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Thread: HELP Computer shuts down / hard chrash

  1. #1
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    HELP Computer shuts down / hard chrash

    During timespy loop, the PSU trips off from what appears to be an overvolt protection. Watts at the wall (120v socket) hover around 890-1000W.

    PSU is SeaSonic 1200W (100AMP 12v)

    Rig in the signature.

    Only crashes when GPU's are overvolted to 1212mv and running 1200 core. When I run at stock speeds/clock, no crash.

    Processor is OC to 4.2 but HT is off.

    Am I pulling too much power through the PSU or is it faulty?
    Intel i7 980X
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    GTX 780 TI x 3
    x2 Samsung 850Evo 500GB
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  2. #2
    Join XS BOINC Team StyM's Avatar
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    change your psu.
    based on this calculator http://outervision.com/power-supply-calculator your psu is not enough...

  3. #3
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    Quote Originally Posted by StyM View Post
    change your psu.
    based on this calculator http://outervision.com/power-supply-calculator your psu is not enough...
    But wall is only pulling 800-900 watts. Sometimes a little over 1000 but at ~%80-87 efficiency, that should only equate to 800-900 watts at the PSU, right? 100A 12v rail should be enough, no? What am I missing? I'm %100 with you that this is a PSU issue just not sure why these specs aren't enough (assuming the PSU isn't bad).

    That calculator says I need a 1500w supply
    Last edited by StAndrew; 03-05-2017 at 05:51 AM.
    Intel i7 980X
    12GB
    Asus P6X58
    GTX 780 TI x 3
    x2 Samsung 850Evo 500GB
    Windows 10 Pro 64


    Swiftech Apogee XL2
    Swiftech MCP35X
    Koolance GPU blocks
    360 x1, 240 x1, 120 x1 Radiator

  4. #4
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    its seasonic psu should be capable of that. psu might be faulty. you can borrow same rated psu just to check if its does the same thing. just to rectify where the problem is........
    [FSB<>BCLK]
    3930k@4.6Ghz 1.38v Lapped~RIVGene
    Vengeance Pro 2x8gb @2400mhz 1.65v CL10
    850Evo~GTX 1060 strix
    AX1200i
    Sorry for my bad english

  5. #5
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    Quote Originally Posted by xpower View Post
    its seasonic psu should be capable of that. psu might be faulty. you can borrow same rated psu just to check if its does the same thing. just to rectify where the problem is........
    They run just fine in games and 3D Mark

    I looking to get a FSP BoosterX 450 W and run two GPU's on the two 8 pin connectors. That would offload up to 300W from the SEASONIC onto the BoosterX. The issue is the seller wanted $299... I got him to lower the price to $99 but that's a lot of money to "test" out the theory.

    Big issue is, if I get a new PSU, it has to be the same length or shorter. With a 240mm rad mounted on the bottom of the case, I have about 1mm space between the PSU and radiator.
    Intel i7 980X
    12GB
    Asus P6X58
    GTX 780 TI x 3
    x2 Samsung 850Evo 500GB
    Windows 10 Pro 64


    Swiftech Apogee XL2
    Swiftech MCP35X
    Koolance GPU blocks
    360 x1, 240 x1, 120 x1 Radiator

  6. #6
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    I've been using the VisionTek Juice Box VT-450CD 450W for 10 yrs.
    Made by FSP works great.Paid $100 brand new ,I believe its 85%@ 300w
    Powered sli 285's & 580's
    Main psu is corsair HX650
    Last edited by Hell Hound; 03-27-2017 at 03:50 AM.



  7. #7
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    Quote Originally Posted by Hell Hound View Post
    I've been using the VisionTek Juice Box VT-450CD 450W for 10 yrs.
    Made by FSP works great.Paid $100 brand new ,I believe its 85%@ 300w
    Powered sli 285's & 580's
    Main psu is corsair HX650
    Ha! I just bought a FSP BoosterX 300watt. I'm running it to two 6 pins on two cards so it should only be running at ~150W. GPU's are now running at 1226 and I think I have more head room; going slowly. Before, 1213 core artifacted and shut down. 1200 just shut down. So it definately was a power issue.

    But it doesn't make any sense at all.

    The maximum watts I'm meausring at the wall is about 1020W, with average around 950 - 970 watts. Assuming ~%90 efficiency (the Seasonic is Platinum rated IIRC) this means the peak load on the PSU is ~920ish watts. 1200 should be plenty. And this is calculated with the FSP 300W boosterX (uses the same power strip) which would incure even more power loss in efficiency so peak load requirements are probably a few watts lower.

    Is my PSU bad? I have plenty of case circulation and CPU/GPU's are watercooled

    I know back in the day some PSU's were unable to completely load the 12V rail without a large enough load on the 5V and/or 3V rail... Is that still an issue? Only running two SSD's.
    Last edited by StAndrew; 04-18-2017 at 05:55 AM.
    Intel i7 980X
    12GB
    Asus P6X58
    GTX 780 TI x 3
    x2 Samsung 850Evo 500GB
    Windows 10 Pro 64


    Swiftech Apogee XL2
    Swiftech MCP35X
    Koolance GPU blocks
    360 x1, 240 x1, 120 x1 Radiator

  8. #8
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    Those ti's are prob close to 800w clocked,cpu 350w plus drives,pump and fans.You prob push it hard for too long. I would plug the two 8pin connectors to the third card,The booster is good for 350w 24/7.Was that 1020 during furmark+prime,30 min test should tell us something,lets see what happens then.
    Last edited by Hell Hound; Yesterday at 04:27 AM.



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