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AMD Phenom II X4 High voltage??

post #1 of 13
Thread Starter 
I have done a lot of research on my chip, and fiddled with LLC and such, and, unlike my other overclocks posted here, it was stable on prime, but say, when i played a cou intensive game like GTA4 at 4ghz, it would crash almost instantly.

Finally, i got a great 4ghz overclock, and im just wondering if i do have more voltage head room to OC a bit more, or if it is too high already for a safe 24/7 OC.


(on my ipad, no screenshots, sorry guys)


CPUZ reads 1.47 - 1.488 volts, spikes up to 1.520 for a second every once in a blue moon during stress tests, but is usually at 1.488

I am at 211mhz x 19 making 4,009mhz, which gives me that pretty 4ghz

Unfortunately, my memory isnt the best, and runs at 1333mhz (8gb, dual channel) and is unstable with any overclock to them. I have not overclocked my NB or any other part of my chipset, because being honest, my ASUS m4a77td mobo makes it sort of confusing for me. Any help would be greatly apreciated!
post #2 of 13
Quote:
I have not overclocked my NB or any other part of my chipset
The NB in this case is part of the processor, there is nothing overclockable on the board that is part of the board's NB other than the PCIe controllers, which really hate being overclocked. Overclocking the CPUNB will yeild large performance gains in anything cache/memory heavy.
Quote:
CPUZ reads 1.47 - 1.488 volts, spikes up to 1.520 for a second every once in a blue moon during stress tests, but is usually at 1.488
1.55v if you can keep it cool enough, should still last a long time. SEE NOTE.
Quote:
Unfortunately, my memory isnt the best, and runs at 1333mhz
Maybe the speed is low, but 1333 is actually pretty ideal for these chips. What timings are you running?


NOTES:
Your board's VRM may not be suited for that kind of overclock, make sure you keep them cool as that can seriously be pushing it on a 4+1 VRM setup, which may cause the board to throttle or spontaneously fail. (edit: Doesn't appear to even be 4+1, but rather 3+1 or non-split 4 phase.)
    
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post #3 of 13
Thread Starter 
My ram timings (im sorry, i am not experienced when it comes to memory, and im not home as of now) are all 9 and 2T, not exactly surr what that 2T means, but its stock, and ive read that under 9 clocks you wont see a difference in gaming.

You mentioned my board is a 3+1, are you refering to my sig board or the one in the post? My sig is old.

So, is 1.488 fine for my board? I am obviously well below the 1.55 v cpu limit. Im sorry for the rushed reply, i havent much time frown.gif
post #4 of 13
Quote:
Originally Posted by HeDsh0t View Post

My ram timings (im sorry, i am not experienced when it comes to memory, and im not home as of now) are all 9 and 2T, not exactly surr what that 2T means, but its stock, and ive read that under 9 clocks you wont see a difference in gaming.

2T refers to the command rate, and it's no big deal, but I believe 2 is better than 1.
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post #5 of 13
1T peforms about 3% better, and lower timings make a significant difference in more than just gaming. Especially with 1333 (667Mhz) memory.
Quote:
You mentioned my board is a 3+1, are you refering to my sig board or the one in the post? My sig is old.
I referenced your sig board, my bad. That said, the ASUS M4A77TD is only -marginally- better, as a 4+1 phase board. Being ASUS, it will throttle to stop itself from exploding, but I would definitely recommend adding third party cooling. At minimum, a fan on them would help a lot.
    
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post #6 of 13
Thread Starter 
So I have been tinkering with my voltages, I was rock stable at 4ghz at 1.4875v, and I heard that the safe 24/7 voltage for these processors is 1.55, for a good 3 or so years before it cannot hold that high of a clock speed.

Here is a screenshot of what i am running:




Im at 4.3ghz (aiming for a full 1ghz overclock to get into the 1ghz Club biggrin.gif ) at 1.536v, spikes for a moment to 1.552...is this safe?
post #7 of 13
You'll be fine! So long as temps don't go over 60c then that won't be an issue. Heck, some people have ran deneb chips at 1.6v for years without issue. They can take an ass kicking thumb.gif
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post #8 of 13
Thread Starter 
Even just on air? I have a hyper 212 plus, and my temps are never above 55 during a 5 hour prime run. In every day hardcore gaming, it doesn't peak above 52 at 1.53v @ 4.3ghz
post #9 of 13
Quote:
Originally Posted by HeDsh0t View Post

Even just on air? I have a hyper 212 plus, and my temps are never above 55 during a 5 hour prime run. In every day hardcore gaming, it doesn't peak above 52 at 1.53v @ 4.3ghz

Perfectly fine. I don't think you will be getting that 4.4 though.
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post #10 of 13
Thread Starter 
Yeah, i know its rare, and it took me forever to get it to 4ghz, but, you never know. I came across this one guy who had a super rare chip, he had it verified with CPU-z; 4.5ghz on the same chip I have, using a 10 dollar heatsink, never going above 45 degrees (in a basement). Who knows...maybe I have a lucky cip, only one way to find out biggrin.gif
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