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Phenom II x4 970 - 2nd core fails Prime test

post #1 of 11
Thread Starter 
While stress testing the chip on small FFT there were no problems for over 30min. I've stopped the test and put it on Blend mode, the second core fails within 30sec.

http://valid.canardpc.com/show_oc.php?id=1643375

Voltage wise:
cpu -1.587
vdda - 2.838
CPU/NB - 1.515
North Bridge core - 1.237
DIMM - 1.740

Load Temp @ 30min on small FFT Prime - 54C

Why does the second core report an error so quickly?
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post #2 of 11
Blend stresses the memory as well. Are you sure yours is fully stable?
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post #3 of 11
holy crap that's a lot of voltage for a 970! My 955 only needed 1.51v to hit 4150. And 1.4v on the IMC for 2800. What is your cooling method?
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post #4 of 11
That is a LOT of voltage. Is it stable with less voltage or was that needed to hit 4GHz? The CPUZ screenie has it at almost 1.6 volts. That is just crazy for that chip.
Edited by PhillyOverclocker - 2/7/11 at 6:36pm
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post #5 of 11
1.6 volts! Holy crap are you sure that you arnt adding a little to much? Too much voltage can cause stability issues too
    
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post #6 of 11
Thread Starter 
I just put my cpu loop together and seeing as it's keeping the temp down pretty well i figured I'd juice up the chip and give myself more room for error while setting up the OC and still try to keep it stable.

No, I'm not sure how to go about testing the ram alone for stability. Do I run Memtest for that?
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post #7 of 11
I usually run HyperPi 32M on all cores for a ~20 minute stability test.
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post #8 of 11
Quote:
Originally Posted by dessoir View Post
I just put my cpu loop together and seeing as it's keeping the temp down pretty well i figured I'd juice up the chip and give myself more room for error while setting up the OC and still try to keep it stable.

No, I'm not sure how to go about testing the ram alone for stability. Do I run Memtest for that?
Don't bother until you get your CPU stable, and to do that you are probably going to have to drop that voltage .5 volts.
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post #9 of 11
Weak core
It happens
post #10 of 11
Quote:
Originally Posted by xd_1771 View Post
Weak core
It happens
this maybe^

i'd rma the chip for a new one

getting a nice mobo, chip, and loop then not being able to hit 4.0 is a letdown
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