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***The Official Q6600 Overclocking Thread ***

Blend. It stresses both CPU and memory, and you need those two to be stable for your system to be stable.

Tho personally I find F@H to be a better indicator of CPU stability.
 
Small FFTs will make a CPU crumple quicker (and run hotter) that the other tests. Blend is useful for your final stability tests but I wouldn't bother if running under 450MHz-FSB, I mean we know your mobo can do this stably and same for your memory.

If your running mental high FSB or really low timings etc then Blend will be a good one but if you want to give the processor a good kicking then stick with a 12-24hour Small FFTs session.
 
My G0 Q6600 L720B013 struggles to break 2.9Ghz. My system is in sig, I could get my old E6600 to 3.3ghz.

I think I need to turn off speedstep, hyperpath 3 and boost volts a little.
 
supafly said:
My G0 Q6600 L720B013 struggles to break 2.9Ghz. My system is in sig, I could get my old E6600 to 3.3ghz.

I think I need to turn off speedstep, hyperpath 3 and boost volts a little.
Click to expand...


Your P5W DH is more than likely limiting your overclock with quad.
 
supafly said:
My G0 Q6600 L720B013 struggles to break 2.9Ghz. My system is in sig, I could get my old E6600 to 3.3ghz.

I think I need to turn off speedstep, hyperpath 3 and boost volts a little.
Click to expand...

As easyrider says its the motherboard, I have one and I am about to build a shuttle media PC, I plan on getting a Q6600 for my main pc and move the processor from it over to the shuttle. From reading up on it the board with a quad in it will run at a max FSB of 333mhz anymore and it just gives up.
 
Well I have reached 3.88ghz but its crashed out so I guess its my Ram limiting me.

Works stable at 3.6ghz as a healthy safety margin at 1.41v.

Idle temps around 40c and load is around 60c.

DeadMan
 
Scoobie Dave said:
Nice clock m8, is that on water?
Click to expand...

Yes :)

image189ko5.jpg
 
Overclocking Q6600

Hi I have just purchased a Q6600 (B3) Gigabyte DS4 (P35 Chipset) Mobo and some OCZ PC8500 RAM (Micron D9GMH chips) I have done a lot of overclocking on AMD X2, NForce 3 systems but this is all new to me!
At the moment my CPU will run at 266MHz FSB, Intel utilizes Quad speed technology so 266*4=1066MHz FSB effective. My RAM then will have a ratio of 1:2 with the FSB as it is rated at 566MHz multiplied by two for Dual Data Rate. Now what I want to ask, should I lower the RAM speed to say 800MHz to allow for a 1:1 ratio with FSB? At say 400MHz and set the CPU to 400*8=3.2GHz. What in your opinion is the way to go for say a 3GHz or 3.2GHz overclock? Is a 1:1 ratio to the RAM more efficient, or does raw RAM speed make up this?, or benchmark wise does it not really matter? I have also purchased a reliable PSU Corsair HX 620W so power should be stable!With my mobo I think the FSB multiplier is unlocked, so to achieve an overclock it can be adjusted ie. 266MHz*12=3.19GHz. Leaving the RAM at 1:2 ratio. To sumarise will I benefit from lowering RAM speeds and timings? A 1:1 ratio with the FSB or leaving FSB,RAM (@1066MHZ)and ratio alone and adjusting multiplier?
Thanks guys,
Jonnygrunge.
 
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Jonnygrunge said:
Hi I have just purchased a Q6600 (B3) Gigabyte DS4 (P35 Chipset) Mobo and some OCZ PC8500 RAM (Micron D9GMH chips) I have done a lot of overclocking on AMD X2, NForce 3 systems but this is all new to me!
At the moment my CPU will run at 233MHz FSB, Intel utilizes Quad speed technology so 266*4=1066MHz FSB effective. My RAM then will have a ratio of 1:2 with the FSB as it is rated at 566MHz multiplied by two for Dual Data Rate. Now what I want to ask, should I lower the RAM speed to say 800MHz to allow for a 1:1 ratio with FSB? At say 400MHz and set the CPU to 400*8=3.2GHz. What in your opinion is the way to go for say a 3GHz or 3.2GHz overclock? Is a 1:1 ratio to the RAM more efficient, or does raw RAM speed make up this?, or benchmark wise does it not really matter? I have also purchased a reliable PSU Corsair HX 620W so power should be stable!With my mobo I think the FSB multiplier is unlocked, so to achieve an overclock it can be adjusted ie. 266MHz*12=3.19GHz. Leaving the RAM at 1:2 ratio. To sumarise will I benefit from lowering RAM speeds and timings? A 1:1 ratio with the FSB or leaving FSB,RAM (@1066MHZ)and ratio alone and adjusting multiplier?
Thanks guys,
Jonnygrunge.
Click to expand...
Only the x6-x9 multipliers are unlocked. You can drop down to x8 to gain a faster FSB.

Some people say 1:1 is better, some say run your memory as fast as you can. I'm in the latter group as my benchmarking showed my system ran a bit faster with my PC8500 running at its advertised speed. You'll have to benchmark your machine to find out which works better for you.
 
Ok so I think I will go for a 3GHz overclock 333*9 and have the memory at stock, by setting the memory divider to 5:8, thus RAM will still run at 1066MHz. I take it this is an easy setting in the BIOS (memory divider) on the DS4?
Jonnygrunge
 
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You'd need a 5:8 divider to achieve that. I can't remember if the Gigabyte boards offer a memory multiplier that equates to that (it would need to be x3.2).
 
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