Advice on overcloking a Q9650

DarkWhisper · 27 Dec 2009 at 22:27

Advice on overclocking a Q9650

Am having real problems trying to run stable any clocks over 3.6ghz. At the mo am running everything on auto and running 3.663. if i slowly up the vcore voltage with the rest up its self on auto? ive try almost everything to get it to run.

AgedIdiot · 28 Dec 2009 at 00:15

I have a Q9650 but am on a P5Q-E motherboard so my clocking experience is neither use or ornament to you.
The link below may be of assistance - I hope

http://www.overclock.net/intel-motherboards/352407-asus-rampage-formula-x48-thread.html

Out of interest what vid chip have you got ?

megatron · 28 Dec 2009 at 08:00

The deluxe p5q has problems with 1:1 fsb:mem. In my experience too but others have 1:1 working. The most important setting personally was 400fsb strap, I just set to 333 boot strap and did all my testing like that. Only when I set to 400fsb bootstrap did I get stability. Only problem with this is that I need memory to run 566Mhz or 1133Mhz DDR. I'm using some crucial ballistix which is known for expiring (its new from packet after an RMA ages ago). I've got a fan on it and with the Asus overvolting its probably at 2.08v 555 18 55.

I've seen the effects of GTL refs, they do influence stability. However only touch these if you have found your desired fsb & cpu speeds and are trying to lower vcore or get stable without increasing vcore. They should not go higher than x0.67 (not quite accurate). Any changes you make to FSB, vTT, and probably vCore will throw these fine adjustments out. You have core 0 & 1 for cpu 0 & 1 and cpu 2 & 3.

http://www.xtremesystems.org/forums/showthread.php?t=202292
I don't quite believe the equation bit due to what I said about so many factors change the settings indirectly but the link to the tech repository is where I found the relationships between the settings.

Here are my settings:http://forums.overclockers.co.uk/showthread.php?p=15608059#post15608059

Although I've not reached any final settings. I really need the 1:1 divider to work to push the cpu more.

DarkWhisper · 28 Dec 2009 at 09:57

tryed all them from 63-67
Vid chip?

AgedIdiot · 28 Dec 2009 at 11:20

if you download Core Temp & run it - it gives you details of your chip's Vid.

In principal the chip's vid is the minimum voltage it needs to run at its qouted speed - as tested by the manufacturer.

Although it is upon occasion proven incorect as a rule of thumb the lower the vid the better the overclock. Also you do not have to put as much voltage through to get the same clock which equals lower temps etc.

DarkWhisper · 28 Dec 2009 at 13:02

vid 1.30000v

pastymuncher · 28 Dec 2009 at 13:30

You may be having similar problems to me. X48 is a terrible chipset for clocking 45nm quads. Unfortunately i did'nt find this out until it was too late. My Q9550 easily does 3.6Ghz on stock volts but beyond that the board is badly fsb limited and needs some serious voltage on the NB and other board tweaks. It's so bad that 3.8Ghz is impossible to do while being Linpack stable. I may end up swapping boards with the MSI P45 Platinum in my second rig or just buying a new P45 board altogether.