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power supply issue

Discussion in 'Overclocking & Cooling' started by nexgenasain, Oct 26, 2010.

  1. nexgenasain New Member

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    Hi all.

    Been doing Furmark test. It keeps freezing to a single colored screen after 50-60 seconds. :cry: Might be voltage to the card I think, but I don't know. No OC to the card (yet), gpu is at 576 core 1242 shader 999 (1998) memory.

    Rivatuner is saying my GPU Sensor supply voltage is at 3.05~3.10. I'm not sure if that's suppose to be at 3.3 or not. My card is the G100/GT200 revision A2 (192sp) gtx 260 by PNY and my powersupply is a antec trio 650 Watt (more than enough for a single gpu I'd think)

    I know furmark is suppose to stress test a card; no problems when gaming so this is all weird to me.
     
  2. nexgenasain New Member

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    nevermind all. bought a voltage meter, looked on psu wiki, test my voltages. 12.000v , 4.96 , 3.28 every where i could check.... perfect psu basically.


    So i cranked up the fan on the gtx 260 to 95% and low and behold it made it through all the burn ins.. i guess 85c is too high (that's when the 260 would stall) , but 79c isn't. go figure. must be 1 weak component on the gtx 260, that doesn't have a temperature gauge and so the whole thing has to be cranked up to cool the whole card.

    btw, the internet is your friend... so much knowledge out there.
     
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  3. streetfighter 2

    streetfighter 2 New Member

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    Welcome to TPU!

    I don't know much about the GTX 260 temperatures but from a quick googling it appears they can get pretty damned toasty.

    If I were you I'd consider reseating the GPU heatsink and applying proper thermal paste (like TX-3/AS5). You can use tools like MSI Afterburner to customize the fan profile (or just set it to 100%) in software. If you've got some cojones you can use NiBiTor to modify the fan profile on the firmware level. (Though changes to the fan profile in firmware might not work if it isn't a reference board.)

    Best of luck! :)
     
  4. nexgenasain New Member

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    Thanks, also reseated the heat sink.. stupid PNY sticker came off tho, but whatever. oc's better now, 740 1512 2400
    However i just got a gtx 460, which oc's to 840 1680 4200 @1.065v ($190 on newegg WOAH) .. being about 25% faster, 20% more power efficient and quieter.. so long gtx 260 off to ebay you go.
     
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  5. Bjorn_Of_Iceland

    Bjorn_Of_Iceland

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    Change the 260s tim and clean of the dust in the sink
     

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