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I have a SATA disk in an external eSATA enclosure. Most of the time it's powered off, but when I turn it on windows hangs for 15-30 seconds. No sound, no mouse, nothing. Then after 15-30 seconds, everything is fine again.

What could be causing this, and how can I fix it?

The enclosure is a Vantec Nexstar 3, and the disks have both been Western Digitals. (I only have the two to play with.)

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up vote 2 down vote accepted

Try new driver for eSATA controller or for chipset.

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I installed my motherboard (intel) raid-drivers and it seemed to help for this problem, very strange – Ivo Flipse Jul 20 '09 at 8:53
Updating chipset (and raid) drivers has fixed it. – pgs Jul 20 '09 at 9:22

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