Clock Speed Spikes during Orthos with pics

[996GT2]

So I recently upped the clock on my CPU after lapping the IHS and adjusting some RAM timings...Orthos seems pretty stable so far (at least at the 2.5 hr mark), but I get these random speed spikes:

http://s78.photobucket.com/alb...ew&current=Orthos2.jpg

What's causing this? My HTT should is set in BIOS to 290 MHz, which approximately equals a clock speed of 2.75 GHz with a multiplier of 9.5x. However, it spikes to as high as 342 MHz during Orthos.

 

[GuitarMachine]

i wonder how hot its getting when it spikes

 

[996GT2]

It's about 50-52C load during Orthos with my Freezer 64 Pro at half RPM and all case fans at 50% speed ish. I have a 120mm intake, 2 92mm intakes, 1 92mm exhaust via fan adaptor, and a 120mm side exhaust...the Earthwatts doesn't really do anything for the airflow and it gets fed mainly by the 120mm in the upper drive bays.

 

[996GT2]

bump

 

[zach0624]

If its stable then its probably fine however look in the bios and see if cool n quiet is enabled if it is try disabling it. also does it do that at any other ht settings?