Best PSU for my rig?

Hey crew.


In the next few days I plan to upgrade my graphics card to a Sapphire 5850 and I'm just wondering what PSU I would need.

Specs:
Biostar MOBO
AMD 630 x4 2.8GHz
2GB DDR2 RAM (Soon to be 4gb)
Sapphire 5850
1 DVD Drive
1 250gb HDD (Will be adding more)
Have an LED case fan


I did read the sticky at the top but I'm unsure how much power the other components use. I will need a PSU with 2 6 pin connectors for the GPU and lastly I am in the UK, so I can't use Newegg.

Any help would be greatly appreciated.
11 answers Last reply
More about best
  1. http://www.antec.outervision.com/

    Just visit the above link and fill it up to get the exact wattage requirements for your rig..
  2. My outcome was 528w, but that seems a little low.
  3. The Power Supply Requirement for your whole system is: 500 Watt or greater power supply with two 75W 6-pin PCI Express power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX technology in dual mode)

    The value of 528W indicates that you probably have a generic PSU. Avoid using it.


    If you are not thinking about doing CF, here you have some good options:

    CORSAIR VX550 (by CWT):

    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=62
    http://hardocp.com/article/2007/12/04/corsair_vx550w_vs_hx520w/1

    ENERMAX PRO82+ 525W:

    http://www.hardwaresecrets.com/article/551

    SEASONIC S12II BRONZE 520W:

    http://www.hardwaresecrets.com/article/954
    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=185
  4. Henry Chinaski said:
    The Power Supply Requirement for your whole system is: 500 Watt or greater power supply with two 75W 6-pin PCI Express power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX technology in dual mode)

    The value of 528W indicates that you probably have a generic PSU. Avoid using it.


    If you are not thinking about doing CF, here you have some good options:

    ANTEC EarthWatts 500W (EA 500 - EC) (by Seasonic)

    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=35
    http://www.hardwaresecrets.com/article/526

    CORSAIR VX550 (by CWT):

    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=62
    http://hardocp.com/article/2007/12/04/corsair_vx550w_vs_hx520w/1

    ENERMAX PRO82+ 525W:

    http://www.hardwaresecrets.com/article/551

    SEASONIC S12II BRONZE 520W:

    http://www.hardwaresecrets.com/article/954
    http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=185


    Thanks for the informative reply, but I'm still a bit skeptical. So I was running a very resource hungry game such as GTA IV, Arma 2 or Crysis. Would a 500-550W power supply be able to handle it?
  5. Say* not so.
  6. Yes, a 500-550W PSU is able to handle it
  7. I have yet another question. I was reading one of the reviews when I came across this:

    http://hardocp.com/images/articles/1195006816FdwvxccqEO_2_4.gif

    The 0 fan only connectors worries me since I have this case:

    http://www.overclockercafe.com/Reviews/cases/X-Blade/index.htm

    My current PSU (Which came with the case) plugs directly into the fan, if I get the Corsair one does this mean my fan will become uselss?
  8. Don't worry. You won't have any problem at all. You can conect all the fans you want to that PSU.
  9. Unless anybody has any other PSU's to recommend or any reason not to buy the CorsairVX550 I'm set on buying that. Thanks a lot for your help.
  10. bnot said:
    My outcome was 528w, but that seems a little low.


    The calculations may not consider full load.. Its always wise to opt for a higher wattage PSU.. The corsair VX 550W will surely work but it'll be stretched when in demanding situations.. That'll cause heat and noise also.. Better to opt for a 650 watt unit atleast.. It gives good headroom for minor upgrades in future as well..
  11. Emperus said:
    The calculations may not consider full load.. Its always wise to opt for a higher wattage PSU.. The corsair VX 550W will surely work but it'll be stretched when in demanding situations.. That'll cause heat and noise also.. Better to opt for a 650 watt unit atleast.. It gives good headroom for minor upgrades in future as well..

    The calculator does consider full load, of all components, that's why it's results are as high as they are.
    There's no way the OP's configuration will stress a Corsair 550 watt psu ,and there's plenty of room for upgrades.
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