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Is your CPU stable on OCCT's Linpack @ Max setting?

Discussion in 'Overclocking & Cooling' started by Studabaker, May 8, 2009.

  1. Studabaker

    Studabaker New Member

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    Here's a stability test that I hadn't heard too much about.

    Everything is stable on my computer except for this, it fails out at some point (so far between 15-25 minutes). It also drives temps ridiculously higher than Prime or Orthos at CPU burning settings will run, my cores were hitting 75 when Orthos CPU stress gets them to 63 or so.

    I'd like to know if all those insane overclocks out there are as stable as the overclocker would like to think they are.
     
  2. alexp999

    alexp999 Staff

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    Linpack is designed more for testing your cooling setup than stability really. Its programmed to make insane amounts of heat. Its actually written by Intel themselves. I darent run it for an hour to see if its stable, lol.
     
  3. AllHopeIsGone1 New Member

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    I'll stick to Prime95.
     
  4. newtekie1

    newtekie1 Semi-Retired Folder

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    My 3.6GHz 24/7 clock is stable with LinPack. My 4.0GHz clock speed is not, though it is stable with everything else, LinPack is actually what made me lower the clock back down to 3.6GHz.
     
    Crunching for Team TPU 50 Million points folded for TPU
  5. Studabaker

    Studabaker New Member

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    Hah, man! I bet Linpack would destroy most people's 'stable' overclocks!
     
  6. Urukland

    Urukland New Member

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    Linpack is the intel burn test :rockout:. It put the heaviest stress in the cpu, more than any other stress software like orthos or prime. Not bad to know the limits of your cooling system, but i prefer run 8 instances of prime instead, because it test better the stability of ram. Sometimes a rock solid oc in linpack fails in prime95 in minutes.
     
  7. alexp999

    alexp999 Staff

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    Where the hell does linpack find 3gb of stuff to shove in the ram??

    Temps reached about 70*C (OCCT temps are wrong for my Q6600, they reported 80*C :eek: )
     
  8. ShadowFold

    ShadowFold New Member

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    Nope. Just let it run for 30 minutes and it's still stable. Only 56c too.
     
  9. Studabaker

    Studabaker New Member

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    Nice! Our specs are pretty off though. When I get a HAF 932 and a Xigmatek HSF I'll do the test at 3.6 and let you know how the E7400 pairs up to your PII X3.
     
  10. ShadowFold

    ShadowFold New Member

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    I've already owned an e7200, nowhere near as fast :p
     
  11. p_o_s_pc

    p_o_s_pc F@H&WCG addict

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    hell no mine isn't after about 20min temp peaked to 92c and it failed :eek: how can it get that hot using a Xigy 1283 and MX2? my clock is stable for over 24hrs of orthos and ~2 weeks of folding and bonic so far
     
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  12. Binge

    Binge Overclocking Surrealism

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    Try running Core Damage :D
     
  13. Studabaker

    Studabaker New Member

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    Aha, so we have another. Those temp readings are probably off for you indeed, but wow, that's still hot even if you're getting temp readings off by 10 degrees.

    Also, you've got a mighty OC + voltage on that little chip.
     
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  14. p_o_s_pc

    p_o_s_pc F@H&WCG addict

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    stock is 2.5ghz running 3.125(3125mhz) stock voltage for my chip is 1.18v running 1.36v :laugh:
     
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  15. p_o_s_pc

    p_o_s_pc F@H&WCG addict

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    almost an hour of core damage btw Nextsensor seems to read my temps the best Everest gave me WAY TOO HIGH readings so i don't think it got 92c or close to it 40c seems about right but nxsen doesn't read my v-core right CPU-z shows it 1.36v but that doesn't matter to me all that i want to know ATM is what one has the right temps

    so hows this (btw this is 3ghz 3.125ghz wasn't stable for this test but is 24hrs orthos stable so i will set it right on 3.1ghz for 24/7
    [​IMG]
     
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  16. hat

    hat Maximum Overclocker

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    Yep, sure is. I don't run anything unless it's absolutely stable. That's how my video card died, running a slightly unstable overclock.
     
    Crunching for Team TPU
  17. Studabaker

    Studabaker New Member

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    That's why I set my vid card back to stock. The 20-30 MHz OCs I get on the core/shaders/mem doesn't even do anything, it makes it less powerful if anything. Case in point I'll never buy another BFG card again.
     
  18. ShadowFold

    ShadowFold New Member

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    My 4850X2 goes from 625 to 720 :p pretty big jump
     
  19. Studabaker

    Studabaker New Member

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    Don't worry, I am thinking there might be an ATI card in my future.
     
  20. Tau

    Tau New Member

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    All my machines are linpack stable.
     
  21. Studabaker

    Studabaker New Member

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    What kind of OCs, voltages and temps are we talkin here.
     
  22. Tau

    Tau New Member

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    9450 @ 3.8Ghz sits in the upper 90's for linpack @ i think ~1.3vcore (could be less havent been in bios for a wile and its not fully tweeked)

    Q6600 @ 3.4Ghz 1.38vcore under water loads in the mid 70's with linpack

    Q6600 @ 3Ghz 1.35vcore loads in the high 80's under linpack

    E8400 @ 4.2Ghz 1.35vcore loads in the high 90's under linpack

    Not sure what the new quad will do though i doubt i will be overclocking this one.
     
  23. Mussels

    Mussels Moderprator Staff Member

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    i ran linpack and only one core loaded. made me sad.

    edit: oh yeah, it as "monitoring for a minute" and i hadnt quit CoH or portal :) woopsies.

    There might be some incompatibility here, every time i run linpack my machine shuts down. Not resets, not BSOD - it turns off. Starting 7 back up there is no "windows has recovered from a serious error" or anything to indicate an actual crash.

    I wonderi f OCCT is reading temps wrong and forcefully shutting down my system...
     
    Last edited: May 8, 2009
  24. silkstone

    silkstone

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    I ran OCCT, at first it wasn't stable. There was something off on the temp sensors. It would jump to 80C and then stop! Once i got it working properly and reading the correct temps my comp was fine and stable
     
  25. Tau

    Tau New Member

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    Probobly because your hitting the thermal shutdown for the CPU.
     

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