I am running my QX9650 on stock setting, using passive cooler without the fan.
The cooler, is a heatpiped SilenX iXtrema Pro. However, the PSU is located above the heatsink, and it has an upward drawing fan located about 5cm above the heatsink. Not exactly 'passive cooling' I would say...

On idle, the core temp is as below. The one in green, is captured from the thermaldiode on the processor (less accurate), whereas the CoreTemp captures the temperature on each of the core, (more accurate).
[attachmentid=2341101]

The screenshot below is taken while running IntelBurnTest v2.53 LINPACK.
It is set to run at 64-bit, Normal (1GB) and High (2GB), and set to repeat 5 times.

I've ran this a few times, and you can see the max temp recorded under the "high" column.
[attachmentid=2341088]

And this is Prime95 after half an hour. It is known to generate less heat than LINPACK.
[attachmentid=2341115]

I couldn't do this without adding a drop of oil on the heatsink.
And my heatspreader has not been lapped, all stock condition... What you guys think?

This post has been edited by alexei: Jul 20 2011, 06:25 PM

temp is ok for me.
and without fan setup, i must say it's pretty good result actually.

for passive cooling with stock setup i think your temp is in the ok range.. though if want to oc u still need to mount those fans on or your cpu might burnt

Thanks, just wanna know before I go take next step and destroy the unit... lap it, remove the heatspreader etc... I don't think the heatsink design is good for OC, but will try and keep updated...

I know most readers here already migrate to LGA1156 or LGA1366... this is old tech.

TS in aircond room?? temp is so low =__=

37 degree celsius mobo temp is low? you correct ah???

Ok, after whole night trying, this hardware can only go until 3.66GHz limited by MCH cannot go more than 380FSB even with increased voltage, and strapped PCIE and termination clock.

Final setup, is underclock and undervolt for 24/7 operation.


This post has been edited by alexei: Jul 23 2011, 02:08 AM