Improving and tightening my overclock...

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Joined
8 Aug 2005
Posts
1,101
Location
Reading, UK
Hi guys,

I have some questions with regards to improving my clock up to 3.6GHz - realistically the highest amount I can safely get the Q6600 G0 up to (rest of the spec in my sig).

I currently have the following settings in the BIOS:

FSB: 377
Multiplier: 9
Vcore: 1.40v
DRAM Volt: 2.10v
RAM Timings: 5-5-5-15

The rest is set to auto. The following is reported on windows at 100% processing - that's folding, not prime (it is prime stable though):

VID: 1.2375v


Temps
Cores: 63 62 54 52 (note: these temps are about 8-10C less than when testing for prime stability)
NB: 43
SB: 37

Voltages
Vcore: 1.32v
SB: 1.09v
FSBT: 1.42v
DRAM: 2.19v
DRAM Ref: 1.10v
NB: 1.49v


I plan on putting my new hard drive for RAID 0 shortly, and I'm going to take a look at my spread of my thermal paste as I think it may not be covering one side of the processor, doubt it will make much difference though.

My question is, what should I change in order to get myself stable to 3.6? I tried previously with 400 * 9 at 1.425v and it lastest for a couple of hours through prime, but crashed shortly after that. I also noticed that the NB voltage was being reported as 1.69v at the time - not good! The DRAM voltage seems a bit high at the moment as well, 2.1v is the max rated voltage...

Is it also worth me trying 450 * 8 rather than 400 * 9? What would the difference be voltages and temp wise? I'm thinking about this because the RAM I have can be set up to 1000 in the BIOS without overclocking, and would the machine be quicker with higher FSB, lower multiplier and a higher RAM clock or with a lower FSB, higher multiplier and lower RAM clock but tighter timings i.e. 4-4-4-12?

Any help would be welcome :)

p.s. this isn't a reactionary thread from Cob's warning about his quad core, I've been planning this for a while :p
 
Ok, I tried the following a couple of nights ago and it BSODed on me fairly quickly:

FSB 400
RAM 5-5-5-15
Vcore 1.45v
DRAM 2.10v
NB 1.45v
FSBT 1.24v, then tried Auto

Is it simply a case of me upping the Vcore? I've had a look around and seen that guys with similar VIDs have been getting 3.6 on about 1.45v.
 
We seem to have a slacking news reporter :P

I've upped the voltage to 1.475v in BIOS, which is reporting as 1.384v in CPUZ. Been folding for 90 mins so far, and the temps aren't that much worse :) 65,63,62,61. If this stays stable overnight I'll prime stable it then see how much more I can push it.
 
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