Is my PSU enough to power 280gtx?

I have the 600w OCZ StealthxStream and am about to purchase the 280gtx.

The PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E16817341010
9 answers Last reply
More about power 280gtx
  1. It should work, if it's a typical setup and other components of the system don't draw too much power. There are more to a system than just a gpu.
  2. That card draws a 183W or 15.25A by itself, so you may need to do some rail load balancing.
  3. Zorg said:
    That card draws a 183W or 15.25A by itself, so you may need to do some rail load balancing.

    The rails should balance automatically, don't worry about it. As for power consumption, it'll draw a lot more than just 183w at peak load.
    http://www.techpowerup.com/reviews/Zotac/GeForce_GTX_280_Amp_Edition/23.html
  4. dagger said:
    The rails should balance automatically, don't worry about it. As for power consumption, it'll draw a lot more than just 183w at peak load.
    http://www.techpowerup.com/reviews/Zotac/GeForce_GTX_280_Amp_Edition/23.html
    As far as the rail balancing is concerned, I suggest you read this.
    OCZ StealthXstream 600W Power Supply Review - Hardware Canucks 4- Output Characteristics

    On the peak load power draw point, you missed this.
    Quote:
    In order to characterize a video card's power consumption, the whole system's mains power draw was measured.
  5. I didn't miss it, the 45nm dual (low load during graphics stress) plus one hdd does not make up the difference. Trust me, the card consumes more than 183W at peak load.
  6. dagger said:
    I didn't miss it, the 45nm dual (low load during graphics stress) plus one hdd does not make up the difference. Trust me, the card consumes more than 183W at peak load.
    I would rather believe X-bit labs, since they actually benched it instead of doing some loose calculation, but you believe what you want.

    X-bit labs - ATI Radeon HD 4800 Graphics Architecture: Long Anticipated Revenge? (page 14),
  7. Wait, so that's a no?

    I guess its 260gtx then.
  8. No I never said that, your PSU will run the 280gtx fine. What I said is that you need to ensure that the rails are load balanced properly. In other words separate the various loads so that none of the rails gets overloaded.

    I looked at the rail distribution more closely and the PCIe connectors are set up in such a way that there is really no balancing that can be done anyway, so no problem.

    So although it won't balance automatically, there is no balancing needed or possible based on the rail distribution.

    I won't get into the details, and further confuse the issue. If you want the details look at 4- Output Characteristics in the link above. I should have read it more closely earlier, and cleared it up at the time. My bad.
  9. Considered the 4870? if either money or power may be lacking then the 4870 is the way to go.
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