USB Not working

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Recently I was forced to rebuild my WinXP Pro system and shortly after that
most of my USB ports failed to work. I have a MSI Mother Board P6N SLI
Platinum, I'm using the built-in RAID 5 for a three drive 1.8TB and a 3ware
RAID5 for another 1.8TB. The boot drive is a 250GB IDE, on the forth channel
of the built-in SATA controller I have a 1TB work drive. As a test I have
another 250GB IDE drive on second IDE controller with my CD/DVD drive. All
of the internal drives seem to work OK. The MB has two front USB ports and
four back ports, I've added two-five port USB adapter cards. Before the
rebuild for the most part all of the USB ports worked, since the rebuild 99%
of the time when I plug a USB device (external HD or thumb drive) I don't
see the device and when I look in the device manager there are no errors. If
I plug the device into another computer I can use it. Any suggestions to get
the USB ports working?

--
jgt


.

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