Q6700 OC settings help request

[turbines]

I have Q6700 running at 3400 GHz on Maximus II Bios version 802. I am running on air with lapped TRUE and processor and 2 x 1 GB Crucial Ballistix Tracer DDR2 PC8500 at 445Mhz . I would be very happy with this overclock if I can get it stable. Right now I have the Vcore set to 1.387vdc and my North Bridge set to 1.259vdc. All other settings are presently set to "Auto" The system will run stable 12 minutes under OCCT but when I run Prime95 I get the following error on Thread #3 after about 20 minutes. "FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.". To obtain stability do I need to keep increasing both the Vcore and NB? Is there a preference as to which one I should try to increase first? Are ther other settings I might be able to adjust to obtain stability at lower voltages?

[Leeghoofd]

more Vcore prolly mate...what is read out in CPU-Z under load ? is LLC enabled or disabled ?

[turbines]

CPUID gives 1.384 volts under load with LLC enabled

[YMAA]

More vCore. We're in the same boat...Q6700s that seem to need more vCore than others at the same clocks past 3GHz or so.

[Lestat]

1.387vdc

no way man,,, your only at 3.4ghz for petes sake......

thats gotta be the worst quad i have ever seen even the old B3 quads didnt take that much votlage.

[Loser777]

Not really, my second Q6600 did 3.5GHz @ 1.44v, 3.6GHz @ 1.51v.

[turbines]

I have Vcore set to 1.397 volts and I've been Prime95 stable for over 9 hours now. I will let it continue to run for 24 and see what happens. What is the highest temp I should be seeing under load? So far 56C is what I've seen on Core Temp.

[Cranox]

56 is ok in normal use u never get this temps , u could use Realtemp because it displays the highest temp u cpu did in a bench/prime