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Phenom II X4 955 Overlocking Noob Needs You!

post #1 of 9
Thread Starter 
Hi guys, I've been wanting to overclock my 955 Phenom II CPU for a long time now but have been running on the stock AMD cooler for the longest time. However, now that has all changed since my purchasing of a Corsair H70 liquid-cooler. I currently idle around 26-27c stock and load mostly around 38-40c (not sure how great that is... my stock cooler usually went up to 57c on load and idled around 35-36c). I'd say my room temps are on average in the winter are around 68F, though I'm not really sure, but that's my guess. The summer is a whole different story when outdoor temps are averaging 107F, then my room will probably average around 81-83F since I don't like spending a ton on having the A/C work overtime to cool my house.

Anyways, I would like to do some pretty good overclocking while maintaining stability (obviously) and decent temps as well, if possible. A question I have is: How high can 955's usually clock (or how high does the majority usually get this chip and remain stable)? I don't want to push the chip to the bleeding-edge or anything, but I would like to attain at least 3.8Ghz. Again, I don't very well know what I'm doing and so I don't know if that goal is too high or too close to the limits of the chip or not, so let me know...

I pretty much need guidlines on how to get started and how I should go about tinkering with the multipliers and all that. Thanks to anyone who can help me out!

You can see the specs of my system in my sig below.
post #2 of 9
http://www.overclock.net/amd-cpus/22...als-older.html
post #3 of 9
Try going 3.6 by just raising the multi. It should be stable, mine is.

If you want to go 3.8 you need to up the volts a little, just add more until the chip becomes stable. Try to stay below 1.5v
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THE RIG v 2.0
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3770K Asus P8Z77-V MSI GTX570 8GB Corsair Vengeance 1600 
Hard DriveHard DriveHard DriveHard Drive
Samsung 830 128GB Western Digital Caviar Black 640GB Seagate Barracuda LP 1.5TB Seagate Barracuda LP 2TB 
CoolingOSMonitorKeyboard
Hyper 212+ Windows 7 Professional 64bit AOC 27" + Dell 17" OCN Ducky Shine - MX Red / Red LED 
PowerCaseMouseMouse Pad
Corsair TX650W Antec 902 Mionix Naos 3200 Steelseries QcK 
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post #4 of 9
Thread Starter 
Quote:
Originally Posted by n1helix;11956398 
Try going 3.6 by just raising the multi. It should be stable, mine is.

If you want to go 3.8 you need to up the volts a little, just add more until the chip becomes stable. Try to stay below 1.5v

Ok, I'll try that, but here's the thing, I don't know what to put any of the values to. That's what I was saying in my post, though maybe I didn't make it clear I guess. What is the stock multiplier set to and what should I put it to so that it can reach 3.6? I'd still prefer 3.8 though, but again, I don't know what to put anything to (the multiplier, the voltage, I read something about both CPU voltage and NB voltage?, etc). And I don't want to do anything drastic or unsafe, because obviously I can't get a refund if my chip dies due to me screwing up (plus I can't afford to get another if my current one dies).
post #5 of 9
I have my 955 stable at 4ghz on 1.425volts. But I am on water, so that helps alot.

EDIT: just saw your post about numbers, you should start with your base clock of 200mhz which is stock, raise your multi up to like 18.5 and see how stable it is, then raise you voltage one increment up if you have to.

18.5x 200 will put you at 3.7ghz. try that out.
Edited by thrasherht - 1/9/11 at 9:55pm
post #6 of 9
Thread Starter 
Alright, so before I do any of this I just want to make sure... Is starting out with a clock of 3.7Ghz safe? I know that overclocking involves risk, but I would like that risk to be minimal despite my desire to overclock a good amount. Also, if I overclock my chip to 3.7 or even 3.8 as I mentioned before, what should my voltage look like? And do you think my specs are up to the task? I'm not sure, but I remember a while back reading that overclocking partially relies on the quality of your mobo? Correct me if I'm wrong.
post #7 of 9
Well you shouldn't really be just picking a number and setting it right to that. OC'ing properly is more of a process, starting at the very bottom and working your way up to the clocks you want, all the while keeping in check: voltage, heat and stability.

If you have a Black Edition chip you can just work with the multi, and bump that up 1 at a time, rebooting in between to see how far it goes. If you have a regular chip you have to OC with the bus, which starts at 200mhz, up that 5mhz between reboots until it won't boot up, clear CMOS and up voltage.

Let me just find a guide here for this, no sense reinventing the wheel. V
READ ALL THIS HERE

Also at what thrasherht, you Could just set it to someone else's settings to start off with a 3.x ghz OC, and they might be stable, or it might not boot. I don't think there is really any harm starting high, just not extremely high. The problem with it is that you can't eliminate the problems when it comes to stability.
post #8 of 9
Thread Starter 
And what happens if it doesn't boot? How do I fix that? Do you mean that it won't load windows without crashing during the boot or that the PC won't even turn on?
post #9 of 9
Thread Starter 
Ok, so I successfully clocked my chip to 3.6Ghz and it runs great, ran Intel Burnin Test for 5 passes and it remained stable. It currently idles around 27-29c and never breached 48c throughout the stress test.

Now my goal is to raise that up to 3.7Ghz, and then later 3.8Ghz, and so on until I can perhaps successfully clock it at 4Ghz stable.

Though I'll definitely need some help from the more experienced overclockers here! Do you guys think I can clock the chip another .1Ghz without fiddling with the voltages? I didn't with 3.6Ghz, so I'm curious.

Something about modifying the amount of volts going to my components puts me on edge... Is it really all that safe? I'd like to avoid it wherever I can.

EDIT: Another quick question, Is it ok to leave Cool N' Quiet on when my chip is OC'd? I turned it off so i could see that my OC'ing succeeded without needing to stress it first, but I'd rather keep the feature on since my idle temps range around 27-29c as opposed to 33-34c.

EDIT2: One more question, is there any program I can download free that can show all the stats for my CPU (and GPU, if possible) ingame so I don't have to run the game windowed? I find that my second card often doesn't get utilized unless a fullscreen application is running.
Edited by theDARKW0LF - 1/10/11 at 3:33pm
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