Amd phemon x4 840

hi i was just to see how high i could wit stock voltage i got up 3.4 and did a test and got a blue screen of death

what does that mean was my temps were to high because were @ 49c so what do u guys think
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  1. Bump your CPU volts.

    Did you drop your HTLink speed and RAMs divider?
  2. i dont what is tht the only i changed what the cpu frez
  3. That either means its unstable or other components are effected by the OC.
  4. nah i didnt drop them should i
  5. Try upping your voltage a little (a tiny bit not alot).
  6. You need to drop your RAM divider one notch -- same with the HTLink multiplier.

    What is your RAM speed?
  7. 1333 now it 568mhz and my max was 52c and increased the volage to 1.440
  8. Now check for stability, run Prime95 for a few hours atleast (24Hrs recommended).
  9. ok
  10. 250MHz is your system clock sweet spot with DDR3 13333.

    Drop the RAM divider from 6.67 to 5.33 (5.33 x 250MHz = 1333MHz) so your RAMs will be running spec speed. Drop the HT Link speed to 8X (or 1600MHz) 8 x 250MHz = 2000MHz stock HT

    Your IMC/NB should be fine at 10 x 250MHz with NB volts at 1.2v to 1.225v. With your system clock at 250MHz, drop your CPU multiplier to 13x and check for temps and stability.

    You may then work the CPU multiplier upward in .5 increments.

    edit: Be sure to 'ungang' your memory controller
  11. it seems stable right now but i will keep i eye on it and check it in the moring
  12. well this what i got Wed Sep 05 22:32:51 2012]
    Compare your results to other computers at http://www.mersenne.org/report_benchmarks
    AMD Phenom(tm) II X4 840 Processor
    CPU speed: 3409.52 MHz, 4 cores
    CPU features: RDTSC, CMOV, Prefetch, 3DNow!, MMX, SSE, SSE2
    L1 cache size: 64 KB
    L2 cache size: 512 KB
    L1 cache line size: 64 bytes
    L2 cache line size: 64 bytes
    L1 TLBS: 48
    L2 TLBS: 512
    Prime95 32-bit version 25.11, RdtscTiming=1
    Best time for 768K FFT length: 12.840 ms.
    Best time for 896K FFT length: 15.744 ms.
    Best time for 1024K FFT length: 17.687 ms.
    Best time for 1280K FFT length: 22.136 ms.
    Best time for 1536K FFT length: 26.400 ms.
    Best time for 1792K FFT length: 32.299 ms.
    Best time for 2048K FFT length: 36.444 ms.
    Best time for 2560K FFT length: 48.923 ms.
    Best time for 3072K FFT length: 58.473 ms.
    Best time for 3584K FFT length: 71.376 ms.
    [Wed Sep 05 22:48:36 2012]
    Self-test 1024K passed!
    Self-test 1024K passed!
    Self-test 1024K passed!
    Self-test 1024K passed!
    [Wed Sep 05 23:04:03 2012]
    Self-test 896K passed!
    Self-test 896K passed!
    Self-test 896K passed!
    Self-test 896K passed!
    [Wed Sep 05 23:19:20 2012]
    Self-test 768K passed!
    Self-test 768K passed!
    Self-test 768K passed!
    Self-test 768K passed!
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