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OC'd my Phenom X4 955 BE to 3.6.. question. help please

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June 17, 2011 4:24:09 AM

Hello all!
I'm new to this overclocking and all and I been doing my studying and I think I done this right. So tell me if I did please..
I do have the Black Edition 955 so keep in mind it features an unlocked multiplier and I don't have to mess with the FSB.
On my CPU Freq. Multiplier I went from 16.0x to 18.0x
CPU Voltage I went up one from 1.4000v to 1.4125v
Everything is running stable. But here is what is confusing me. My temp only maybe went up maybe .4 of a degree!
I have a hyper 212+ heatsink on. My temps were staying steady around 29-31 on an idle and now after the OC im still at 31. Isn't that weird?
Is there anything else I need to do? Did I do this right? My windows score even came up 1 point on my speeds. Here is a pic of my specs.


http://img607.imageshack.us/img607/2792/dsadfasdf.jpg

More about : phenom 955 question

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June 17, 2011 4:44:19 AM

You did it right. You have a good cooler and apparently a good C3 sample. Run Prime 95 to make sure that it is stable at those settings and that it remains within safe temps after an hour or so. Watch the temps to make sure they don't shoot up and go too far. If your temps remain under 58C after doing it for an hour (you can run it longer if you feel you need to) then you may want to try raising it further.
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June 17, 2011 4:58:00 AM

Thanks for the fast reply bro. Oh and what's a C3? (I'm new at all this) I will run the stress test tomorrow. And one question.. For every 2 that I go up on my CPU multiplier(16x to 18x) do I go up one on Voltage?
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a c 103 à CPUs
a c 190 K Overclocking
June 17, 2011 12:39:05 PM

C3 is a stepping code revision,
the C3 is a slightly more efficient chip than a C2 version would be,
its all good :) 
Moto
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June 17, 2011 2:31:41 PM

Quote:
1.400 is too high a voltage for 955 phenom @ 3.6ghz
you can leave your voltage on auto unless u have stability issues...


1.4000 is the default for it on 3.2GHz...

So what should I put my Voltage at for it to be on 3.6?
All help is appreciated.
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a c 103 à CPUs
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June 17, 2011 3:12:11 PM

Read through this, it will be your best bet for getting good results safely
http://www.tomshardware.co.uk/forum/258573-11-black-edi...
I cant find the 955 spec sheet on the amd site, but the 970 safe voltage is 1.4 and they're on the same die so I'd take it that yours is also the same limit
Moto
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June 17, 2011 4:16:21 PM

C3 refers to the stepping. My version is an older C2 and thus generally does not go as high. 1.4v is fine for a Phenom II @ 3.6. I'm guessing that your sample might work fine if you lower the voltage a little, but I say leave it at 1.4 and see if you can't overclock it a bit more.
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June 17, 2011 4:25:07 PM

Acording to the interwebs (I also saw this on AMD's site somewhere) these are the safe parameters for a Phenom II

Electrical/Thermal parameters

V core (V) ? 1.15 - 1.425
V NorthBridge (V) 1.15 - 1.3
Max operating temperature (°C) ? 55 - 71


Basically don't go over 1.425. I have seen some overclockers go with 1.45 with good cooling and you might even go farther with liquid cooling. Even so you take your chances at shortening the CPUs life, or frying it all together, with higher voltages.
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June 17, 2011 4:31:09 PM

Motopsychojdn said:
Read through this, it will be your best bet for getting good results safely
http://www.tomshardware.co.uk/forum/258573-11-black-edi...
I cant find the 955 spec sheet on the amd site, but the 970 safe voltage is 1.4 and they're on the same die so I'd take it that yours is also the same limit
Moto


That was an amazing guide. So it told me since I'm only raising the multiplier and the Vcore that I really dont have to worry about "long term" stress testing. So here is my question, if the safe voltage is 1.4 I can go ahead and run the multiplier up a little higher huh since I have some room since I'm only running 3.6 right?
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a c 103 à CPUs
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June 17, 2011 4:57:02 PM

Thats der bunny :)  as your not messing the voltages, your relatively safe just upping the multi, running tests then upping it a touch more til you hit your ceiling, whereas volting it up can cook your chip and plate before you can scream 'Nooo'!!!
Happy clocking man, hope you can hit 4 :) 
Moto
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June 17, 2011 6:15:07 PM

Appreciate it bro, I'll probably be back for more questions lol.
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June 17, 2011 11:23:39 PM

megamanx00 said:
Acording to the interwebs (I also saw this on AMD's site somewhere) these are the safe parameters for a Phenom II

Electrical/Thermal parameters

V core (V) ? 1.15 - 1.425
V NorthBridge (V) 1.15 - 1.3
Max operating temperature (°C) ? 55 - 71


Basically don't go over 1.425. I have seen some overclockers go with 1.45 with good cooling and you might even go farther with liquid cooling. Even so you take your chances at shortening the CPUs life, or frying it all together, with higher voltages.


Ok this is gonna be a really stupid question but my brain is racked.. So don't laugh at me lol.
You said 1.15- 1-425 right?
Well here is my list of frequency's
1.4000
1.4125 (Is this what you meant? Did you just leave off the hundreds place when typing that?)
Or did you mean something different?
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June 17, 2011 11:52:27 PM

I'm up to 19.0x(3800MHz) with my default voltage of 1.4000
And my temps are staying pretty much the same even when running prime 95 Isn't this strange? Am I doing this right? This seems weird my tempts aren't going up at all. Here is a screen shot.
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June 18, 2011 12:47:42 AM

Quote:
do you have your northbus set to 2400mhz ?
1.400 volts is enough for 3.8ghz maximum stable.
1.4875 volts will yeild you 4.0ghz.
but u need the northbus set to 2400mhz :) 

I've only set the CPU multiplier and voltage.. So I do have to mess with the northbridge??
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June 18, 2011 12:57:17 AM

I mean what do I have to do that for?
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June 18, 2011 1:05:45 AM

gotcha.. Ok I have another question... Here is a pic I'm so confused with how people is saying voltages.. On this list right here what is the highest I should go up too?
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June 18, 2011 1:18:37 AM

I got everything stable at 4000MHz and 1.4375.. But then after 5 min with prime 95 my 3rd core stopped working.
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June 18, 2011 1:28:56 AM

Quote:
1.5 is the maximum recommended by AMD
i personally have overclocked on 1.6+ volts with air and managed 4.7ghz!!
but that was my mad stages lol.
you will need 1.4875 volts for 4.0ghz.
1.400v for 3.8ghz


What would happen if I ran it right under 1.4875v? The one underneath it? Sorry I'm asking stupid questions. It's all starting to make sense to me now. And dang thats crazy bro! 4.7?
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June 18, 2011 1:40:13 AM

Quote:
you need more voltage.
1.475 volts may make you stable and beleive me this voltage is safe for 24/7 use :) 


Sorry again for the stupid question but my maths skills are off. When you say 1.475 volts.. Which one on MY PICTURE above are you referring too? I see 4 numeric words and you are saying 3. Are you rounding? Please point this out lol.
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June 18, 2011 1:51:27 AM

Quote:
it says in your voltage option 1.475 volt choose that one

Omg I feel like and idiot, your leaving the tens place off lol. So 1.475 for 4000GHz right? Do I do something to the NB now? Thanks again for putting up with me lol
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June 18, 2011 2:04:07 AM

Thanks bro! If I was there i'd give you a big freaking hug. You know, in a non gay kind of way lol
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!