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[CPU] E6750 Overclocking need help please!

Last response: in Overclocking
September 11, 2008 5:36:30 PM

Hi everyone, this is my first post..!

Alright, so with my fresh addition to my setup (OCZ Platinum XTC PC2-6400 4GB 2X2GB DDR2-800 CL5-4-4-15 DDR2 240PIN Dual Channel Memory Kit) and Vista installed, I wanted to test my overclocking capacity.

However, after a quick peak in the BIOS, I was surprised to see that all my efforts would give nothing. Sometimes I get "Overclocking failed", or the other time I just can't boot because it seems like my SATA drives won't get detected.

My FSB was set to 400 and my CMOS to 8 (wanted to reach 3.2ghz). CE1 and Speedstep disabled, along with the normal options also disabled.

Am I doing anything wrong, am I missing something?

Here is my config :

-OCZ Platinum XTC PC2-6400 4GB 2X2GB DDR2-800 CL5-4-4-15 DDR2 240PIN Dual Channel Memory Kit
-Intel Core 2 Duo E6750 Dual Core Processor LGA775 Conroe 2.66GHZ 1333FSB 4MB Retail
-Nine Hundred Antec Case
-4 Normal Fans
-1 120mm Fan
-OCZ GameXStream OCZ600GXSSLI 600W ATX12V SLI Certified CrossFire Ready Active PFC Power Supply
-Asustek P5KC Motherboard

Thanks alot in advance!

More about : cpu e6750 overclocking

September 11, 2008 5:59:42 PM

My 6750 on a ga-p35-ds3l board runs overclocked to 3Ghz FSB 375 mult 8
rock solid.This is with cpu NO VOLTAGE increase. Will your setup do this?It should. Over 3Ghz you will probably need to up your voltages.
September 11, 2008 6:33:11 PM

What else have you changed except your multiplier and your FSB ?

Could you list me the exact changes you've made in your bios please?

Thanks alot!
Related resources
September 11, 2008 6:57:59 PM

I run this CPU at 3.2ghz. on a Gigabyte board that supports 1600 FSB.
My settings: FSB 400, CPU voltage 1.31v, DDR2-800 Ram 1:1

Your MB acording to Asus supports max of 1333 FSB. 4x400=1600

Try a lower setting untill you find one that is stable. Work up from 333 not down to.
September 12, 2008 3:57:41 AM

Alright thanks, I'll check that out..

In the meantime, what do I really need to change in the memory settings?
September 12, 2008 4:42:55 PM

Alright, I'm ready to overclock but not too sure about what to change in the memory options. I won't touch the voltage settings but I'm not too sure what must be changed in the bios to make the RAM follow the o/c. This is the pattern I'm following but my RAM isn't the same one that they tested.

I run my setting with this OCZ Platinum XTC PC2-6400 4GB 2X2GB DDR2-800 CL5-4-4-15 DDR2 240PIN Dual Channel Memory Kit.

CPU Frequency 3.00 GHz (+12.8%)
FSB 375 MHz (1500 QDR)
Core Voltage Default
Memory Multiplier 2.40x
Memory Frequency DDR2-900 (450 MHz)
Memory Latency CL 4.0-4-4-12
September 12, 2008 4:50:09 PM

lower the memory multiplier to 1:1 and put 2.1V on your memory.raise FSB to 400 and with 8x multilpier.up your Vcore to about 1.4v.
September 12, 2008 5:08:34 PM

I think my mobo won't go as high as 400 FSB with this multiplier is it possible?
September 12, 2008 5:30:46 PM

if the mobo can do 400FSB then will need to list all the option in the "Cell Menu" from BIOS otherwise i cant help you!
September 12, 2008 5:35:05 PM

Cell menu? The one with the RAM and CPU settings?
September 12, 2008 5:54:40 PM

=.= of course!the place where you do the actual overclocking!><
September 15, 2008 10:49:40 PM

This is an answer for iluvgillgill and also a bump if anyone has a clue on this setup.

Here is what I see in the BIOS :

AI Overclocking
CPU Ratio Control
FSB Frequency
PCIE Freq.
DRAM Freq. (It's on auto right now, can chose from DDR2-667 to DDR2-1333mhz)
DRAM Timing Control : 5-4-4-15 is on


DRAM Static Read Control
DRAM Dynamic Write Control

Transaction Booster
Clock over charging mode

CPU Spread Spectrum
PCIE Spread Spectrum

CPU Voltage
CPU Voltage Reference
CPU Voltage Damper

Then, I have a list of voltage options, including :

CPU PLL, DRAM, FSB termination, NBridge, all voltage controls.