I have an HP Compaq nc8430 with a new install of Windows 7 (32 bit).

Every time I sleep the laptop, it crashes. It also crashes sometimes just during normal use. It does hibernate properly. The only reliable trigger I've found to crash it is sleep mode.

It's not overclocked, and only standard drivers are installed.

It seems to always be the following error:

A clock interrupt was not received on a secondary processor within the time interval.

And the following STOP code:

STOP: 0x00000101 (0x00000061, 0x00000000, 0x80DBF120, 0X00000001)

I'm not sure it's always the same parameters exactly, but always seems to be error 101.

Given the text of the error message, I've disabled the Dual Core option in BIOS, and this appears to have fixed it - no crashes so far, and it sleeps ok now.

However, I'd love a solution that doesn't involve cutting processor performance in half.

Any suggestions?