Overclocking a QX6800

fishfishfish

fishfishfish

fishfishfish

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30 Jan 2008
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I recently purchased a QX6800 to mess around with in a spare machine. I have it installed on an Asus P5QPL-AM MATX motherboard with 4GB of RAM and a Corsair H50 cooler.

I'm trying, rather unsuccessfully, to overclock it. The default speed for the QX6800 is 2.93 GHz and it has an unlocked multiplier. I've tried various things at stock volts but it keeps failing Prime or OCCT after just a couple of minutes.

The temps are staying relatively low. It idles at 34C and goes up to about 54C during Prime or OCCT stress testing. I've tried increasing the vid, but this hasn't had any affect.

Any ideas what I could be doing wrong, please? Or do I simply have a duff chip?
 
Hi.

What revison chip have you got? I've got a B3 chip and I've managed to overclock it to 3.30GHz with a voltage of 1.3825. Mind you, I'm using the Maximus II Formula motherboard so my quote may not reflect ideally for you.

One last thing, the QX6800 doesn't really overclock well. It just runs hot, even at stock speeds. All in all, it's just the fastest CPU with FSB of 1066MHz, that's all.
 
G0 Versions of that chip are quite rare I think - and they are the only ones that clock well unfortunatly - the older ones apparently don't clock as well and can run quite hot...

1.325 to 1.3625 should get you stable at upto 3.2gig tho, might need +0.1 on the northbridge tho.
 
Thanks very much for the helpful advice. It's a B3 version and has been running Orthos for 10 hours at 3.2GHz and appears to be stable - though it fails OCCT and Prime. Temps are about 55-66C. All I did was change the multiplier from 11 to 12 so the voltage is still at stock 1.29v.

I must admit, I was expecting something a bit more "extreme"! Will do more research next time instead of buying on impulse.
 
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