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Help me get to 4.0ghz E8400! - Page 4

post #31 of 37
You and me are in the same boat man , dont feel bad . Well get there with some more tweaking.I havent even had it a week , and im at 3.9 stable , so I am happy.
post #32 of 37
Thread Starter 
UPDATE!:
I am currently semi-satisfied with my overclock.
I am 12 hours stable *screen shots soon* at 3.9ghz dual core 1.368 load 1.371 idle
I guess i can deal with this since its only 100mhz from 4.0ghz but that 100mhz requires like .10 fricking volts!
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post #33 of 37
Yea that jump to 4.0 takes more volts then im comfortable supplying. I wanted 4.0 so bad also , maybe later on in its life when its time for new proc , and nearing total outdatedness.
post #34 of 37
What are your GTL voltages at?

Quote:
Originally Posted by RussianGrimmReaper View Post
1.336v is what the CPU is getting at load, don't let that go above 1.45.
I experienced mild degradation (in under a week) in my E8400 experiments with a load voltage of below 1.38v and a BIOS voltage of 1.41v. Adding another .05 accelerated degradation.

I caught it early and the chip still works fine, but the max OC I can achive with safe volts went from 4.05GHz to 3.75-3.8GHz.

Quote:
Originally Posted by G|F.E.A.D|Killa View Post
that is a pretty high vcore for that overclock. did you try 4.0 at that vcore. and yes there is a vdroop on that board. you have to do the mod.
voffset and vdroop are there by design, and removing them rarely helps. More often than not it's safer just to increase the bios voltage setting than to remove the vdroop.
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post #35 of 37
Thread Starter 
Please explain GTL voltages so i can answer appropriately.
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post #36 of 37
GTL voltages are the singaling voltages for the type of FSB Intel uses. 65nm chips tend to like this voltage to be around 67% of the vcore, while the 45nm chips prefer 61-63%. there is a good bit of variation so playing around with settings near that can be helpful.

61% was noticeably better on both of my E8400s than 63%.

Quote:
Originally Posted by RussianGrimmReaper View Post
Intel states that anything over 1.45v(through the CPU, not in BIOS) will damage it. 1.365v is normal operating voltage.


1.45v is the absolute limit, and voltages between 1.3625v and 1.45v (at least at common temperatures) are very likely to damage the chip, according to Intel.

If you set you voltage to 1.45v in the bios, surges when coming off loads are sure to reach, or exceed this voltage slightly, even with a working vdroop.

If you remove vdroop, you can shoot way past the absolute limit, even if you have the voltage set around ~1.4v.
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post #37 of 37
Thread Starter 
my voltage in bios is only 1.383 so even if it shoots past, it wont be in a BAD zone.

Also my volts for fsb is 1.35v
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