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help with Phenom II 945 overclock - Page 2

post #11 of 23
Thread Starter 
Quote:
Originally Posted by karmuhhhh;11723710 
55 Degrees is actually the maximum you want it to go, so you are spot on perfect. Leave it at that and you should be golden! Just be sure to run some nice stability tests to make sure it won't crash mid-game or anything.

Btw, do you have the C2 or C3 revision of the 945? You can check by looking at CPU-Z.
I read "stepping 2". Is it a good thing, or as the name suggests it would have been better if it was a step3?

step2c.jpg



At the moment the only stability tests I've made are "wPrime204" and "CINEBENCH R10 64Bit". Have you got a stability test to suggest me to see if I'm really 100% stable? Thank you!
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post #12 of 23
Well the C2 is the same one I have. That means your CPU is a 95W version. The good thing about that is it does not produce as much heat. Therefore, you can bump up the voltage more than the C3 without worrying as much about reaching the heat wall because your temps will be lower (the C3 is a 125W CPU, so it gets hotter much quicker). However, the bad thing is that you will max out your OC at around 3.6-3.8 depending on how good of a chip you received. One is not necessarily better than the other, unless you are trying to hit a 24/7 4GHz overclock, but that is pretty unnecessary anyway.

As for the stability test, there is no such thing as the "perfect" one, they all test different things. One test that you do not have however is a Linpack test. There are several GUI's for it, but my favorite is LinX. Download that and run it about 20-50 times on "all" memory setting. That test will get your temps up pretty high smile.gif
    
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post #13 of 23
Thread Starter 
Ok I think I've understood the difference between the 2 steps. I've just downloaded linX (by the way thanks for the link smile.gif).
I will try it as soon as possible to test if my system is stable at 3.4GHz.
Thanks for everything!
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post #14 of 23
You're welcome. I hope everything works out for the best. Let us know how it went smile.gif

Goodluck!
    
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post #15 of 23
Thread Starter 
Quote:
Originally Posted by karmuhhhh;11723936 
You're welcome. I hope everything works out for the best. Let us know how it went smile.gif

Goodluck!

I will let you know for sure how it goes smile.gif
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post #16 of 23
Thread Starter 
Ok I've run LinX only 5 times (for a matter of time) with "all" memory setting, and I had no BSOD.The bad news is my cpu temperature hit 60 degrees at 3435MHz:
linx.th.png


Anyway even running "CINEBENCH R10 64Bit" and "wPrime204" I had no crashes at all. I think I will decrease the cpu clock to 227MHzx15, in this way I keep my cpu at 3.4GHz, and if I had no problems with 229MHzx15, I should be safe and with slightly lesser temperatures at 227MHzx15.
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post #17 of 23
Quote:
Originally Posted by karmuhhhh;11723847 
Well the C2 is the same one I have. That means your CPU is a 95W version. The good thing about that is it does not produce as much heat. Therefore, you can bump up the voltage more than the C3 without worrying as much about reaching the heat wall because your temps will be lower (the C3 is a 125W CPU, so it gets hotter much quicker). However, the bad thing is that you will max out your OC at around 3.6-3.8 depending on how good of a chip you received. One is not necessarily better than the other, unless you are trying to hit a 24/7 4GHz overclock, but that is pretty unnecessary anyway.

As for the stability test, there is no such thing as the "perfect" one, they all test different things. One test that you do not have however is a Linpack test. There are several GUI's for it, but my favorite is LinX. Download that and run it about 20-50 times on "all" memory setting. That test will get your temps up pretty high smile.gif

Actually you have it backwards, the C3 is the newer revision at 95w and the C2 is the older revision at 125w. OP has a C2 so its not going to overclock very well.
 
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post #18 of 23
The C2 can be either 95W or 125W. Newegg sells the 125W version. Most likely it is 125W, in which case you shouldn't be overclocking as you are using a motherboard with only 4+1 power phase, no heatsinks on the power phase, and a cooler that blows air so as to miss the power phase. I'm telling you, push the clock speed too far and you'll come home one day with a smoldering pile of ashes in your board because the mosfets caught fire trying to push more than 125W - I became aware of this and it became a huge problem to me lately as this issue has popped up numerous, numerous times for AMD users trying to push the clock speeds on low end boards. You should get a new motherboard with better power phase if you do have a 125W. You shouldn't be running 125W processors even at stock with weak, uncooled mosfets anyway.

Also, C2 revision doesn't overclock as well in most cases, and/or needs more voltage.
Edited by xd_1771 - 12/21/10 at 8:36am
post #19 of 23
Quote:
Originally Posted by xd_1771;11726516 
The C2 can be either 95W or 125W. Newegg sells the 125W version. Most likely it is 125W, in which case you shouldn't be overclocking as you are using a motherboard with only 4+1 power phase, no heatsinks on the power phase, and a cooler that blows air so as to miss the power phase. I'm telling you, push the clock speed too far and you'll come home one day with a smoldering pile of ashes in your board because the mosfets caught fire trying to push more than 125W - I became aware of this and it became a huge problem to me lately as this issue has popped up numerous, numerous times for AMD users trying to push the clock speeds on low end boards. You should get a new motherboard with better power phase if you do have a 125W. You shouldn't be running 125W processors even at stock with weak, uncooled mosfets anyway.

Also, C2 revision doesn't overclock as well in most cases, and/or needs more voltage.

I stand corrected, yes you are right about the C2 being either 95w or 125w. I didnt know they made a 95w C2 945. I dont think that will matter much though because it still has a weaker IMC so there isnt as much headroom.
Edited by nagle3092 - 12/21/10 at 8:53am
 
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post #20 of 23
Thread Starter 
Quote:
Originally Posted by xd_1771;11726516 
I'm telling you, push the clock speed too far and you'll come home one day with a smoldering pile of ashes in your board because the mosfets caught fire trying to push more than 125W

I'm 100% sure I've bought the 95W one (I still got the vendor bill). As you can see my motherboard is an "Asus M4A785TD-M EVO AM3 785G". You are telling me that my motherboard is not good for overclocks? (I really have no idea. I'm just asking).
I've tried to stress my cpu, and the higher temperature it reached is 60 degrees after a 5 time run of LinX. Is it too high?
As you can see in the previous images I've posted I got my cpu at a bit more than 3.4 GHz with 1.36250 V. I won't change for sure motherboard and cpu cooler to get more overclock. At the moment I'm trying to reach an overclock without risking too much with the hardware I got. And that is why I'm asking your help smile.gif My plan is to change motherboard and cpu when I will buy Bulldozer or Sandy Bridge. I don't want to buy now since I will most certainly upgrade motherboard and cpu during 2011.
So considering my situation do you think that with my cpu overclocked at 3.4GHz I'm risking too much and I should lower the frequency? Or do you think that since my cpu is the 95W one I'm quite safe untill I upgrade my hardware?
Thank you for sharing your point of view.
Edited by persona - 12/21/10 at 1:08pm
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