Sign in with
Sign up | Sign in
Your question

PSU for radeon HD 5770 under $ 60

  • Power Supplies
  • HD
  • Corsair
  • Radeon
  • Components
  • Product
Last response: in Components
November 27, 2009 3:56:33 PM

I found this corsair PSU for $40 after rebate, and it's here

should it be able to power the system in the signature along with the 5770 here?

More about : psu radeon 5770

November 27, 2009 4:26:37 PM

well, i went ahead and ordered it anyway

Best solution

a c 248 ) Power supply
November 27, 2009 4:43:12 PM

The Corsair VX450 with a +12 volt rail rated at 30 amps is an excellent choice for a system with a single ATI radeon HD 5770 video card.

Corsair power supplies have a reputation for high quality. They consistently earn high marks in technical reviews. They are stable, reliable, and come with either a 5 year or 7 year warranty depending on the model.

The general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the 12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the 12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 5770 video cards which use less power due to its energy efficiency.

Here are the ATI recommended power supply requirements for the new ATI Radeon HD 5770 and 5750 video cards:

450 Watt or greater power supply with one 75W 6-pin PCI Express® power connector recommended

600 Watt and two 75 watt 6-pin connectors for ATI CrossFireX™ technology in dual mode

That's for the entire computer system.

5770 Technical review:

Related resources
a c 144 ) Power supply
November 27, 2009 4:45:03 PM

A 5770 needs around 8 amps max, so the 30 amp 12 volt rail should power a basic system - even overclocked - with two or three drives.
a b ) Power supply
November 27, 2009 5:13:05 PM

the ocz fatality 550 watt is bout $65
November 27, 2009 6:04:23 PM

Since my current setup has a 300W, and the only thing I will be changing is the GPU, the new PSU should easily handle the system, right?