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Overclocking E6700 w/ GByte GA-G4MT Es2L

Last response: in Overclocking
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April 30, 2011 10:45:44 PM

I’m hoping for some advice on squeezing more juice out of my GByte GA-G4MT-ES2L mobo and Intel E6700 Core 2 Duo rated at 2.67GHz. I’ve hit a wall at 3.2GHz, so I’m looking for help from someone familiar with the particular settings on this mobo family since it has special settings that appear to want to “automate” the OC’ing process. If I raise the clock to 330MHz, I get one core failing Prime95 within a few seconds. At 320 it’s solid for hours. This is all at stock vcore. I raised vcore to 1.4 with no improvement but according to Coretemp it remains locked at 1.325 and CPU-Z reports it even lower. I realize the EIST feature drops vcore at no/low load, but even with EIST disabled, I can’t seem to raise vcore.

ALSO, CAN SOMEONE PLEASE PROVIDE A LINK TO THE C2D OVERCLOCKING GUIDE I’VE SEEN REFEENCED HERE? CAN’T FIND IT….THANKS.

Specs: E6700 Core 2 Duo rated at 2.67GHz, 1.325V nominal vcore, RAM Corsair DDR3 4G PC1333MHz dual CAS9 (targeted at Intel i5 and i7 so exceed needs of a stock E6700)

Current stable OC setup settings:
Clock = 320MHz
PCI-E=100MHz
Robust Graphics=Fast
DRAM Performance Enhancement (auto DRAM overclock)=Extreme
System Memory Mult=4.00A
Vcore=1.325=nominal default
EIST enabled
All other settings at factory defaults

Failing OC settings (Prime95 5 sec. failure):
Bump clock to 330MHz (325 fails too)
PCI-E=100MHz
Robust Graphics=Fast
DRAM Performance Enhancement (auto DRAM overclock)=default (1333 MHz) OR = Extreme…makes no difference
Vcore set=1.4V but Coretemp shows vid=1.325V and cpuz shows 1.264V at full load
EIST enabled

Any suggestions? I’m hoping to get it to 3.6GHz or so. :bounce: 

Thanks for taking a look!

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May 1, 2011 1:38:47 AM

This should be your first stop.
Core2 Overclocking Guide
http://www.tomshardware.co.uk/forum/259899-11-core-over...

Shadow's Gigabyte motherboard OC guide:
http://www.tomshardware.co.uk/forum/page-245679_11_0.ht...
It's for an EP35-DS3L but all the Gigabyte Core2 BIOS's are similar.

Your VID (1.325 volts) is unusually high.

Keep your 4.0 mem multiplier.

You should be able to push the FSB freq up to around 350 MHz. The G41 chipset generally will not run past that.
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May 1, 2011 2:32:41 AM

OK, thanks. I'll check these out and see where it leads. The 1.325 vcore appears to be factory default or nominal. The data sheet max range is .85 to 1.5.
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May 8, 2011 3:14:56 AM

Best answer selected by pcguy9441.
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