GTX 280 xfx

Discussion in 'Videocards - NVIDIA GeForce' started by tburt75, Oct 3, 2008.

  1. tburt75

    tburt75 New Member

    Messages:
    5
    Likes Received:
    0
    GPU:
    gtx280
    So i just bought a 700w PSU and a single GTX280.

    When i plugged everything in, the card goes green for a split second then goes red and no image.

    I've taken a meter to all the inputs and all of them are giving me 12v except the +2 on my PSU

    SO i plug in the 6pin, and the 6+2pin and i get green for a second then red.

    I'm running 1 HD, 1 DVD/RW, Intel duo 2.33mgz and other standard stuff. My PSU prior to this was 300W and ran all of that and a decent Radeon PCIe.

    I don't know what the problem could be, if the light was red permanantly i'd get a new PSU, but the quick green on power-up and then red is got me completely stumped.

    Any help?
     
  2. Cybermancer

    Cybermancer Don Quixote

    Messages:
    13,795
    Likes Received:
    0
    GPU:
    BFG GTX260OC (192 SP)
    Do you get a minimum of 40A on the 12V rail with your PSU?
     
  3. hallryu

    hallryu Don Altobello

    Messages:
    11,386
    Likes Received:
    14
    GPU:
    2x HD7970
    Do you have another card you can try in your rig? That would rule out any other causes if your rig posts!
     
  4. tburt75

    tburt75 New Member

    Messages:
    5
    Likes Received:
    0
    GPU:
    gtx280
    My PSU
     

  5. Cybermancer

    Cybermancer Don Quixote

    Messages:
    13,795
    Likes Received:
    0
    GPU:
    BFG GTX260OC (192 SP)
    OCZ GameXStream OCZ700GXSSLI 700W PSU:
    +3.3@36A,+5V@30A,+12V1@18A,+12V2@18A,+12V3@18A,+ 12V4@18A,-12V@0.8A,+5VSB@3.0A

    I'm not an expert on this, but this would mean that you're only having 36A, instead of the required 40A.
     
  6. TirolokoRD

    TirolokoRD Ancient Guru

    Messages:
    1,934
    Likes Received:
    0
    GPU:
    EVGA 980TI ACX 2
    How you calculate it?, I only see 4 rails with 18amps each.
     
  7. Cybermancer

    Cybermancer Don Quixote

    Messages:
    13,795
    Likes Received:
    0
    GPU:
    BFG GTX260OC (192 SP)
    The GTX280 requires two power connectors. One 8-pin and one 6-pin connector. All in all Nvidia states that the GTX280 requires a minimum of 40A. tburt75's PSU can only deliver 18A per connector. That would be a maximum of 36A. That's at least 4A short. Looking at hardware requirements on Newegg, quite a few GTX280 cards even state that they require a minimum of 42A...
     
  8. tburt75

    tburt75 New Member

    Messages:
    5
    Likes Received:
    0
    GPU:
    gtx280
    I'm trying to get the card out now, believe it or not its so big i can't get to the lever that releases the back of the card >.<
     
  9. tburt75

    tburt75 New Member

    Messages:
    5
    Likes Received:
    0
    GPU:
    gtx280
    I was thinking all three rails were included in the 2 connectors. so the general concensus is get a PSU that pushes 40-42 amps on two connectors - any suggestions? took me like 2 hours to find reliable PSU reviews for just the one i got
     
  10. Cybermancer

    Cybermancer Don Quixote

    Messages:
    13,795
    Likes Received:
    0
    GPU:
    BFG GTX260OC (192 SP)
    I'd suggest to go even a step further and get a good quality PSU, which would even be able to run two GTX280s in SLI - should you decide to go that route one day.

    These are the PSUs that are certified by Nvidia, to support two GTX280s ("GTX280 Certified SLI-Ready Power Supplies"):

    http://www.antec.com/us/productDetails.php?ProdID=22850
    Antec SG-850 850 W

    http://www.atngpower.com.tw/p2-7.htm
    ATNG Power APE-1100X(F) APFC PLUS 950W

    http://www.cwt.com.tw/english/2_product/1_detail.php?ID=922
    Channel Well CWT-1200VC 1200W

    http://www.cwt.com.tw/english/2_product/1_detail.php?ID=921
    Channel Well CWT-1000VC 1000W

    http://www.corsair.com/products/hx1000.aspx
    Corsair HX1000W

    http://www.gigabyte.com.tw/Products...ProductID=2705&amp;ProductName=ODIN Pro_1200W
    Gigabyte Odin 1200W

    http://www.kingwin.com/product_pages/abt1000ma1s.asp
    Kingwin ABT-1000MA1S 1000W

    http://www.mtek.com.br/index.asp?Page=produtos.asp&amp;Id=146
    Mtek Fonte Real Extreme 1200W

    http://www.ocztechnology.com/products/power_management/ocz_elitexstream_power_supply
    OCZ EliteXStream 1000W

    http://www.pcpower.com/power-supply/turbo-cool-1200.html
    PC Power and Cooling Turbo Cool 1200W

    http://www.silverstonetek.com/products/p_contents.php?pno=da1200&amp;area=usa
    Silverstone Decathlon DA1200 1200W

    http://www.thermaltake.com/product/Power/ToughPower/w0218/w0218.asp
    Thermaltake Toughpower (W0218) 1500W

