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Stuck at 3.7 Ghz - Page 2

post #11 of 27
Quote:
Originally Posted by pbasil1
ok ive got it up to 3.74... lol not really any improvement, but if i go past 250 fsb it becomes unstable in prime 95
CPU temps are what load? And what are your Mosfet temps (idle + load)

With that board and a prescott, your probably running into vcore droop.. Common with running High FSB's with prescotts on Springdale chipsets. I agree with spooky, your probably going to need some volt mods..

My last guess would be cranking up the AGP voltage.. Somewhere in the 1.6-1.65v range.. (1.6v 1st and then 1.65v second) and see if that works.
    
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post #12 of 27
Have you tried running CAS 4?
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post #13 of 27
very hard to get 4.0....try upping your vcore to 1.5 and your vdimm to 2.75
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post #14 of 27
I got a Precott 3.0 on an Asus mobo up to 3.9 stable. When I was runninng PC 3200 the best I could get was about 3.6 @ 1:1 or with a divider. I purchased PC4000 and it immediatley went 3.9 with no other changes @1:1. I personally think it is your memory holding you back. Many people have a 3.0 running 3.9 and a few have it at 4.0. By the way the rig in my signature is the one that I have @3.9 it is nothing special air cooled and all but it did OC nice. You already are doing well with 3.7 but I think you can go further.
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post #15 of 27
Thread Starter 
ok so how do i check my mosfet temps? and i have upped my vcore to over 1.53 volts and doesnt help... i run ~56-58c load,and why would upping my agp voltage help?... also running a 5:4 diveder doesnt help....

thanks for your responses so far guys!

cpuz and speed fan...

grrrrrrr i give up....

i also posted a pic of my bios...

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post #16 of 27
Thread Starter 
bumpedy bump..... need help!!!
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post #17 of 27
With the Prescott on 478 and air you have already made a fair overclock. I don't know anyone who has made 4.0 with P4E and 478 on air.

It's possible though I guess. I've just never seen it. It took me to 6xx series on air and 775 to make 4GHz+.

R
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post #18 of 27
Thread Starter 
ya i understand this.... but it just seems like it wants to go further but something is holding it back....

I WANT/NEED 4GHZ!!!
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post #19 of 27
You need a better cooling, you need to keep your load temps below 55c. after that instabilty starts to accure.
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post #20 of 27
Thread Starter 
any other suggestions... please

bios settings, something holding me back? ideas... please!


thanks so far guys!!!
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