1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Effects of Overclocking your CPU on WCG

Discussion in 'World Community Grid (WCG)' started by dustyshiv, May 23, 2009.

  1. dustyshiv

    dustyshiv

    Joined:
    Aug 21, 2008
    Messages:
    504 (0.22/day)
    Thanks Received:
    386
    Location:
    Dubai, U.A.E
    Guys,

    I read in WCG FAQ tht overclocking may result in results returned being invalid. I already have four results as invalid in my stats. Is it worth OCing our CPU, increasing the Core voltage thereby increasing the temps? After doing all this, if the results turned up show as invalid..then its a waste of time and energy.

    Whats your opinions on this?
     
    Crunching for Team TPU
  2. MRCL

    MRCL

    Joined:
    May 31, 2008
    Messages:
    5,791 (2.45/day)
    Thanks Received:
    860
    Location:
    Switzerland, Heart of Europe
    I have crunched with oc'ed CPUs only, and not a single result is invalid. You gotta make sure the oc is 100% stable mate.
     
  3. loonym

    loonym New Member

    Joined:
    May 23, 2008
    Messages:
    170 (0.07/day)
    Thanks Received:
    195
    Location:
    Between Hell and Nowhere
    There are a great many tools you can use to ensure a stable oc before putting the machine on the grid.
     
  4. dustyshiv

    dustyshiv

    Joined:
    Aug 21, 2008
    Messages:
    504 (0.22/day)
    Thanks Received:
    386
    Location:
    Dubai, U.A.E
    My 9950 ran stable for one hr on prime 95. AMD overdirve also ran stable for one hour. What other tools do u guys recommend?
    OCed my phenom to 3.1GHz on 1.45V Vcore and 1.3125V Northbridge Voltage.
     
    Crunching for Team TPU
  5. MRCL

    MRCL

    Joined:
    May 31, 2008
    Messages:
    5,791 (2.45/day)
    Thanks Received:
    860
    Location:
    Switzerland, Heart of Europe
    I ran prime95 for three hours once and an error occured. One hour just doesn't cut it.

    OCCT seems to be a recommended tool.
     
  6. dustyshiv

    dustyshiv

    Joined:
    Aug 21, 2008
    Messages:
    504 (0.22/day)
    Thanks Received:
    386
    Location:
    Dubai, U.A.E
    ok guys....will give a shot with OCCT
     
    Crunching for Team TPU
  7. loonym

    loonym New Member

    Joined:
    May 23, 2008
    Messages:
    170 (0.07/day)
    Thanks Received:
    195
    Location:
    Between Hell and Nowhere
    I use LinX, which is a linpack front end, 10 passes, and prime blend, 8hr.
     
  8. Mussels

    Mussels Moderprator Staff Member

    Joined:
    Oct 6, 2004
    Messages:
    42,483 (11.48/day)
    Thanks Received:
    9,763
    use OCCT's linpack test for approx 4 hours. trust me, a lot of people who think their OC's are stable are finding out otherwise lately.
     
  9. hat

    hat Maximum Overclocker

    Joined:
    Nov 20, 2006
    Messages:
    16,949 (5.79/day)
    Thanks Received:
    2,074
    Location:
    Ohio
    Agreed with Mussels. Download OCCT and run the Linpack test. Prime95 just doesn't cut it anymore.
     
    Crunching for Team TPU
  10. a_ump

    a_ump

    Joined:
    Nov 21, 2007
    Messages:
    3,619 (1.41/day)
    Thanks Received:
    376
    Location:
    Smithfield, WV
    i suppose for something like WCG, you hsould use linpack to test stability, but imo there will never ever be an application that can think about straining your CPU like linpack does, so if it's 1hr OCCT stable then imo it's stable at least enough for gaming and other uses or at least that has always worked for me. Never had a crash as long as my CPU passed that test, and Prime95 rofl don't make me laugh 12 hr's to ensure stability is a waste when you can(imo again) run OCCT for 1 hr or linpack in 1hr. With WCG though i can understand getting an invalid result, would be a waste of the hrs spent to crunch the result :rolleyes:
     
  11. Mussels

    Mussels Moderprator Staff Member

    Joined:
    Oct 6, 2004
    Messages:
    42,483 (11.48/day)
    Thanks Received:
    9,763
    i was 8 hours stable in prime95 and OCCT's old test, and rebooted in linpack within 10 seconds. Linpack is a world above the others.
     
