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Vcore isn't matching BIOS setting?

post #1 of 9
Thread Starter 
Hey, everybody. I have what should (should!) be a pretty simple question..

I've got my 1055T set up on this motherboard:

http://www.newegg.com/Product/Produc...82E16813131398


It's running at 3640 MHz, and though I haven't run the official 8 hours of p95, it seems to be pretty stable, if a bit hot.

Long story short, I've got it set to 1.52V at CPU overvoltage, and 1.45V VDDNB overvoltage. I have the loadline calibration set to 100%, which I've been told means that (CPU OV = Vcore) should be true.

Speedfan is reporting about 1.47 at this very moment, and it fluctuates. CPU-Z isn't actually reporting a core voltage, and I'm not entirely sure why. I may reinstall it some time soon, to see if I can fix that.

Am I missing something? I've only started overclocking this past week or so, and it's all been pretty much trial and error, so any advice is certainly welcome.

Edit: I reinstalled CPU-Z, here's the validation for ya.

http://valid.canardpc.com/show_oc.php?id=1606521
Edited by tpl2000 - 1/19/11 at 9:24pm
    
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post #2 of 9
Other than the possibility of the voltages being a bit high for 3.6, looks like it's all there.

Did you work up to these levels or just start that high intending to reduce them later or something? They just seem high for that OC is all.
 
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post #3 of 9
Thread Starter 
I worked up to these levels. (Not sure the VDDNB voltage is necessary.)

I've tried running it with less voltage than this, but this is as low as I can go while still relatively stable.

I guess my particular chip just can't be overclocked too far, lol.
    
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post #4 of 9
Where is your NB Freq at? Dram Freq and voltage? Maybe we can make some changes there to add stability.
 
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post #5 of 9
My BAD LOL. I see you have the HT Link Speed running 2600MHz. reduce that back to 2000MHz or as close as possible that will help.
 
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post #6 of 9
The actual voltage is almost always different than what is set in the BIOS. You have nothing to worry about. Even software isn't too accurate. If you really want to know what your voltage is, buy a cheap multimeter.
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post #7 of 9
Yeah you dont need 2600mhz on the ht link, the bandwidth never gets clogged enough to need that kind of bandwidth, drop it to as close to 2000mhz as possible. You will probably need far less voltage after that. Also I really dont think you need VDDNB voltage above stock. Its the CPU-NB voltage you want to bump up, but only if you are overclocking your northbridge.

Check out my overclock guide if you need more information.
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post #8 of 9
I think his bios calls the cpu/nb voltage VDDNB as my previous Asus M4A785-M did the same thing.
 
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post #9 of 9
Thread Starter 
Wow, awesome! Tons of help; I'll try all of this as soon as I wake up in the morning. For now, though, I must adjourn. Many thanks, and I'll let you know how it all goes
    
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