I'm struggling to get a Q6600 stable. I'm on the current BIOS, with a mix of memory running at 667.

The box runs ok if I run an OS like NetBSD which can limit to one cpu core. If I run all 4 cores, the unit is very tempramental.

No OC settings (obviously. I'd rather underclock than overclock!)

I've read threads here which suggest the P5KE isn't crash hot at driving the older core2quad. Maybe finding a cheaper 2 core or a newer Q5 or Q7 series might be a way out, but meantime, is there a BIOS setting I am missing which can limit the number of apparent cores?

-G