Sign in with
Sign up | Sign in
Your question

I'm finally gonna OC my Amd Phenom 2 x4 955 but have no Idea how......

Last response: in Overclocking
Share
June 1, 2012 1:29:34 AM

I've decided that it's time to OC my CPU after realizing it's holding me back in some games. The thing is, I have absolutely no idea how to do this. I have never overclocked anything and am not the most experienced with the hardware. I want the best possible clocks for my CPU but really need a step by step guide on how to do this. CPU Temps are always pretty low so I don't think this will be hard. Currently 30C.

Amd Phenom 2 x4 955 Black Edition 3.2Ghz
ASUS M5A88-V EVO
EVGA GTX 560 TI
CoolerMaster GX 750W PSU
G.SKILL Ripjaws 8GB RAM (2x2GB) DDR3 1600
CoolerMaster Hyper 212 Plus
CoolerMaster HAF 912 with 4 fans installed.

So how exactly do I go about doing this? How can I get the best overclock? I know my CPU is very good with OCs and I want a big gain.
a b à CPUs
a b K Overclocking
June 1, 2012 1:44:34 AM

Go to BIOS.

Adjust the number called "multiplier" from x16 to x20.

Adjust vcore to 1.4v.

FPS gain.
m
0
l
June 1, 2012 6:28:13 AM

Well what exactly is that doing? I want to be somewhat knowledgeable when I do this.
m
0
l
Related resources
a c 103 à CPUs
a c 190 K Overclocking
June 1, 2012 6:41:55 AM

Check out the black edition overclocking guide up top, but it is basically upping the multi, and after a time, voltage as well,
don't be scared, and a blue screen isn't necessarily doom, :) 
the multiplier multiplies the ref or baseclock speed, which on amd's is 200MHz, so a 200 ref with a x4 multi gives you an 800MHz final clockspeed, x10 multi=2000MHz (or 2GHz), but its all in the guide, and google is always useful to find out some term or anothers explanation
Moto
m
0
l
a b à CPUs
a b K Overclocking
June 1, 2012 6:00:56 PM

Multiply the FSB by the multiplier to get clock speed in MHz.

Stock FSB is 200 MHz. By changing the multiplier from 16 to 20, you gain 800 MHz which puts you up to 4GHz.
m
0
l
June 4, 2012 12:32:23 PM

So all I have to do is change 16 to 20?

An change the vcore to 1.4? Is that a safe increase for my CPU?
m
0
l
a c 103 à CPUs
a c 190 K Overclocking
June 4, 2012 12:34:37 PM

Yes, that is multiplier overclocking, but you may also need to increase voltage to support that,
try the multiplier first and if you bsod, up the voltage one increment, try again, and so on until you get it stable,
but read the sticky, it has the relevant warnings and more information than we have given here
Moto
m
0
l
June 4, 2012 12:59:50 PM

vcore is voltage right? The other guy said to put it at 1.4
m
0
l
a c 103 à CPUs
a c 190 K Overclocking
June 4, 2012 7:35:28 PM

It may be a ballpark estimate, the best way is for you to do it, every chip is different, one 955 will hit 4.2GHz, the next won't budge past 3.6GHz, one will manage with a little V kick, one may need masses more, there only one way to ascertain that, and thats by doing it,
the nature of clocking risks your kit so you go slow, and in small steps
1.4v may be just what your particular chip needs, it may need more to hit the target but then again your chip may hit 4GHz at a lower voltage, meaning lower temps
Moto
m
0
l
!