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Help E6400 will not oc

post #1 of 22
Thread Starter 
I have my e6400 running at 2.9 Ghz without any voltage tweeks so it wouldnt be to much to expect it to run at 3.00Ghz with upped voltages but it wont. the pc posts everytime but windows will not boot no matter what i try. my old processor was an e4500, i ran that at 3.2Ghz no problems but the FSB wasnt high enough to take advantage of the speed of my ram thats why i so desperatly want this processor clocked to at least 3.00Ghz.
Kingmaker
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Kingmaker
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post #2 of 22
Is your RAM manually set to stock speeds? Have you increased vNB at all? To get past 3GHz on my P5N-E I had to increase the NB voltage some...and even more to get it over 3.2. If 1.56v doesn't get you where you want, then someone else is wrong.

edit: someTHING else is wrong... lol
Edited by TriBeCa - 5/28/08 at 12:34pm
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post #3 of 22
Yah, I kicked my vCore up to 1.55 and my northbridge to 1.5 and I was able to get to 3.2 on my E6420. Just make sure you have a good cooling solution.
Icefoam
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post #4 of 22
Thread Starter 
my ram is set to cstock speeds (800Mhz) ant timings at the moment on auto, i wanted to push the processor as much as possible before messing with the ram.
The north bridge hs on my board is almost too hot to touch without messing with voltages but my processors fine my freezer pro keeps at aprox 35c at full load
Kingmaker
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Kingmaker
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post #5 of 22
Thread Starter 
Cheers guys im at 3.00Ghz now, ill see how far i can get on my own from here
Kingmaker
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Kingmaker
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post #6 of 22
set your ram to stock timings manually... leaving them on auto will almost definately set them too loose, which can cause instability. auto does not equal stock.
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post #7 of 22
Whats P5N E SLI Plus is that the updated motherboard
post #8 of 22
Thread Starter 
Thanks again, ill have a play with my ram.
i have set my vcore and nbv to 1.5, and got 3.00Ghz but wont go any further at that voltage settings, i kinda figured with that sort of voltage tweek i should be getting a bit more than another 100Mhz out of my processor as my original overclock with no voltage changes was stable (orthos for 6hrs) at 2.90Ghz
Kingmaker
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CPUMotherboardGraphicsRAM
E6400 Asus P5N32-E SLI Plus 2x 8800GTS 320Mb Sli 4Gb corsair xms2 CL4 
Hard DriveOptical DriveOSMonitor
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G15 Hiper 730W Cheep S**t Microsoft Sidewinder 
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Kingmaker
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CPUMotherboardGraphicsRAM
E6400 Asus P5N32-E SLI Plus 2x 8800GTS 320Mb Sli 4Gb corsair xms2 CL4 
Hard DriveOptical DriveOSMonitor
2x 450 Gb RAID Stripe Pioneer DVD RW Vista 32bit 20" Dell 
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post #9 of 22
Froogie Cool what Bio are you running at the moment.
post #10 of 22
My P5N-E has an FSB hole around there, and the 680i chipset has holes too. It might just be a hole...try posting at higher speeds with those same settings.

One thing that's usually worth doing on chipsets that have FSB holes is FSB overclocking, where you manually set your CPU multi to 6x and voltages to close to the max you'll tolerate, and just see what speeds will POST. That'll show you exactly where your holes are.
Work Rig
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OCZ 240G Vertex 3 SSD Seagate SV35 Series 3TB Seagate SV35 Series 3TB Corsair H100i 
OSPowerCase
Windows 7 Enterprise x64 Corsair 860W 80+ Platinum Cooler Mster Cosmos II Ultra 
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Work Rig
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CPUMotherboardGraphicsRAM
3930k ASUS Sabertooth X79 TUF EVGA GeForce GTX 660 Patriot Viper 3 Intel Extreme Masters 1866MHz 
Hard DriveHard DriveHard DriveCooling
OCZ 240G Vertex 3 SSD Seagate SV35 Series 3TB Seagate SV35 Series 3TB Corsair H100i 
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Windows 7 Enterprise x64 Corsair 860W 80+ Platinum Cooler Mster Cosmos II Ultra 
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