Best overclocking setup with E6600 2.4Ghz and DDR3 1333

[Janya]

My system has Intel core 2 Duo E6600 installed on the Asrock G41M-S3 MotherBoard. The motherboard specs says that it can support memory modules only up to 1333Mhz. More than this, system may become unstable. I have a Corsair 1333Mhz RAM installed right now. How Can i overclock the processor now? what setting should i need to be followed in this case?

[Lyalisai]

Actually I don’t have much knowledge about overclocking on Asrock motherboards but still wanted to help.It seems like you have a chipset with limited FSB. The limit of the recent models such as E6600 is about 4 Ghz. Try your memory settings off and choose the RAM clock multiplier of 4X. If you configure the FSB freq to 266 MHz, you will get the1066 MHz as memory clock. When you look into the CPU-Z, you will notice that the system is running at a 1:1 FSB:RAM ratio. Now increase the FSB as well as the CPU voltage.

If you have decent cooler and if you have increased the FSB freq to 300 MHz, you don’t need to increase CPU voltage. With a good cooling system, you can reach at least to 350 - 360 MHz. In order to keep the temps under 70 C, do not exceed CPU core volts to 1.45 volts.

[Bryant]

Actually I don’t have much knowledge about overclocking on Asrock motherboards but still wanted to help. It seems like you have a chipset with limited FSB. The limit of the recent models such as E6600 is about 4 Ghz. Try your memory settings off and choose the RAM clock multiplier of 4X. If you configure the FSB freq to 266 MHz, you will get the1066 MHz as memory clock. When you look into the CPU-Z, you will notice that the system is running at a 1:1 FSB:RAM ratio. Now increase the FSB as well as the CPU voltage.

yeah, i guess you are right because as per me too ratios for a Core 2 Duo processor is either 1:1 or 1:2. However if you run the CPU & RAM a default speeds, the ratio would be 1:2. The ratio is always calculated on the basis of frequency, not by the QDR & DDR ratings. I mean if your CPU is set to 1066MHz FSB, it will run at 266MHz frequency.

On the other hand the DDR2-1066 runs at 533MHz frequency. So this would be 266:533 = 1:2. In order to overclock your process up to 3.0GHz, you have to increase the CPU frequency to 333MHz. Same way the RAM(DDR1333) frequency would increase to 667MHz. I don’t think that DDR2-1066 RAM will be able to run at this speed and due to this system will not boot at all.

[CAMDEND]

The ratio is very important in such cases and in terms of overclocking. The 2 ratios should be considered optimal for a Core 2 Duo (or Core 2 Quad) system. It is based on frequency only.

• If CPU === 1333MHz FSB (333MHz frequency, the RAM should be === DDR3-667 (333MHz frequency) for 1:1 ratio.
• If CPU ===1600MHz FSB (400MHz frequency), the RAM should be ====DDR3-800 (400MHz frequency).

If your FSB is faster, you will surely get the better performance out of the box and an ideal overclock setting of CPU is at 7.5 x 400MHz and RAM underclocked to DDR3-800. Once the system is overclocked properly, you should stress test the system by using appropriate software.

[Mr. DR]

Can you tell me which E6600 processor you are actually using? I mean is it 45nm or 65nm? In order to speed up the 65nm processor, you will need too much VCore and the way too much for 45nm. You should first start with default (stock) VCore and go back to 2.7. Make sure to change the 1.35 and Termination to 1.2-1.25. Set the ICH on default. As per your RAM, you should set the voltage for memory and also change the DRAM frequency. Finally boot up the computer and check the RAM speed with CPUz. After that you should start adding 100MHz to the CPU until you see the BSOD or first boot problem. After that only you should start increasing the VCore. Make to check the RAM speed all time during each single processor each single change you made.