USB Power Problems / Blue Screen Crashes

  [DELETED] 13:10 06 Oct 2003

I've been noticing some strange issues on my machine. When I bootup and log in to windows if it is a boot up from cold, there is no power to any USB devices. I have two USB ports on my machine, one has a alcatel speedtouch usb modem attached to it, the other has a 5 port USB hub, which is powered via it's own power supply. If I reboot the machine, it will load fine and now I will have power to the usb devices.

However a couple of times the power has been lost to the devices and windows has blue screened on me, giving me a 'stop error, with possible hardware problem', is the USB problem likely to be causing this? I've been running the machine without the USB hub plugged in and the problem seems to go away? I'm confused as to why a self powered USB Hub could course this?

any advice anyone?
System Spec

Intel Pentium IV 2.8 GHz
1024 MB DDR Memory
160 GB 7200 ATA133 8MB Cache
Sapphire Motherboard with ATI chipset
16x DVD Player
52x24x52 CD ReWriter
ATI Radeon 256MB DDR Graphics with TV-OUT
Sony Floppy Disk Drive
AC97 3D Sound
USB2 Ports

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