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Best PSU for my rig?

Last response: in Components
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May 20, 2010 9:42:57 AM

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.

More about : psu rig

May 20, 2010 10:02:16 AM

My outcome was 528w, but that seems a little low.
Related resources
a b ) Power supply
May 20, 2010 10:47:22 AM

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=...
http://hardocp.com/article/2007/12/04/corsair_vx550w_vs...

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=...



May 20, 2010 10:52:37 AM

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=...
http://www.hardwaresecrets.com/article/526

CORSAIR VX550 (by CWT):

http://www.jonnyguru.com/modules.php?name=NDReviews&op=...
http://hardocp.com/article/2007/12/04/corsair_vx550w_vs...

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=...


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?
May 20, 2010 10:53:24 AM

Say* not so.
a b ) Power supply
May 20, 2010 10:56:52 AM

Yes, a 500-550W PSU is able to handle it
a b ) Power supply
May 20, 2010 11:13:11 AM

Don't worry. You won't have any problem at all. You can conect all the fans you want to that PSU.
May 20, 2010 11:17:44 AM

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.
a c 91 ) Power supply
June 2, 2010 7:42:32 AM

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..
a c 243 ) Power supply
June 2, 2010 11:16:25 AM

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.
!