Thread: Power supply?

  1. #1

    Power supply?

    It's My intention to get a new computer soon probably Gateway - Desktop / Intel® Core™ i5 Processor / 8GB Memory / 1TB Hard Drive from best buy( cant post links yet)

    now I have a nvidia 9800 graphics card, but intend to upgrade probably in a year or so, how important would it be to get a better power supply, and if I do need one im finding it hard to find one without reviews that say they fry out after a year.( the above comp has a 300W)

  2. #2

  3. #3
    Quote Originally Posted by Azkalani View Post
    how important would it be to get a better power supply
    Very important.
    500-600W will power pretty much anything if you don't do SLI/Crossfire.

  4. #4

  5. #5
    http://www.newegg.com/Product/Produc...82E16817371048
    very reliable & powerful, and cheap to boot.
    If the radiance of a thousand suns were to burst at once into the sky, that would be like the splendor of the Mighty One... now I am become Death, the Destroyer of Worlds.

  6. #6
    Deleted
    Rule of thumb:

    Desktop PC + Mid-Range (~200 dollar) GPU require roughly 350 Watts of power. A 400 Watt PSU should be used in case you want tp upgrade at some point.

    Desktop PC + High-end (300+ dollar) GPU require roughly 400 Watts of power. Same rules apply.

    Desktop PC + Dual GPUs in SLI or Xfire require 550 (Mid-Range) or 600 (High-end) Watts of power.

    The suggested 600 Watts PSU is a little excessive but will give you plenty of room for future upgrades and overclocking.

    Here's a calculator: http://extreme.outervision.com/PSUEngine
    Last edited by mmoc433ceb40ad; 2011-08-13 at 11:44 PM.

  7. #7
    Quote Originally Posted by Crowe View Post
    Rule of thumb:

    Desktop PC + Mid-Range (~200 dollar) GPU require roughly 350 Watts of power. A 400 Watt PSU should be used in case you want tp upgrade at some point.

    Desktop PC + High-end (300+ dollar) GPU require roughly 400 Watts of power. Same rules apply.

    Desktop PC + Dual GPUs in SLI or Xfire require 550 (Mid-Range) or 600 (High-end) Watts of power.

    The suggested 600 Watts PSU is a little excessive but will give you plenty of room for future upgrades and overclocking.
    Here's a calculator: http://extreme.outervision.com/PSUEngine
    Except that most 400W PSUs in fact have about 300-320W on the 12V rail and if you put them on a configuration that requires 350W they will blow up. And you need to take in mind capacitor aging for at least 3-4 years ahead.
    300-350W configuration is good with a quality 500-550W PSU.
    400-450W configuration is good with a quality 600-650W PSU.
    An example for a 400-450W configuration is i5-2500k with a GTX 580.
    Last edited by haxartus; 2011-08-14 at 12:38 AM.

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