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Trying to get higher clock with pentium dual core

post #1 of 6
Thread Starter 
I don't hear much about these e5800's..well i have one. and i have it overclocked to 3.8ghz 400*9.5.

i tried to get to 4ghz and it wouldn't stay stable in windows. i bumped up vcore by 3 notches to 1.375v from 1.3475v. then that didnt work so i bumped up the mch to 1.3volts. still wouldnt be stable.my temps are fine. this isn't the most it can overclock to right? 3.8ghz? - and i dont even know if my 3.8ghz is stable i haven't had a full chance to try it with prime95. iv played games like fallout new vegas for 20 minutes and it was fine, and for 10 minutes in prime but i havent had a 10 hour trial with prime lol. any ideas
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king
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post #2 of 6
It took my E5300 1.45V to get 4Ghz.
It took very little voltage change to get from stock clocks to 3.6Ghz, but anything after that required a TON of voltage.

For example. To get from 4Ghz to 4.21Ghz it took 1.5V's.
You might want to bump the voltage a bit more. Don't be afraid to.
But you might also be running into a FSB wall with your board.
Is that the highest multi for your chip?
post #3 of 6
Thread Starter 
yea my board only supports 400mhz fsb. so now im on to the multiplier. Damn 1.45v..Alright will give a shot at it..this thing wont blow up will it? not overvolt and fry or anything?
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post #4 of 6
Quote:
Originally Posted by kingkoopa95 View Post
yea my board only supports 400mhz fsb. so now im on to the multiplier. Damn 1.45v..Alright will give a shot at it..this thing wont blow up will it? not overvolt and fry or anything?
Officially Intel says 1.365V's.
But I would recommend staying around 1.4V's with good cooling.
The max for 45nm chips is 1.45V's.

Though I ran my chip at 4.2Ghz@1.5V's for quite some time. Granted, this was under water so temps never were above 45C.

Set the multi to the highest and set your FSB and up the voltage.
If you're new to OC'ing. I suggest you check out this guide.
http://www.overclock.net/intel-cpus/...-core-2-a.html
post #5 of 6
why don't you just set the fsb to 250 x 16? that E5800 has 16 multi.
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post #6 of 6
Yeah I'd keep the fsb at or below 350. Thats where my E5200 seemed most comfortable.

:edit:
and like mbudden said, it's usually good to start out with the max multiplier when you're working with those 200mhz fsb chips
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