BFG Geforce 7800 GS OC AGp, will my powersupply be enough?

I'm trying to get a new AGP card over my GF 6800 128mb, so I can be good for another year before I upgrade to PCI-E. One problem, on the BFG site it states it requires "A minimum 400W system power supply (with 12V current rating of 20A or more)". My powersupply has 420W, but on the 12V it is only 13A. No idea what it means, but is being 8A short going to be a problem? This is my powersupply.

Anyone got an idea if I'm going to able to run the card on my powersupply? :?:
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  1. Yes, it's going to be a problem. That is a super cheap PSU, less than $20 on NewEgg. Make a good investment towards your new system and get a decent PSU. Otherwise, investing in the video card is a waste of money, and you're at risk of blowing not only the PSU, but other stuff, too. Look at the "sticky" in the power supply forum -- PSU 101.
  2. Don't press your luck, sorta like madmurph said. This would even sufficent and comes at a fair price:

    http://www.newegg.com/Product/Product.asp?Item=N82E16817153044
  3. Your PSU will not be enough. Get something like this to be safe and its 54 bucks. With 2 year warranty.

    http://www.newegg.com/Product/Product.asp?Item=N82E16817104954
  4. Sarsoft:

    He needs a new PSU, you need a new quarterback. My condolences.
  5. Oh cant read. I think your eyes are playing tricks on you buddy read again my post.
    Dont mess with REX or he will bite your head off.
  6. Thanks. I think I should buy this so when I upgrade to PCI-e later on I can still use this power supply right?
  7. It won't last a lifetime so to speak, but guaranteed if their is no flaws in the beginning when hooking and setting the powersupply up, you will have it for a good long time.
  8. Quote:
    Thanks. I think I should buy this so when I upgrade to PCI-e later on I can still use this power supply right?

    It all depends what PCI-e card you are going to get. Also if you plan to buy a video card year from now different video cards will emerge and no one knows what the PSU requirements are going to be for a video card. You will probably have to buy a different PSU year from now. Thats how technology envolves.
  9. Well I guess if i got a PCI-e system and something like a Geforce 8800GTX as an upgrade later on this power supply would work. It requires a PCI-e compliant power supply, 450W, and a combined 12V rating of 30A or more and that one fits the shoe. But then again I'm not sure if that would be for sure the card I would upgrade, so I guess I'll just worry about getting a PSU that will work for this card. Thanks everyone
  10. FSP Group (Fortron Source) AX450-PN will be pleanty for the 7800gs but not 8800gtx. You are going to be looking for something more powerfull for 8800gtx. 8800gtx need around 33-36amps on +12V rails. If you plan to go with single 8800gtx these PSU's will be pleanty to power that card.

    These will give you plenty of power to OC. These will work with only one 8800gtx and not in SLI mode. You will need around 54-56 amps with two 8800gtx in SLI mode.
    Antec NeoPower NeoHE 550 $110 42A
    http://www.newegg.com/Product/Product.asp?Item=N82E16817103941
    CORSAIR CMPSU-520HX $130 40amps
    http://www.newegg.com/Product/Product.asp?Item=N82E16817139001
    FSP Group (Fortron Source) FX600 $120 48amps
    http://www.newegg.com/Product/Product.asp?Item=N82E16817104025
    SILVERSTONE ZEUS SST-ST65ZF $140 42amps.
    http://www.newegg.com/Product/Product.asp?Item=N82E16817163108
  11. Hmm those might be a little more than I want to spend on a powersupply since I got to buy the card too. I suppose its better to just get a ~$50 one that will be good for this card now, since I don't even know exactly what I will upgrade to later on. Plus maybe they'll get cheaper as time goes on? Or does PSU price pretty much stay the same? Haven't noticed the pricing trend of PSU's.
  12. Preaty much the prices do go down a little. Usually new PSU models will appear and older models are going to be discontinued. Remember 8600 and 8300 and r600 are on its way.
  13. I didn't want to order the PSU from online, but the only PSU I found that was fairly cheap at my local frys was this one.

    http://www.newegg.com/Product/Product.asp?Item=N82E16817371004

    I read the PSU reference thread and didn't see them mention Antec Basiq, so I don't know if its any good. I also saw a Thermaltake pure power 500W and have enough amps for the same price. Are either of them okay?
  14. Pretty sure its this one.

    http://www.newegg.com/Product/Product.asp?Item=N82E16817153028

    The Antec Basiq looks to be better since it has 18A on both 12V, while Thermaltake has 14A and 15A. They cost the same too.
  15. Which ever you pick will be enough for your system.

    Good luck.
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