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Can't keep 1055T stable at 4.2GHz

post #1 of 9
Thread Starter 
FSB: 300MHz,
CPU: 4200MHz,
NB: 3000MHz,
RAM: 1600MHz - CL7-8-7-22-28
CPU VCCore: 1.55V
CPU-NB: 1.45V
NB: 1.2V
DRAM: 1.71V
CPU PLL: 2.58V

C1E - Virtual Machine - Cool n Quiet is disabled

I run Prime95 for a couple of minutes and it will fail on the core's without the BSOD... I do get the occasional BSOD when doing application work.

What should I be doing? I can get 4.0GHz just fine with no problem's but 4.2GHz seems to be the wall :/
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post #2 of 9
Ummm.. not much of a surprise. I had a 1055T and couldnt get 4.2. So after some time trying I tried 4.1, thinking I could hit that easily, and couldnt even do that! 4.0 was max it got. I only had a CM Hyper 212 then though.

Those were stable settings though. I could bench it on Vantage n stuff at 4.2ghz.

PS. I would try bumping up cpu-nb to around 1.30-1.35v though.

sorry, read wrong you are higher then that.
Edited by Chuckclc - 3/6/11 at 2:13am
post #3 of 9
Thread Starter 
Quote:
Originally Posted by Chuckclc View Post
Ummm.. not much of a surprise. I had a 1055T and couldnt get 4.2. So after some time trying I tried 4.1, thinking I could hit that easily, and couldnt even do that! 4.0 was max it got. I only had a CM Hyper 212 then though.
I have the XSPC Rasa kit and my CPU's max load tempature is only 43C under full load with Folding @ Home which is now currently running at 4.0GHz

EDIT: Yeah, 4.2GHz is easily benchable and get some decent scores
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post #4 of 9
Quote:
Originally Posted by Atomfix View Post
I have the XSPC Rasa kit and my CPU's max load tempature is only 43C under full load with Folding @ Home which is now currently running at 4.0GHz

EDIT: Yeah, 4.2GHz is easily benchable and get some decent scores
I think its just a wall on those bad boyz. I tried mine on a 790FX board and this 890FX board, no go. My 1090T hits 4.2 at 1.5v though.

But I run 4.0 24/7, at 1.4v
post #5 of 9
Limits to everything.
If it were 4.2 stable would you say 'why can't it hit 4.4?'?

Why can't mine hit 20 ghz using american cheese as TIM?
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post #6 of 9
Thread Starter 
Quote:
Originally Posted by Chuckclc View Post
I think its just a wall on those bad boyz. I tried mine on a 790FX board and this 890FX board, no go. My 1090T hits 4.2 at 1.5v though.

But I run 4.0 24/7, at 1.4v
I forgot to mention that I have 4 sticks of RAM which would put additional pressure on the Integrated Memory Controller on the CPU
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post #7 of 9
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Quote:
Originally Posted by beers View Post
Limits to everything.
If it were 4.2 stable would you say 'why can't it hit 4.4?'?

Why can't mine hit 20 ghz using american cheese as TIM?
Because I come looking for advice to see if I'm doing anything wrong
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post #8 of 9
Quote:
Limits to everything.
If it were 4.2 stable would you say 'why can't it hit 4.4?'?

Why can't mine hit 20 ghz using american cheese as TIM?
Lol, right?

Quote:
I forgot to mention that I have 4 sticks of RAM which would put additional pressure on the Integrated Memory Controller on the CPU
Have you tried 2 sticks yet? If you wanna see what you can squeeze out of it might as well. I would. Then I would put the sticks back in and run at a lower setting that works nice with CnQ enabled.
post #9 of 9
Quote:
Originally Posted by Atomfix View Post
Because I come looking for advice to see if I'm doing anything wrong
Well looking at all your stats you have pretty much reached the max on volts that you want to push anything. So it looks like you did everything right. Just do not have one of those monster chips. Still, a 42.8% over clock aint bad. Plus you got your cpu-nb up to 3.0ghz which is a nice increase.

Maybe bump your Ht Link up to 2.2-2.4ghz. Helps gpu performance a little. Just dont get too crazy could unstabalize OC.

Lol, come to think of it didnt ask where the Ht Link was?
Edited by Chuckclc - 3/6/11 at 2:23am
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