Power supply and 460 gtx conundrum!

Hi,

I have a 450w power supply (a no name brand I think. 'Win Power'?) which produces 20A on the 12v rail.

The CPU is a Core 2 Duo 8400 (http://www.pcstats.com/articleview.cfm?articleid=2394&page=2).

The graphics card I have bought is the Gigabyte GTX 460 OC2 1GB, which says that it requires a minimum of 450w power supply with 24A on 12v rail and apparently draws 160w maximum (http://skinflint.co.uk/a588631.html). Although it does say that the requirement is based on a system with an i7 running at 3ghz. Thats got to make a difference, right?

My question is (have you guessed yet??)... will it work and will it be safe to try? I don't want the computer to explode!

I would add that I've tried a Sapphire Radeon 6850 Toxic edition, and my computer become erratic to say the least!

Thanks!

Matt
4 answers Last reply
More about power supply conundrum
  1. 450 watts is on the low side. 550 watts or more is recommended by review sites running high powered systems.
  2. Agreed - but would it work? I'm not sure my E8400 can be classed as high power.... can it?
  3. just be safe and don't try it.
  4. zaarin_2003 said:
    Hi,

    I have a 450w power supply (a no name brand I think. 'Win Power'?) which produces 20A on the 12v rail.

    The CPU is a Core 2 Duo 8400 (http://www.pcstats.com/articleview.cfm?articleid=2394&page=2).

    The graphics card I have bought is the Gigabyte GTX 460 OC2 1GB, which says that it requires a minimum of 450w power supply with 24A on 12v rail and apparently draws 160w maximum (http://skinflint.co.uk/a588631.html). Although it does say that the requirement is based on a system with an i7 running at 3ghz. Thats got to make a difference, right?

    My question is (have you guessed yet??)... will it work and will it be safe to try? I don't want the computer to explode!

    I would add that I've tried a Sapphire Radeon 6850 Toxic edition, and my computer become erratic to say the least!

    Thanks!

    Matt


    It should work fine, and no your computer will not explode.
    I have the same settings w/ 450W diablotek PSU, MSi p21 mobo, Core 2 quad 8400 4gb mem, and have been using this card for over 2 weeks now with no power problems. The only power related issue I encounter is when I was playing with the overclocking software, If surpassed 900mhz i would get the low power system warning beep and the computer would shut down if I did not lowered the settings. If your PC shuts down because of low power after overclocking, the video card automatically resets to is low clock settings (649mhz in my case) and everything goes back to normal. Now if you want to overclock it, i would recommend you to upgrade your PSu to at least 550Watts or better. Also if you have a lot of peripherals hooked up to your mobo( card reader, floppydrive, more than 1 cd/dvd drive, using all pci~ pci-e slots, multyy graphic cards) a higher power supply is needed.
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