Sign in with
Sign up | Sign in
Your question

Overclocking AMD Phenom ii x4 955 Deneb (NOT B.E.)

Last response: in Overclocking
Share
January 29, 2013 1:59:14 AM

AMD Phenom ii X4 955 (Deneb)

Biostar A870U3

*****

Cooling, heatsink, psu, all good -- just trying to figure out what my first step is here.

I downloaded AMD Overdrive and it won't let me up the clock core multiplier any higher than it comes stock:

http://i.imgur.com/f6GCnaa.png

So what is my first step here? Do I have to unlock my processor or what?

I'm not going for anything crazy here, would like to get a 3.6-4.0 OC.
a b K Overclocking
January 29, 2013 10:59:47 PM

Overclock via bios only! Read some guides, don't be afraid to use google there are tons of excellent guides available for OCing a 955.

All 955's are black edition chips, anything below a 955 in the phenom II x4 line is not a black edition.
m
0
l
January 30, 2013 4:18:07 PM

mlcaouette said:
Overclock via bios only! Read some guides, don't be afraid to use google there are tons of excellent guides available for OCing a 955.

All 955's are black edition chips, anything below a 955 in the phenom II x4 line is not a black edition.


Right. Well I've been in the BIOS several times, and when I get to core multiplyer after enabling custom p-states, the highest value is x16 (3200mhz). So what am I dealing with here?

Again, mobo is A870U3.

Here's an ss of CPU Z:

http://i.imgur.com/xKIKmXS.jpg
m
0
l
Related resources
a b K Overclocking
January 31, 2013 1:09:47 AM

Seems like it is a board limitation and not a chip limitation you're running into. The board was not intended for overclocking (it uses a 3+1 vrm with no cooling on it).

Buying a different motherboard would solve your problem, in the meantime I wouldn't push your overclock too far unless you want to fry the motherboard and possibly other components as well.

Here are a couple of threads dealing with the particular board in question:
http://www.overclock.net/t/1050385/biostar-a870u3
http://hardforum.com/showthread.php?t=1650724
m
0
l
June 3, 2013 2:10:47 AM

I dunno where this poster above me gets his information, but the 955 Deneb core was sold in a multiplier locked non B.E. version and a multiplier unlocked Black Edition version at a higher price. The non BE Deneb also specified TDP as 95W, while the BE was specced at 125W.
m
0
l
a b À AMD
a c 241 K Overclocking
June 4, 2013 4:44:39 AM

non BE just raise FSB and vcore and drop HT and drop RAM ratio .. sure had strong RAM ??
m
0
l
!