment

ID: 22879379
I want to get to the root of the problem, not cover it by having the drives / port up and spinning at all times.  I would like to know why Vista needs to use the drive(s) when I have not set them to be swap space.
LVL 88

Accepted Solution

rindi earned 500 total points
ID: 22879563
Windows will always try to access any attached devices, even if they aren't really in use. This can only be "fixed" by disabling powersaving options. Apart from that, disks which are always turned off and on will normally not last as long as if they are used continuously. So keeping them running can help.

Author Comment

ID: 22879652
OK, I went into power options and I am set to High Performance mode.  I drilled down to the USB Settings, USB selective suspend setting and it was disabled.   Anything else specific I need to check/set?
LVL 88

Expert Comment

ID: 22879671
I haven't got a Vista PC online at the moment, so I don't know exactly where everything is. Also check in device manager for the specific devices, power options are often set there too.

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