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I just don't get it! (Trying to OC my E8400!)

post #1 of 37
Thread Starter 
So, last night, I read this article: http://www.legionhardware.com/document.php?id=717

On the 2nd page, it is written:
Quote:
Due to the E8400 using a 9x clock multiplier, it is simply a matter of adjusting the CPU FSB to 400MHz in order to reach 3600MHz. For stability reasons we recommend you manually set the 'PCI Express bus' frequency to 100MHz when overclocking. Depending on the memory you are using, we also suggest setting the memory multiplier to 2x, which on a 400MHz FSB will result in a memory speed of 800MHz. Given that most use DDR2-800 memory, this will ensure that the system remains stable.
So, I put this settings in the BIOS with the exception of the multiplier. I was only able to find one multiplier, not two as he lists there: clock and memory. Are there two or am I just blind? I only found the clock one, set at 9. It doesn't go lower than 6.0. So, I left it as it.

I rebooted. My machine was running at 3.6GHZ. I used OCCT to test the stability. Under a full load, the processor got too hot. OCCT told me that around 95-degrees.

I don't know what to do.

My BIOS is Phoenix Award something or other.
I can find the FSB, Clock Multiplier, etc. controls. I've tweaked my memory timings; my OCZ DDR2-800 RAM runs at 4-4-4-15, and it runs stably.

Oh, for CPU cooling, I use an Ultra ChillTEC. Shouldn't that thing keep the CPU insanely cool? That's why I spent the $130 on the damn thing.

Any help would be appreciated.
Edited by Seire - 6/20/08 at 9:51am
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post #2 of 37
Have you changed the voltage from Auto to Manual? I had this when I first overclocked - on Auto, according to HMMonitor, I was running at 1.45V when I OC'd from 2.66 to 2.8GHz!
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post #3 of 37
Thread Starter 
Quote:
Originally Posted by chemicalfan View Post
Have you changed the voltage from Auto to Manual? I had this when I first overclocked - on Auto, according to HMMonitor, I was running at 1.45V when I OC'd from 2.66 to 2.8GHz!
That's one of the things I don't get. To what would I change it?
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post #4 of 37
Welcome to OCN, Seire. Are you new to overclocking? If you are, I'd recommend ocing your sig little slower. The temperature seems to be very hot. Declock to stock settings and post the pics of HW Monitor, CPU-Z and Real Temp.

Edit: the reason is, to check if everything has been situated properly.
Edited by legendor - 6/20/08 at 9:56am
    
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post #5 of 37
Quote:
Originally Posted by chemicalfan View Post
Have you changed the voltage from Auto to Manual? I had this when I first overclocked - on Auto, according to HMMonitor, I was running at 1.45V when I OC'd from 2.66 to 2.8GHz!
I agree with chemicalfan, the voltage is being set way too high. Set it manually to 1.275v vcore and see if that works. Also, if you run CPU-Z, it will show you the vcore for the CPU. If it is set to auto in the bios, it can be really high.

Also note that the max vcore for the CPU that is generally accepted as the max safe vcore is 1.3625v.
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post #6 of 37
Quote:
Originally Posted by Seire View Post
So, last night, I read this article: http://www.legionhardware.com/document.php?id=717

On the 2nd page, it is written:


So, I put this settings in the BIOS with the exception of the multiplier. I was only able to find one multiplier, not two as he lists there: clock and memory. Are there two or am I just blind? I only found the clock one, set at 9. It doesn't go lower than 6.0. So, I left it as it.

I rebooted. My machine was running at 3.6GHZ. I used OCCT to test the stability. Under a full load, the processor got too hot. OCCT told me that around 95-degrees.

I don't know what to do.

My BIOS is Phoenix Award something or other.
I can find the FSB, Clock Multiplier, etc. controls. I've tweaked my memory timings; my OCZ DDR2-800 RAM runs at 4-4-4-15, and it runs stably.

Oh, for CPU cooling, I use an Ultra ChillTEC. Shouldn't that thing keep the CPU insanely cool? That's why I spent the $130 on the damn thing.

Any help would be appreciated.

Some BIOS don't use a memory multiplier as they allow manual memory clock adjustments.

I don't really know the E8400 or that motherboard that well but I could imagine at least a slight bump in voltages will be needed.

The high temperatures could be linked to your vcore set to auto, in which case it might be adjusted much too high in order to achieve 3.6GHz.
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post #7 of 37
Thread Starter 
Quote:
Originally Posted by legendor View Post
Welcome to OCN, Seire. Are you new to overclocking? If you are, I'd recommend ocing your sig little slower. The temperature seems to be very hot. Declock to stock settings and post the pics of HW Monitor, CPU-Z and Real Temp.
Yep. I'm new to OCing. Actually, I'm new to PCs in general. Was previously a Mac user for over 14 years, zomg! Last Mac was the 2.66 Quad Core.

Anyway...

I de-clocked it back to stock settings last night for fear of frying my hardware or w/e.

I'll take the SS's from those 3 apps and post them.
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post #8 of 37
Check out OCCT - it is a great tool. The only one I use now (well, except CPU-Z, but that's for info really). You need Speedfan & HWMonitor as well though, for their drivers.
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post #9 of 37
Thread Starter 
I used OCCT, which told me that my comp was running too hot. I ran an hour stability test, and in the first 3-5 minutes, it came back telling me my cpu was running too hot.

I'm at work right now, but when I get home, I'll do what you folks asked and post it in the thread.

I'm not looking for an insane OC, but I think that anywhere from 3.6 to 3.8 ghz is reasonable.

Also, with the multiplier question, is the range from 6.0 to 9.0 sufficient? Does the multiplier depend on the BIOS version? MB?

Lastly, with regards to my cooling ChillTEC - is that a good unit to have for CPU OC cooling?
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post #10 of 37
Is the cooler seated properly, that seems too high. Set voltage manually to 1.3v to start with. Also realtemp is reputed to give correct temps for 45nm processors (some monitoring tools do not detect the temp correctly.)
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