Cannot get Q6600 to 3.6......

Dazzlercee · 1 Feb 2008 at 16:13

I currently overclock my Q6600 at 3.4Ghz (426x8) at 1.45 volts in bios. This drops to approx 1.38 under load. My memory comprises 4 x 1024 of Geil 800Mhz running at approx 850 Mhz. CPU heatsink is Noctua NH-12F. Temperatures under full load approx 66-67'C in a warm room with all case fans on minimum.

Out of curiosity I tried for 3.6Ghz (400x9) and could not get it stable (Orthos) even up to 1.55v on the core. Should I try 1.6v or a bit higher or have I hit a wall with my CPU?

TIA

w3bbo · 1 Feb 2008 at 16:38

Raise your NB voltage a notch or 2. You are overclocking 4 memory banks which will put a lot of stress on the memory controller.

VortexA1 · 1 Feb 2008 at 16:44

w3bbo said:
You are overclocking 4 memory banks which will put a lot of stress on the memory controller.

Ditto

area512003 · 1 Feb 2008 at 16:47

Dazzlercee said:
I currently overclock my Q6600 at 3.4Ghz (426x8) at 1.45 volts in bios. This drops to approx 1.38 under load. My memory comprises 4 x 1024 of Geil 800Mhz running at approx 850 Mhz. CPU heatsink is Noctua NH-12F. Temperatures under full load approx 66-67'C in a warm room with all case fans on minimum.

Out of curiosity I tried for 3.6Ghz (400x9) and could not get it stable (Orthos) even up to 1.55v on the core. Should I try 1.6v or a bit higher or have I hit a wall with my CPU?

TIA

Is it a B3 or GO stepping?

steve258 · 1 Feb 2008 at 16:51

Judging by temp I'd assume it's a G0. As suggested I'd raise the NB voltage a bit.

Dazzlercee · 1 Feb 2008 at 16:52

w3bbo said:
Raise your NB voltage a notch or 2. You are overclocking 4 memory banks which will put a lot of stress on the memory controller.

It is a B3 stepping.

Noob Question:

Is the NB voltage the MCH Voltage or something completely different?

steve258 · 1 Feb 2008 at 16:59

It should be a separate NB voltage option, but if you have MCH (Memory Controller Hub) then raise that a little as well.

wuyanxu · 1 Feb 2008 at 17:13

similar problem, i didn't think to raise MCH temperature, afterall, i did have 426FSB stable, so how will raising MCH voltage help?

Cob · 1 Feb 2008 at 17:37

You'll be very lucky to get 3.6ghz out of a B3.

I managed to get 3.52ghz out of mine at 1.47v under load (1.525v in BIOS). Any more vcore and the load temps were getting nasty, even under water.

Hesky82 · 1 Feb 2008 at 17:42

Dazzlercee said:
Temperatures under full load approx 66-67'C in a warm room with all case fans on minimum.

Are you using coretemp to read these temps??

Dazzlercee · 1 Feb 2008 at 18:27

Hesky82 said:
Are you using coretemp to read these temps??

I am using CoreTemp, Everest and Speedfan (+15'C).

I have just been running Orthos at 3.6Ghz 1.575 (1.50) vcore. Temps got to about 72'C after 20 odd minutes when I ended the test. I am happy with this for the moment BUT I will keep a close eye on temps as weather gets warmer.

FSX is really the only CPU intensive software I run so I doubt it will ever get stressed to the extent of Orthos.

If I have any probs I will revert to 3.4 as this has given me no problems over the last 6 months or so.

schumi84 · 1 Feb 2008 at 18:45

I think i may have to look into lapping my Tuniq, as my Q6600 is currently at 71 71 63 65 with 1.35v in BIOS (1.312 in CPU-z) with Prime95 running small fft's. Overclocked at the moment to 3.42GHz, wouldnt mind higher, but need to keep an eye on temps.

Off out in a bit so will leave it running to see where i am from there.

Hesky82 · 1 Feb 2008 at 18:58

Dazzlercee said:
I am using CoreTemp, Everest and Speedfan (+15'C).

I have just been running Orthos at 3.6Ghz 1.575 (1.50) vcore. Temps got to about 72'C after 20 odd minutes when I ended the test. I am happy with this for the moment BUT I will keep a close eye on temps as weather gets warmer.

FSX is really the only CPU intensive software I run so I doubt it will ever get stressed to the extent of Orthos.

If I have any probs I will revert to 3.4 as this has given me no problems over the last 6 months or so.

good job!