  12. a_ump

    a_ump

    Joined:
    Nov 21, 2007
    Messages:
    3,619 (1.41/day)
    Thanks Received:
    376
    Location:
    Smithfield, WV
    hence it's unnecessary, did you ever have a problem when you were stable with old tests? i dout it. Did your system crash often once you'd gone through OCCT's and Prime95's stress tests and passed? i dout it. Linpack is just a new app that goes beyond what's needed to test stability imo, sure you can then say it's 100% stable as if you fail linpack then that means .01% of the time your CPU is unstable so you'll only be 99.99% stable passing other tests. Linpack= bullshit app by intel to stress your CPU unnecessarily.

    i thought of tryin to run linpack, but then realized i haven't crashed in....5 months, when i was overclocking my CPU and found stability with OCCT.
     
  13. grunt_408

    grunt_408

    Joined:
    Aug 5, 2007
    Messages:
    2,027 (0.76/day)
    Thanks Received:
    488
    Location:
    Australia
  14. Mussels

    Mussels Moderprator Staff Member

    Joined:
    Oct 6, 2004
    Messages:
    42,483 (11.48/day)
    Thanks Received:
    9,763
    Yes. after several hours of gaming (4+) i would crash, maybe once every second day.

    Then you would be wrong. you also cant spell doubt.

    "often" is irrelevant. it would crash occasionally, once a week, maybe (if not gaming). A crash is a crash - it still cost me whatever i was doing at the time.
    I crashed most often at idle, the regular tests werent heating my ram up while extended use was - and it would overheat and crash my PC regardless of what i was doing, after about 36 hours of use due to a deadspot in my systems airflow.


    Again, wrong. also mispelled again.


    0.1% of the time being unstable enough to cause a crash, is still unstable. If you arent as stable as you were at stock clocks on the stock cooler... you arent stable.

    If you havent crashed in that long, you probably ARE linpack stable. did that occur to you?
     
  15. grunt_408

    grunt_408

    Joined:
    Aug 5, 2007
    Messages:
    2,027 (0.76/day)
    Thanks Received:
    488
    Location:
    Australia
    [​IMG]
     
  16. Mussels

    Mussels Moderprator Staff Member

    Joined:
    Oct 6, 2004
    Messages:
    42,483 (11.48/day)
    Thanks Received:
    9,763
    OCCT's test is reported to give higher temps than the intelburntest - the names misleading, that test isnt by intel at all, it just uses the linpack files like OCCT.
     
    grunt_408 says thanks.
  17. a_ump

    a_ump

    Joined:
    Nov 21, 2007
    Messages:
    3,619 (1.41/day)
    Thanks Received:
    376
    Location:
    Smithfield, WV
    lol i can spell doubt, its just a habit from aim messaging, the less it takes for me to say what i'm thkin the better. dam, yea your oc definitely wasn't stable, once a week is kinda disgusting lol i run my system almost 24/7, turn it off sometimes once a week. so running like 23.99/7 and no overheating problems with my ram, and they don't have fancy coolers at all. lol no it didn't occur to me that i may be linpack stable, though it seems 333.3 @ 1.24v idle 1.22v load is really stable but anything higher isn't near as stable as my 3ghz setting, that's why i set it there 24/7.
     
  18. dustyshiv

    dustyshiv

    Joined:
    Aug 21, 2008
    Messages:
    504 (0.22/day)
    Thanks Received:
    386
    Location:
    Dubai, U.A.E
    Ok Guys,

    Finally found a solution on the Corsair forums. Seems that many people are having issues runnin Dominators 8500C5 sticks in Dual channel mode or at 1066MHz. They say tht the memory controllers on the Phenoms have issues.

    http://forum.corsair.com/v3/showthread.php?t=78335&highlight=phenom

    Solution was to downgrade the speed to 800MHz and check for stability. Did that and bumped the NB voltage. OCed my CPU to 3.1GHz with 1.4V Vcore. Runin stable for 2days without problems. Passed 3hrs of OCCT and 3 hrs of prime 95. But system still wont post with modules in Dual channel mode.
     
    Crunching for Team TPU
  19. Mussels

    Mussels Moderprator Staff Member

    Joined:
    Oct 6, 2004
    Messages:
    42,483 (11.48/day)
    Thanks Received:
    9,763
    well i'm not sure who to blame, corsair, or the phenom?
     
  20. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

    Joined:
    Oct 13, 2008
    Messages:
    13,952 (6.25/day)
    Thanks Received:
    3,787
    Location:
    IA, USA
    Well, AMD's IMC has never been great...

    939, for instance, couldn't run four double-sided sticks at DDR400--it dropped to DDR333.


    As a reference, my two systems (neither are overclocked) have returned 1,079 results with zero errors/invalid.
     
    Crunching for Team TPU
  21. Mussels

    Mussels Moderprator Staff Member

    Joined:
    Oct 6, 2004
    Messages:
    42,483 (11.48/day)
    Thanks Received:
    9,763
    ah yeah, i remember that. i ran 4 single sided sticks.
     

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page