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Old 04-21-08, 10:21 AM   #25
Revs
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Default Re: New E8400

The bottom line on the E8400 IMHO is; 3.6Ghz is a good, 'safe' OC that will keep everything within limits. 4.05Ghz is very easy to achieve and stays well within temp limits but not voltage limits. Over 4.05Ghz and you have to crank the voltages up to what I would say are totally unsafe levels. I got 4.275Ghz without too much effort but the vCore and VTT, etc, were far higher than is safe for regular use. At these speeds this little 2core CPU will kick out as much heat as a Q6600G0 at 3.4Ghz. There's a big jump from 4.05Ghz to 4.275Ghz heat and voltage wise and isn't anything like worth the risk to your PC.

The only question you should be asking is how much do you want to push you luck?!
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Old 04-21-08, 03:15 PM   #26
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Default Re: New E8400

yeah its true, I didnt see any significant difference between 3.6 and 4.05 in terms of performance. But my temps dont change much with the overclock, so I am going to stick with the higher clocks.

what are ur temps like after a 12-14 hr orthos test. Mine's 60+ degrees C.
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Old 04-21-08, 09:20 PM   #27
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Default Re: New E8400

Quote:
Originally Posted by tornadog
its going great at 4.05 Ghz. No crashes. Temps are staying in the 33-38 range at idle. Ran 3dmark06 and temps went to about 52 degrees. I dont know if it was higher during the test. I could see the temp reading only after the last test completed. the vcore is staying stable at 1.408V

I am using the thermal pad that came with the cooler though I messed it up quite a bit trying to get the push pins through the motherboard holes. I dont know if it made any air pockets, but so far I dont see anything that causes me concern. I have AS5, and maybe I will try it out this weekend and see if I can get my vcore down to about 1.35 or so.
The stock thermal grease on the Freezer 7 is the MX-2, which is better than AS5.
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Old 04-22-08, 05:28 AM   #28
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Default Re: New E8400

I'm up to 3.6ghz which is a modest overclock, but I don't want to push it any further until I have something better than the stock cooler. I had to bump the voltage to 1.3v in the BIOS but with Vdroop I'm only getting around 1.20-1.26v in windows. I'm not that keen on having to push the FSB soooo much and then possibly putting extra voltage into it, for another 400mhz. But I will probably try.

I wonder now how well my vidcard can overclock.
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Old 04-22-08, 02:27 PM   #29
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Default Re: New E8400

Quote:
Originally Posted by tornadog
yeah its true, I didnt see any significant difference between 3.6 and 4.05 in terms of performance. But my temps dont change much with the overclock, so I am going to stick with the higher clocks.

what are ur temps like after a 12-14 hr orthos test. Mine's 60+ degrees C.
My temps seem to peak at 59C after running Orthos several hours using RealTemp. I'm at 1.35 volts.

I'm real happy with the overclock. 4.05GHz for a chip that was $180 is kick ass!!
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Old 04-22-08, 02:54 PM   #30
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Default Re: New E8400

Quote:
Originally Posted by tornadog
yeah its true, I didnt see any significant difference between 3.6 and 4.05 in terms of performance. But my temps dont change much with the overclock, so I am going to stick with the higher clocks.

what are ur temps like after a 12-14 hr orthos test. Mine's 60+ degrees C.
Damn that's high! For me anyways. I don't overclock and have a Zalman fan and Arctic Silver 5. About 35 on load.
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Old 04-23-08, 02:33 PM   #31
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Default Re: New E8400

Quote:
Originally Posted by tornadog
just a quick note. The compound that comes with the Arctic Freezer 7 Pro is very good. I removed it and applied AS5 and found zero difference in temps or overclockability. There goes 1 hour of my life wasted!!!!
Is it possible to use the Arctic freezer compound on more than one processor? Like on CPU x then upgrade to CPU y and still use the same compound that came with the heat sink?
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