How to choose a PSU

[amgraves08]

Hey all,

I've almost finished a build but now I'm looking for a PSU. How does one go about choosing the best PSU? I know I want a 750W, but what other elements do I need to take into consideration? Thanks in advance for your help!

 

[kapitalistas]

http://www.realhardtechx.com/index_archivos/Page362.htm.this can help.








an update http://www.tomshardware.com/faq/id-2150235/choose-perfect-power-supply.html

 

[Beezy]

Why do u want 750w? Are you running dual graphics cards? will you overclock? Full system specs?... generally stick with antec xfx and seasonic

 

[jaimelmiel]

The video card you are running is a key factor in determining your PSU. Also if you have a lot of extra hardware.
You generally want a tier 1 or tier 2 PSU.

http://www.tomshardware.com/forum/id-1804779/power-supply-unit-tier-list.html
The other links posted are good also. I recommend you get a psu with no more than 2 Rails. Never cheap out on your PSU.

 

[Beezy]

The video card you are running is a key factor in determining your PSU. Also if you have a lot of extra hardware.
You generally want a tier 1 or tier 2 PSU.

http://www.tomshardware.com/forum/id-1804779/power-supply-unit-tier-list.html
The other links posted are good also. I recommend you get a psu with no more than 2 Rails. Never cheap out on your PSU.

2 rails is a good thing I agree, became the ATX standard some time ago I think.

 

[MasterMace]

You need to consider your primary parts respecting 12v consumption as well as the quality of unit. You want your load to be 80% of the 12v rail's amperage. The 2 parts that use the 12v rail are the CPU and the Graphics. There's a running thread as to the Power Supply tier list listed above. This will take you a long time to search everything though.

Right now the best deal on the market is: http://www.ncixus.com/products/?usa...4&vpn=P1750BNLG9&manufacture=XFX&promoid=1452

750W, Tier 1, Silver Certified, $78, 62A on the 12v rail.