try here
http://support.microsoft.com/kb/941600
"Jon Davis" <jon@xxxxxx> wrote in message
news:ubZYyPeCIHA.4836@xxxxxx
Quote:
>I have a weird problem. I don't want to replace my motherboard (MSI P965
>Platinum), but I don't know what else this could be, except perhaps Windows
>Vista.
>
> When I boot up, around the time that it switches to high-resolution view
> (before login) I get a BSOD with the error being "INTERNAL_POWER_FAILURE".
> The BSOD goes away if I boot with ALL USB devices disconnected.
>
> But here's where I suspect it's Vista: once I get to the login screen, I
> can connect my USB hub and carry on like there's no problem.
>
> My USB hub is a the absolute best $60 high-powered USB hub I could find
> (Dr. Bott T7Hub), and it replaces a generic high-power USB hub I had also
> tried. I've found that the problem still exists even if I just hook the
> keyboard and mouse alone directly to the computer and no USB hub, and the
> wireless USB keyboard/mouse combo is also newly replaced from some old
> legacy USB keyboard and PS/2 mouse from long after the problem arose.
>
> I've replaced the chassis power supply as well, going up from a 500W Antec
> unit to a 600W unit.
>
> It seems Vista is doing some lame equalibrium test during boot-up and only
> during boot-up, and puking when it sees there's something odd. But, hello,
> Microsoft, that's the BIOS's job, not yours!! I wonder if there's some way
> to disable this check?
>
> Meanwhile, I've been using my compuer for about ten months now, just
> pulling the plug on the USB hub uplink until I get to the login screen.
>
> Jon
>