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Trouble Overclocking E8400 on EX38-DS4

post #1 of 13
Thread Starter 
I have an X3110 (Xeon version of E8400), and I'm havin some trouble overclocking it. I can hit 3.6Ghz with easy, having to push vcore to 1.26, but when I wanna go the little extra distance to 4.0Ghz, I have to push core voltage all the way to 1.35 volts. I have mushkin DDR2 800, and I had to push it to 890mhz for my CPU to reach 4.0ghz, so just in case I give it +0.20v to rule it out as a problem. Please help me reach 4.0ghz with lower voltage than 1.35v. Even with the CPU at 1.35v and the memory with +0.20v, the system is still EXTREMELY unstable, and I get BSODs.
Please help.
Thanks in advance
post #2 of 13
1.35v isn't all that much... if your temps are alright I don't see the problem. (I run much higher)
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post #3 of 13
hell dont worry about voltage untill about 1.5v then youre gettin dangerous, so as long as your temps arent bad its all cool (haha?). 8400s usually go to 4.0 real easy, just keep it steady and dont be afraid of voltage, at 1.5v your proc should still survive over 2 years, and by then itll be crap!
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post #4 of 13
Quote:
Originally Posted by Ihatethedukes View Post
1.35v isn't all that much... if your temps are alright I don't see the problem. (I run much higher)
1.3625 is the MAX before your CPU will start to degrade, and could, if it can't handle it just flat out die in months, i've seen E8400's die in a month with 1.37 volts and i've seen some die after 4 months with 1.44 volts. Depends on the chip, but keep the chip under 1.3625 if you like your money being in your wallet/bank.
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post #5 of 13
I think your system is unstable because you are pushing the ram speeds up too quickly. Lower the ram speeds, and then OC your computer. Hopefully the BSOD will go away.
post #6 of 13
45nm chips don't like high volts, I would try to keep it under 1.35v if you're running it 24/7.
post #7 of 13
Quote:
Originally Posted by Grafixs View Post
1.3625 is the MAX before your CPU will start to degrade, and could, if it can't handle it just flat out die in months, i've seen E8400's die in a month with 1.37 volts and i've seen some die after 4 months with 1.44 volts. Depends on the chip, but keep the chip under 1.3625 if you like your money being in your wallet/bank.


(I'm going on three months with 1.45v and have pushed it past 1.5v before.)
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post #8 of 13
Quote:
Originally Posted by Ihatethedukes View Post


(I'm going on three months with 1.45v and have pushed it past 1.5v before.)
My proof will be when your processor takes a silicon ***** on your Mobo

Seriously though, just search it up on google. You will find articles to provide you with enough proof.
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post #9 of 13
Need more info before I can help.Please go to the top of the page, click on UserCP and fill in your system specs.It makes it much easier to help.
What motherboard do you have?
What have you set your other voltages set to?
What are your RAM timings?
You say you set your RAM to +.20. the default for DDR2 is usually 1.8 volts, so your RAM should be at 2.0 volts. If your RAM is rated for more than that could be your issue. Some RAM should be at 2.2 volts, What RAM do you have? Could you post a link to it?
One last thing, some E8400 just can't reach 4.0, if nothing works you may have to settle for less. Just follow what the others say about staying under 1.36 volts.
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post #10 of 13
Thread Starter 
My memory is mushkin DDR2 800 5-5-5-18. Should looser timings along with boosted voltage to see if the BSODs are gone?
I was hoping that someone would say something about the FSB or northbridge voltage. Is there any need to tinker with that when overclocking?
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