easy way to stress my comp?

Discussion in 'OT Technology' started by piratepenguin, Jun 23, 2008.

  1. piratepenguin

    piratepenguin New Member

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    to 100% cpu?

    on ubuntu, so is there a command or basic script?

    also, what is an unsafe temp for an athlon xp - is 69 deg C?

    edit: 71.. predicting off SOON... gimme this stress test and I can make it quick!
     
  2. P07r0457

    P07r0457 New Member

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    um you don't want a stress test... 71 C is already too hot... And the Athlon XP series of CPUs did NOT have any thermal control so I would not push it further. It will overheat and kill itself, unlike Intel CPUs or later Athlon 64's. You need to fix your cooling problem PRONTO.
     
  3. piratepenguin

    piratepenguin New Member

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    I pulled it out from the wall, turned off some apps and it's down to 62.

    I thought it would go off if it hits 75 or thereabouts? Defo No?
     
  4. deusexaethera

    deusexaethera OT Supporter

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    I've overheated my Athlon XP dozens of times -- once when I had the bright idea to see how fast it would overheat with no heatsink. Once it hit 100C (which took about a second and a half) it shut right down, at which point I touched the die and burned the CPU info into my fingertip. That felt good.

    Anyway, Athlons are as susceptible to heat-related failure as any other chip -- their real weakness is the lack of armor above the die, to distribute the weight of the heatsink more effectively. Without a shim surrounding the die, heat-cycling the chip can cause the carrier to fail -- but the heat won't kill the chip directly, at least not any more often than any other brand of CPU.
     
  5. deusexaethera

    deusexaethera OT Supporter

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    71C is hot, but before I got a better case, my Athon XP 3000+ would regularly hit 85C under heavy use. It's still in operation to this day. As hot as his chip is at idle, it's actually pretty unlikely to go much higher running a benchmark.
     
  6. P07r0457

    P07r0457 New Member

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    We had a Duron that we used for testing mobos back when S-462 was the "dope shit dawg". We called it the "Mighty Duron" because we couldn't kill it. The die had turned to dust on the edges and we ran it without thermal paste, and just all-around abused it (was taken in and out of hundreds of mobos) and it lasted for at least a year (which was amazing to us).

    However, that doesn't change the fact that AMD did NOT include thermal protection on their dies. some motherboards included a thermister and could shut the system down, but that is not cpu thermal control. If the motherboard didn't have it, or the thermister was damaged or mis-calibrated, the chip would literally burn itself up.

    Intel, on the other hand, would let you take the heatsink off the cpu and the cpu would throttle itself down to mere megahurtz to save itself -- the machine would remain on and stable.

    There was a cool demo video done where they setup two machines (one AMD and one Intel) and they started a Doom or Quake demo. Then they removed the heatsink on each, with the game demo running. The AMD had a nice plume of smoke and the system failed. The intel kept running, and the game demo grinded to a hault and it went from very fluid motion to only rendering a frame every second or two. When the heatsink was re-applied to the intel chip the demo ramped back up to full speed (showing the Intel CPU was very good at throttling down to save itself, and throttling back up for performance when it was safe).
     
  7. DAN513

    DAN513 OT Supporter

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    I remember that video on tomshardware.com
    The athlon actually showed flame IIRC.
     
  8. deusexaethera

    deusexaethera OT Supporter

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    Well, that's nice, if you want to run sans-heatsink, but as long as he's got a heatsink on there and a reasonably late-model Athlon motherboard, he'll be fine.
     
  9. crontab

    crontab (uid = 0)

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    a couple simple while loops will peg your cores to 100%

    while [ 1 = 1 ]
    do
    echo "I wanna fuck you in the ass" > /dev/null
    done
     
  10. deusexaethera

    deusexaethera OT Supporter

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    It might use 100% of the CPU cycles, but something that simple is pretty unlikely to stress the CPU at all. So few circuits will be used in that little loop, he might as well just run the System Idle Process at full-throttle. (CPUs must always have something to do, or else they reboot, remember?)

    He really needs a benchmark. Just download 3DMark and see what it does.
     
  11. Limp_Brisket

    Limp_Brisket New Member

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  12. P07r0457

    P07r0457 New Member

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    heatsinks used to be just hunks of metal. now they have fans... you know why? Because a chunk of metal is not able to efficiently transfer heat to ambient air quickly enough to prevent system failure -- a fan is neccessary to assist. It's also why systems fail shortly following a fan's failure.
     
  13. Limp_Brisket

    Limp_Brisket New Member

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    http://www.youtube.com/watch?v=Hqu9qs4blZQ&feature=related
     
  14. Ameter

    Ameter Active Member

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    link to this vid? I'd like to see it

    edit nvm
     
    Last edited: Jun 23, 2008
  15. EkriirkE

    EkriirkE Zika Xenu OT Supporter

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    anything java is a huge tax on (and a good test of) resources :hsugh:
     
  16. Doomsday

    Doomsday XXX

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  17. piratepenguin

    piratepenguin New Member

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    Thanks for the help.. 71 deg is crazy.

    I bunged in a bunch of fans, now at fair load it is down to 49 deg! amazing :big grin:

    PROBLEM SORTED. at last. i feel good.

    thank yooous and especially you jolly (there, I said it)


    weeeeeee
     
  18. Peyomp

    Peyomp New Member

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    Tell it that its not good enough.
     

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