My Q6600 can't over clock

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Raju Mon

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Nov 24, 2014
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My Q6600 can't overclock over 2.7 GHz .
My spec:
Mobo: Msi g41p33 combo
Ram 4x2 1333 (8GB)hcl
PSU: cooler master thuder 450w
GPU :Asus gtx 750ti
I tried oc in an MSI software named oc Centre when i oc to 3.0ghz(333x9)
System or game crashing
Is that problem with my processors

Also tried in bios then won't start
Fan on- off to 4-5 times then automatically turned on in default settings
 
Solution
J
Hi, from what I can see, the Msi g41p33 combo doesn't have any heatsinks on the VRMs so overclocking on that motherboard will be limited. Overclocking generally requires higher voltages and the process creates more heat output on the VRMs. If the VRMs get too hot, they become less efficient and can start causing system crashes. One solution is to get some DIY mofset heatsinks and stick them onto your VRMs.

Also, what CPU temps are you getting at 2.7 GHz at full load?
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JohnKau

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Feb 5, 2015
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Hi, from what I can see, the Msi g41p33 combo doesn't have any heatsinks on the VRMs so overclocking on that motherboard will be limited. Overclocking generally requires higher voltages and the process creates more heat output on the VRMs. If the VRMs get too hot, they become less efficient and can start causing system crashes. One solution is to get some DIY mofset heatsinks and stick them onto your VRMs.

Also, what CPU temps are you getting at 2.7 GHz at full load?
 
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Solution
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jackal575

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Stock vCore? Increase your base clock (from stock) until you start to see stability issues, then bump vCore +250mV and repeat.

Watch temperatures closely.. but don't worry too much, you can pick up a second hand LGA775 for cheap if anything crazy happens. Bear in mind that thermal throttling will kick in at 80 degrees or so!

Also check your RAM speeds, using the default multiplier will overclock your RAM too, you might have to set the RAM speed to 800MHz in BIOS or increase vDIMM. The fact your PC will not POST leads me to think that this is the case.
 
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VincentP

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Oct 18, 2013
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This is an 8 year old CPU. Your friends are lucky it is still working at all, especially an 8 year old motherboard.
Really not worth the effort. Buy something new. Just a basic Core i3 is much faster than this CPU.
 
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JohnKau

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It's an issue because he wants to overclock it and the Q6600 is very overclockable. (Isn't overclocking just fun anyway?)

The cheapest current model Pentium, the G640T has a CPU mark of 1959 while the Q6600 at stock speeds has a CPU mark of 2989. I would say an overclocked Q6600 is still decent for most low-end uses.
 
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JohnKau

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Okay so it's unlikely that your CPU cooler isn't the problem. But just to be sure, is your CPU on full load when you play FC3?

And what motherboards are your friends using?
 
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VincentP

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The G640T is previous gen, and it is a low power model.
The G3240 is the cheapest current model pentium and scores 3265 on CPU Mark.

 
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Rocking Durgesh

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That's the way you go wrong and your system becomes unstable at that frequency. ... Overclocking is step by Step method, you can't go directly on some frequency and voltages and prey it to be stable. ..I'd you do so, then the system will become unstable and will produce more heat. . First Download the CPU stability testing software prime95 from here :
http://www.mersenne.org/download/
Use Hwmonitor to monitor your temps. Don't overclock by any software because overclocking is not the thing that can be done by software. First set the XMP memory profile(if exists) enabled to set your RAM correctly. Then Go in BIOS and find the CPU clock ratio, this is the multiplier setting. It starts at a multi of A (some no.)xB(BCLK)(normal factory settings) to give you A Gigahertz. So up it .5 at a time and boot to os and test with P95 for stability and monitor your temps. Do this for approximately 20 minutes. If it passes raise the multi another .5 and try again. You'll get to a point where either P95 won't pass or your temp will gone so high. If the temps gone high you'll have to stop and work on cooling. If P95 fails then go to the Advanced voltage section in bios and add some volts to the CPU VCore . Stay in offset and just add a bit by tapping on the "+" key and test again.
If your temp goes really high them you have to stop and keep it to cooling. A step will arrive when your P95 never pass or temp immediately go high. Them you have to stop overclocking and you get your extreme speed of your processor. ....
 
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InvalidError

InvalidError

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Every CPU is different. "Luck of the Draw" is an important factor over OC results, as is the quality of the motherboard's voltage regulators, layout and support components.

As others have said though, most modern lower-end mainstream CPUs will easily match if not beat your OC'd Q6600, so I would not recommend spending any significant money on it. 3GHz is only 25% more. If your CPU feels already grossly inadequate, 25% more is not going to save it.

Modern CPUs with integrated memory controllers have a ~60% IPC advantage mainly from drastically lower memory latency, then you have to add another ~40% in other architectural gains and 30-50% in base clock speed. At the end of the day, a lightly overclocked Pentium G3258 would run circles around your OC'd Q6600 in most cases while using less than half as much power.
 
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InvalidError

InvalidError

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I think you may have forgotten the G2xxx series based on Ivy Bridge. That makes the G640 two generations out of date.
 
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jackal575

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Try a few things for me..

Enter your BIOS and go to the 'Cell Menu' section
Set CPU base frequency to 333
Set FSB/DRAM Ratio so that the adjusted DRAM frequency will be closer to 1333
Set CPU VTT to 1.35v or so, if your pc still cant boot, set this higher

After successful boot, use software to check temperatures and report back

 
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