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How do I OC my NB?

D

DaveAmerica

Junior Member
When would I want to do this?

I've been having some issues OCing my Q6600 and I think it might be fixed by OCing my NB, but how much should I do?



 
You don't OC your northbridge. The Northbridge clock is directly related to the FSB. You find the NB core clock by the formula:

( Stock Multi / Set Multi) * FSB (QDR)
So it'd be
(9/x)*1066 where x=set multiplier

You don't want the NBCC to go over 2000-2400MHz, i believe.

The problems you are experiencing are either caused by
1) FSB Holes (can't post in certain FSB ranges)
2) FSB heat load (thermal limitations)
3) FSB stress (just bump the vSPP/vMCH/vNB a little bit)
4) BIOS Update: Flash to the most recent
5) RAM Overclock (chose a lower divider)
6) Motherboad can't handle it
7) FSB strap ( you are at the top of the FSB strap so the NB clock timings are too tight. Try bumping the FSB past 401MHz)

It would be helpful to know your parts though.
 
Here is a post from a couple days ago, I think it got buried...😕

Help with OC

I'm running a Q6600 @ 333FSB 1.3625V. At Idle my temps are 49C (core 0&1) 42C (Core 2&3). At full load core 0&1 don't go over 70C and core 2&3 don't peak past 65.

Mobo is P5KC and Mem is 1:1 @ 5-5-5-15 (loosened from 4-4-4-12) running the latest BIOS. VID is 1.2875 (I don't really know what that means)

I can get her stable at 311FSB but thats a lousy 2.8ghz.

CPU-Z has my voltage at 1.232 idle, and sometimes i catch it dropping to 1.932 as soon as i set the second instance of orthos's affinity to core 2&3...sometimes
 
I assume you mean 1.1932, not 1.932.

But that's a huge amount of vDroop. Based on your load vDroop, you'd have to push your vCore to 1.45 or so, which is dangerous on a quad (for voltage and temperature reasons). That's assuming CPU-Z is reporting the correct voltages.
 
I've been going through some forums and read that I should enable the Voltage Damper (10mv)

Is this a good idea? What exactly is this doing?
 
I've been going through some forums and read that I should enable the Voltage Damper (10mv)

Is this a good idea? What exactly is this doing?
 
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