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First OC: Phenom II 955

post #1 of 62
Thread Starter 
I have had my rig for about a month and a half and want this Phenom to shine. I just want to see the performance difference and hopefully boost the graphics in Skyrim. I am at stock right now, 3.2Ghz, on my CoolIT ECO liquid cooler with the pre-applied thermal paste on it. Is there some kind of overclocking guide around here?
Edited by NuclearSlurpee - 12/3/11 at 11:45pm
post #2 of 62
Here you go thumb.gif

http://www.overclock.net/t/525113/phenom-ii-overclocking-guide
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post #3 of 62
so easy to overclock. bump it to 20x multiplier (4ghz) set vcore to 1.45v. voila you're done. if it's stable get the lowest vcore you can. if it's not bump it alittle bit more
post #4 of 62
Quote:
Originally Posted by jprovido View Post

so easy to overclock. bump it to 20x multiplier (4ghz) set vcore to 1.45v. voila you're done. if it's stable get the lowest vcore you can. if it's not bump it alittle bit more

you should also disable cool 'n' quiet and AMD turbo boost technology.
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post #5 of 62

^ Actually going straight to the top may not be the wisest choice.  At least take some steps.  All chips are different, one might be totally unbootable at 4Ghz without 1.5V to the chip.  Always OC each separate component one at a time (i.e. CPU before Northbridge).  There is also absolutely no need to disable CnQ and no proof that it will hinder your overclocks (my 1055T 4Ghz 1.42V OC, which is considered excellent for this chip, runs with CnQ on), although it may itself stop working past 19x multiplier.

post #6 of 62
double post..deleted
Edited by jprovido - 12/1/11 at 3:56pm
post #7 of 62
Quote:
you should also disable cool 'n' quiet and AMD turbo boost technology.
^this
disable C1E as well and also disable the SMART fan on your gigabyte board.

Quote:
^ Actually going straight to the top may not be the wisest choice. At least take some steps. All chips are different, one might be totally unbootable at 4Ghz without 1.5V to the chip. Always OC each separate component one at a time (i.e. CPU before Northbridge). There is also absolutely no need to disable CnQ and no proof that it will hinder your overclocks (my 1055T 4Ghz 1.42V OC, which is considered excellent for this chip, runs with CnQ on), although it may itself stop working past 19x multiplier.

taking steps is always the best way ofcourse smile.gif it would be nice if he gets it stable instantly with a shortcut though.

when I had my Phenom II x3 720 years ago and overclocked it to 3.8ghz I had trouble getting it stable with prime and Linx with CNQ enabled. it failed in prime about 6 hours in. with CNQ disbaled it passes 16 hours+ prime95. that's just me though. after that I've always had cnq and c1e disabled with my overclocks
Edited by jprovido - 12/1/11 at 3:56pm
post #8 of 62

^ Your motherboard probably had a problem negotiating the clock speeds and may have needed a BIOS update.  I'm pretty sure there was a mild to minor case of CnQ problems on some old AM2/AM2+ boards before, although it faded out with BIOS updates.  For me, there's not a difference whether CnQ is on or off; my 1055T runs at 4Ghz 1.42V regardless.

post #9 of 62
Quote:
Originally Posted by xd_1771 View Post

^ Your motherboard probably had a problem negotiating the clock speeds and may have needed a BIOS update.  I'm pretty sure there was a mild to minor case of CnQ problems on some old AM2/AM2+ boards before, although it faded out with BIOS updates.  For me, there's not a difference whether CnQ is on or off; my 1055T runs at 4Ghz 1.42V regardless.

probably although I update my bios regularly. could've been just my motherboard though. it was the gigabyte GA790FXT-UD5P AM3.

I've used only a single motherboard with all my 3 amd cpu upgrades first a 720 BE, a 955BE then the 1090T(lovin the value that board that gave me and the backwards compatibility. it was awesome an old 790FX still supported my 1090T) it's better if he can have it on. having CNQ enabled without stability problems is great.

btw we never asked the OP if his phenom II 955 is a C2 or C3 stepping
Edited by jprovido - 12/1/11 at 4:14pm
post #10 of 62
Thread Starter 
I was thinking 3.8Ghz is reasonable, not sure how well it will do at 4Ghz with my cooler.
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