    http://www.thermaltake.com/product/Power/ToughPower/w0171/w0171.asp
    Thermaltake Toughpower (W0171) 1500W

    http://www.thermaltake.com/product/Power/ToughPower/w0216/w0216.asp
    Thermaltake Toughpower (W0216) 1200W

    http://www.thermaltake.com/product/Power/ToughPower/w0133/w0133.asp
    Thermaltake Toughpower (W0133) 1200W

    http://www.thermaltake.com/product/Power/ToughPower/w0155/w0155.asp
    Thermaltake Toughpower (W0155) 1000W

    http://www.thermaltake.com/product/Power/ToughPower/w0217/w0217.asp
    Thermaltake Toughpower (W0217) 1000W

    http://www.xigmatek.com/product/power-nrphc1201.php
    XIGMATEK NRP-HC1201 1200W

    http://www.xigmatek.com/product/power-nrphc1001.php
    XIGMATEK NRP-HC1001 1000W

    (Found here: http://www.slizone.com/object/slizone_build_psu.html)
     

  11. tburt75

    tburt75 New Member

    Messages:
    5
    Likes Received:
    0
    GPU:
    gtx280
    Ok so it's the Amps, i have enough watts just not enough amps.

    You guys rock.

    This is the new PSU i'm looking at

    new PSU

    Thanks a ton guys, very quick responses and very helpful. I'll let you know how it all works out.
     
  12. Cybermancer

    Cybermancer Don Quixote

    Messages:
    13,795
    Likes Received:
    0
    GPU:
    BFG GTX260OC (192 SP)
    You're very welcome. :D

    Check out this review of the PSU you want:
    http://www.hardwarecanucks.com/foru...55-hiper-type-m-800w-power-supply-review.html

    You'll probably be fine, but this part would worry me a bit:
    It's your decision in the end, but investing a bit more money in a good quality PSU would certainly be worth it in the long run. ;)
     
  13. Phantomchess

    Phantomchess Active Member

    Messages:
    87
    Likes Received:
    0
    GPU:
    BFG GTX 280@700/1475/2660
    4 12v rails each 18 amps is 72 amps isnt it? So you should have enough amps. Try switching power connectors on it, and reseating the card. Because you should have enough amps to run it:S
     
  14. Cybermancer

    Cybermancer Don Quixote

    Messages:
    13,795
    Likes Received:
    0
    GPU:
    BFG GTX260OC (192 SP)
    Afaik, he's only able to use two connectors and therefore only 36A.
    I know that it's not as simple as that - to just add the two 12V rails together -, but as a rule of thumb you could use it, afaik.

    I would really appreciate it, if anybody with more experience regarding PSUs, could shed some light on this. :D
     
  15. Cybermancer

    Cybermancer Don Quixote

    Messages:
    13,795
    Likes Received:
    0
    GPU:
    BFG GTX260OC (192 SP)
    Before buying a new PSU, tburt75, try this:

    Try using one PCIe connector from the PSU, and then use a 4pin-to-6pin adapter for the other connector required for the card.

    The adapter should look something like this:
    [​IMG]
     

  16. BCC335

    BCC335 Member

    Messages:
    27
    Likes Received:
    0
    GPU:
    XFX GTX 285/Evga GTX 480
    Power supply questions

    1. I would contact OCZ tech support first. They should be able to answer any questions on how to best connect a GTX 280 using an adapter. Rail distribution is important to meet the required amperage. A 700 watt quality power supply should be able to power that card. However, it does come down to amperage and the way the power supply is configured (rail distribution) and how and where you connect the adapters.

    2. Here is a great site for any power supply questions and recommendations.The guys there are usually very helpful and knowledgeable. They load test, disassemble and review power supplies.

    I recommend you post your situation there if OCZ doesnt get you going. If the power supply cant be made to work they can also give great recommendations for a new quality power supply.

    http://www.jonnyguru.com/forums/forumdisplay.php?f=3


    Good Luck :)
    Bcc335
     
  17. contrvlr

    contrvlr Master Guru

    Messages:
    478
    Likes Received:
    0
    GPU:
    EVGA GTX570HD
    Subtract the combined wattage output of the 3.3 and 5 volt rails (155w) from the combined wattage output of the 3.3,5 and 12v rails (680w) and you end up with at least525w or just under 44 amps of +12v output.
    The card alone has a 236 watt ( 19.66 amp ) rated max power draw ( the 40 amp recommendation is for the system as a whole), The OCZ, unless faulty, has enough power for the system in question.
     
  18. Terrorizor

    Terrorizor Ancient Guru

    Messages:
    1,897
    Likes Received:
    0
    GPU:
    EVGA GTX260 SC
    the key word is "minimum" requirements.
     
  19. GPU

    GPU Guest

    - maybe it's how I'am reading it and I could be wrong , but it's looks like your plugging the power in "HOT"- maybe not the best way of doing it.
    -I would never plug any thing in hot but that's up to you
    -and as far as not having enough power - at idle the card won't draw the max.
    -are you missing any power plugs to the MB -power to the PCI-E ?
     
  20. W@w@Y

    W@w@Y Ancient Guru

    Messages:
    8,133
    Likes Received:
    48
    GPU:
    RTX 3080
    from http://forums.guru3d.com/showthread.php?t=205763

     

Share This Page