Originally Posted by allikat
You're slightly wrong there Compuman, AMD's PhenomII has the memory controller on die too, just like your 920. The voltage for this memory controller is usually listed as CPU-NB in the BIOS. With 4 sticks of 4GB memory, the OP is seriously limited for overclocks. Adding significantly (.1 to 0.2v) to the CPU-NB voltage will help if you want to wind up the chip.
New-boy question... what is OP? and to help with over clocks when using large RAM numbers i should increase Voltage to the CPU-NB?
I'm hoping i have understood and reworded what you had said, as i am just making sure ive understood it!
Originally Posted by willibj
To the OP: overclock your NB as well.
Aim for 2600mhz or higher. 3000 is golden.
To achieve this, your CPU-NB volts will need to be increased. Anywhere up to 1.35v is fine for 24/7. Some people say higher. I doubt you'll need it. Running that many sticks (4 sticks of RAM stresses the memory controller more than 2 sticks) requires extra voltage regardless, so use the headroom you have in voltage to help stabilize.
Also, you may need to raise your NB volts (not to be confused with CPU-NB volts). These sometimes help stabilizing things, but only go up to 1.3 (shouldn't need more).
How are your CPU temps?
This should see you up around 4ghz.
Also, is your processor C2 or C3 stepping? C2 chips can be limited in overclock headroom comparatively and are running at slightly higher TDP. This will affect your overclock on the core and northbridge.
I guess OP means original Poster then?
My system generally idles at 29C and underload (by load i just mean when i use it to play games etc) it gets to 44. obviously this depends either way depending on the temperature of my room.
As for stepping, not sure, is there a way i can easily find out?
would you recomend just dropping to 2x4GB? would this help enough? or are the extra 2 sticks not making enough of a difference? (if that makes sense) Basically does double the sticks = double the stress?
Originally Posted by compuman145
Ah fair enough,
As I said I wasn't 100% sure on AMD's and their overclocking, I know the theory kind of but i'm far from great at it.
Im greatful all the same, i still learnt thigns
Originally Posted by chrystal
I have the very first 955be 140 w edition,guess 4ghz is "easy" with the newer ones :-P
All the extra cooling besides my kÃ¼hler, is a 120mm side intake fan on the chassis :-)
Sorry didnt see you post originally:
I am pretty sure that this might be one of the first ones too, not 100%. The highest i have got it stable was 3.8, this said, i may have been missing out a few huge steps. to be honest... Im amazed the thing still works! As i have found otu, kinda of not the thing u should jump into the deep end with.
Also i would like to take this opourtunity to apologise to all, for any idiotic or purley stupid questiosn/comments, this is a great help, im learning a lot... i think i might stay Edited by Lanic - 10/18/11 at 8:26am