I'm desperate - System Interrupts (Windows 7)

[OS-Wiz]

UPDATE: As promised, here I am to report on my findings.

I went into the BIOS and turned off everything I could think of. I then tried the computer out for 48h and the problem disappeared.

I then turned on the on-board audio, and waited another 48h. Flawless.

Finally, I turned on the USB Controller option and, again, no sign of any problems for the next 48h.

Today, I turned on the "USB 2.0 Support" option... and about 2 to 3 hours after, the CPU jumped to 100% and System Interrupts is the culprit, as expected.

I still haven't turned everything on (like "USB Legacy Support" for instance) but it seems I've found the problem... my question now is, how do I fix it?

Well, turning it off works, of course, but how can I have 2.0 USB support without going into the BIOS? Is there a way to fix this other than to buy a new mobo? And while I'm at it, what could have caused this?

If she has a free PCI slot available, buy a usb card and use it: http://www.newegg.com/Product/Produc...-010-_-Product cheapie, but worth a try. There are better available @ newegg.

[SE_Saga]

The mobo has:

- 1 x PCI Express x16 slot
- 1 x PCI Express x1 slot
- 2 x PCI slots

All of them are empty, so shouldn't be a problem.

She has an external hard drive and wireless internet, so those are the only USB devices that would get affected. I don't think the internet will be any slower because of this (at least, I didn't notice any difference), but the transfers between the internal and external hard drives may suffer a bit... but probably nothing she'll notice too much.

Well, that's a wrap then.

I'd like to thank everyone for your patience, and suggestions.

I see now that this should probably be in Technical Support, not the OS forum, but at first I really thought it was Windows Vista and 7 who were acting up.

I'll look for a PCI USB device but, until then, she'll live with USB 1.0