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Overclocking AMD Phenom II x6 1035t help needed - Page 2

post #11 of 19
Thread Starter 
Ok, I had Prime95 running for 13 hous and 40 min wihout any errors or crashes. So I think it's stable at 3.7Ghz now. I'll try if I can reach the magic 4.0Ghz today. I only raised the Vcore to 1.5v.


tnx!


MAD.
post #12 of 19
Thread Starter 
Quote:
Originally Posted by jsc1973 View Post

Between 3.6 and 3.7 is where I have trouble with my 1035T. It's 100 percent stable at 3.6, and will boot but becomes unstable after a while at 3.7. I'm throwing 1.45v at it to get to those speeds.
It looks like your BIOS settings are OK, although you might need to boost voltage to the NB a little if you're running at stock voltage on it.

With how much should I boost the NB voltage if I need to do that? This far I don't need to do it, but for when I do.


Also, does it matter if the NB and HT are overclocked like 50Mhz? What is the save clockspeed range for NB and HT?
post #13 of 19
Thread Starter 
I tried to run 3.8Ghz. Which ran stable for my 30min test. But 3.9Ghz is unstable. What should I do? Increase the NB voltage(how much?)?


tnx!


MAD.
post #14 of 19
What is your CPU-NB speed at? And what are you CPU-NB and NB Voltages at? And have you found your boards limit for reference clock (stock 200 currently 286)? Also 1.5V is max VCore your going to want to use.
post #15 of 19
Thread Starter 
Quote:
Originally Posted by MGF Derp View Post

What is your CPU-NB speed at? And what are you CPU-NB and NB Voltages at? And have you found your boards limit for reference clock (stock 200 currently 286)? Also 1.5V is max VCore your going to want to use.

CPU-NB freq: 1758Mhz (lowered it to not go over the stock 2000Mhz)
CPU/NB voltage: 1.15 (stock)

What do you mean by 'limit for reference clock' ?
post #16 of 19
13x286=3.7Ghz Is 286 your limit or can you go higher? You may have to lower your cpu multiplier to find out. Also your most likely going to need to raise your CPU-Nb to 2400+ to go over 3.8. HTT is what you want to keep at 2000mhz CPU-NB you want as high as you can get it.
post #17 of 19
Quote:
Originally Posted by MAD100007 View Post

I tried to run 3.8Ghz. Which ran stable for my 30min test. But 3.9Ghz is unstable. What should I do? Increase the NB voltage(how much?)?
tnx!
MAD.

Quote:
Originally Posted by MAD100007 View Post

CPU-NB freq: 1758Mhz (lowered it to not go over the stock 2000Mhz)
CPU/NB voltage: 1.15 (stock)
What do you mean by 'limit for reference clock' ?

Quote:
Originally Posted by MGF Derp View Post

13x286=3.7Ghz Is 286 your limit or can you go higher? You may have to lower your cpu multiplier to find out. Also your most likely going to need to raise your CPU-Nb to 2400+ to go over 3.8. HTT is what you want to keep at 2000mhz CPU-NB you want as high as you can get it.

Set your NB voltage to 1.2v,1.25v is a safe max. Set HTT to 1.25-1.3v for now,can go up to 1.355v safely.

You do want the CPU/NB frequency as high as possible,but don't raise it too much until you get your bus speed and CPU frequency set. I would go ahead and set CPU/NB voltage to 1.25v,maybe around 2200 to 2400MHz on the frequency until you get your bus speed(ref clock) set.Ultimately you want at least 2800MHz+,but it will take around 1.35-1.45v,depending on your chip.
HTT you want to keep lower than 2300MHz .

Your RAM settings are the most crucial for ref clock overclocking,as you change the speed you will have to adjust RAM every time. Loosen the timings and increase the voltage to keep it stable while you play with your CPU overclock.Go ahead and set RAM to 1.65v.
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Amelia
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post #18 of 19
here are some excellent guides that'll give you a good foundation on how to get the most out of the thuban X6's

AMD Phenom II Overclock Guide (3 step)
http://www.overclockers.com/step-guide-overclock-amd-phenom/
AMD Phenom II Overclock Guide (Gappos)
http://www.overclock.net/amd-general/777378-official-gappos-little-deneb-thuban-overclocking.html

AMD PhenomII RAM Speeds during OC
http://hardforum.com/showthread.php?p=1038191083#post1038191083
    
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post #19 of 19
Thread Starter 
Sorry for my late response, I wasn't home this weekend.

I tried 3.9Ghz with your 'tips', but it doesn't run stable.

I tried the combination of these settings:
-NB/CPU voltage to 1.25v
-NB/CPU Freq to 2400Mhz
-Ram voltage to 1.65v



What can it be, that it doesn't run stable?


MAD.
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