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Phenom II 1055T Overclocking help.. past 3.5 + Ghz.

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November 16, 2010 9:57:10 PM

I just got my Phenom II 1055T today, really happy with it, finally not my CPU bottlenecking my old 4870 anymore.. but i want to get the most out of the cpu that i can get..

Currently running
M4A78 PRO (asus)
3GB DDR2 800 2x1gb + 2x 512mb
1055T @ 3.5Ghz
NorthQ 3580 (liquid cooled cpu cooler)

I havn't had problems with the temps but i can't get it run higher then 3.5Ghz stable, i got it booting into windows at 3.82ghz but it crached when i tested it with prime 95.
Can it be something with the DDR2 rams i am running with diffrent size? it is the same rams with same speed & timing. and when i overclock to 3.8+ ghz the rams need to stay at around 900mhz, but i think think that is the problem i have been running those rams with 960mhz with my old cpu (phenom x3 8400)

Voltage @ 1.45 - 1.375

I havn't really changed anything else then the Voltage of the ram & cpu and the Multiplyer.


Anyone ? (8
November 17, 2010 12:18:52 AM

ddr2 doesn't have much room to OC you need to clock it down a step or two depending on how it ends up after your cpu boost.
November 17, 2010 8:52:33 AM

Yeah i have puted the "Devider" on the memory all the way down to 5:3 thats the lowest i can change it too on the mobo. and it still runs higher then the standard clock.
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November 17, 2010 2:46:25 PM

ranij93 said:
Yeah i have puted the "Devider" on the memory all the way down to 5:3 thats the lowest i can change it too on the mobo. and it still runs higher then the standard clock.


The only thing left you could do is get DDR201066 or a DDR# mobo. But it could also be that your CPU just isnt stable at those speeds.
November 17, 2010 9:35:10 PM

Snipergod87 said:
The only thing left you could do is get DDR201066 or a DDR# mobo. But it could also be that your CPU just isnt stable at those speeds.

If i can't get it higher then 3.5Ghz i won't go any higher i think its fast enough, but i've seen some reviews that it pushes up to 4Ghz + on air. :) 
November 17, 2010 9:37:46 PM

I need to ask you guys one more question. I have my NB clock at 2500 mhz and puted my HT clock at 1800-2000 mhz and when i boot up the HT link always is running at the same speed as the NB so i can't set the HT link to stay at 2000, if i put the nb at 2800 the HT runs the same speed.. Anyone knows what that could be?
!