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Core2 Duo E6400 @3.2GHz

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January 30, 2007 3:30:30 PM

Gigabyte GA965P-DS3, Intel 965P, PCIe x16
Intel Core2 Duo E6400 2.13GHz 1.325v 1067MHz FSB
2x512MB Nanya DDR2-800 CL5 5-5-12 1.8v
Inno3D GeForce 6600 256MB DDR2 350/700
2x160GB Maxtor 7200RPM 8MB SATA
Creative Labs Audigy2 6.1
Deluxe Silent 420W continuous ATX PSU


CPU:



CPU cooler:


mainboard:




ATX case:





THE OVERCLOCKING:

CPU: 3.2GHz @1.4675v (8x400MHz), air cooling
FSB: 1600MHz, northbridge +0.2v, active fan added
GPU: 525MHz/835MHz, replaced stock cooler with AL two panel


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More about : core2 duo e6400 2ghz

January 30, 2007 4:49:46 PM

Nice OC, but it looks like u may have put to much themal paste on there. Just seeing it on the clip that hold the processor in scares me. One little drop of that in the wrong spot on your mobo can toast it.

Here is my best stable oc with the samne board and same cpu as you


Tho my temps got a little above 60c that high

So i left it at what it says in my sig =)
January 30, 2007 4:57:37 PM

Wow, MrsBytch converted to Intel.. :p 
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January 30, 2007 5:27:04 PM

There is not a lot of paste, there is only a thiny layer applied. It just looks like that on the pic.
I pushed my C2D to 3.4GHz(8x450) using 1.5v, but it is not stable. I suspect that my power supply is not enough powerfull, because people are geting better OC's. I have also two optical devices and a TV/FM Tuner attached. So what do you think?

BTW, your OC is awesome.
a b à CPUs
January 30, 2007 11:52:36 PM

Quote:
There is not a lot of paste, there is only a thiny layer applied. It just looks like that on the pic.
I pushed my C2D to 3.4GHz(8x450) using 1.5v, but it is not stable. I suspect that my power supply is not enough powerfull, because people are geting better OC's. I have also two optical devices and a TV/FM Tuner attached. So what do you think?

BTW, your OC is awesome.


What stepping is your CPU? IF it is 6 (the latest) then you should lower that Vcore before you fry the thing before its time!
Mine is a E6400 stepping 6 and does 3.32GHz on 1.37V. Can do more, but its getting a bit to the warm side and i like keeping things cool. Also try raising the Northbridge voltage before the CPU's. It helps the CPU overclocking without risking your processor. Northbridge chips can tolerate more heat.
January 31, 2007 11:30:09 AM

That is too high a voltage and temp. I think your problem is you put too much paste on too. You should only need in the 1.375 range to get 3.4 ghz even.
January 31, 2007 12:48:46 PM

Quote:
Quote:
There is not a lot of paste, there is only a thiny layer applied. It just looks like that on the pic.
I pushed my C2D to 3.4GHz(8x450) using 1.5v, but it is not stable. I suspect that my power supply is not enough powerfull, because people are geting better OC's. I have also two optical devices and a TV/FM Tuner attached. So what do you think?

BTW, your OC is awesome.


Hehe well correct me if im wrong buy isnt 450x8 = 3600?
Also update your bios man, F9 is the newest i believe.
I agree with the post above as well. You should be able to reach 400fsb with a vcore below 1.4. And you shouldnt need to touch your GMCH of FSB Voltage(leave them at normal) at all at that point.
January 31, 2007 10:13:50 PM

your vcore is high, i use 1.35v at 3.2 ghz
February 2, 2007 10:38:17 PM

My CPU is not stable at 3.2GHz at lower voltage. I've tried all variants with increased FSB and chipset voltage, but it didn't helped.
Two days ago I changed the CPU cooler. Now I have the temperatures reduced for about 10'C at idle and at 100% load.




This didn't improved the stability of my OC-ed E6400 at lower voltage.
So, is there any possibility that my PSU is not good enough and it causes the instability at lower voltage?
February 3, 2007 4:41:28 AM

How did you get your CPU temps so low?
Use special thermal grease?
February 3, 2007 4:46:11 AM

Hi
What temps do you get with your E6400 # 3.3 Ghz? idle and full.
thanks . I have a good heat-sink, so I am looking how else I can improve and what is normal.
Thanks!
February 3, 2007 10:33:32 AM

With my new cooler(able to cool a 160W CPU), at 3.2GHz with TM2, EIST & C1E dissabled, the idle CPU temperature is 25'C. After 30minutes at 100% CPU load, running 2 threads of Prime95 CPU torture, the temperature is 45'C
a b à CPUs
February 4, 2007 10:10:41 PM

Your CPU seems to be stepping 6, the latest so far. Hence it should be able to hit higher speeds at lower voltages. What seems to be the culprit of holding you back, must be the motherboard. Update to the latest BIOS and try higher Northbridge voltages.
February 5, 2007 9:55:24 AM

I allready upgraded the BIOS to the latest, F10. But that didn't helped. I tried higher FSB & northbridge voltages, but didn't helped :(  My C2D @3.2GHz is not stable at lower voltage than 1.46. I will try with better PSU
a b à CPUs
February 6, 2007 2:52:46 AM

Quote:
I allready upgraded the BIOS to the latest, F10. But that didn't helped. I tried higher FSB & northbridge voltages, but didn't helped :(  My C2D @3.2GHz is not stable at lower voltage than 1.46. I will try with better PSU


That sounds very bizarre. Check your memory dividers, maybe you are using a one too high and its that. Other than that, it could be either your mobo's limitations or your CPU not of good quality although newest stepping.
!