Which power supply for 2x RADEON HD5770?

[codymanix]

Currently Iam running GuiMiner on my RADEON HD 5770 graphics card.
I have a main power supply of 500 watts and a MSI 770-C45 mainboard.

Now Iam thinking about to upgrade my computational powers..

Will my hardware be sufficient to run a second graphics card of the same type at the same time?

[ensign_lee]

Assuming your 500W power supply is indeed supplying 500W, then you don't need to upgrade anything. You've got more than enough power right there.

[grue]

Assuming your 500W power supply is indeed supplying 500W, then you don't need to upgrade anything. You've got more than enough power right there.

in other words, get a 600W-700W power supply.

[airdata]

I have a 550w antec truepower powering a 5770 and a 5850

[RyNinDaCleM]

If the PSU is of good quality, it will definitely be sufficient. A good PSU is the best component to spend extra on. A bad PSU can die, and can take some or all of the other hardware connected with it.

[codymanix]

I have a Chieftec GPS-500AB 500W ATX (bought for 70Euros).
Is this a good one?

[ensign_lee]

Assuming your 500W power supply is indeed supplying 500W, then you don't need to upgrade anything. You've got more than enough power right there.

in other words, get a 600W-700W power supply.

wtf? no. He could get by with 300W if he really wanted to.

[flyswatta]

Assuming your 500W power supply is indeed supplying 500W, then you don't need to upgrade anything. You've got more than enough power right there.

in other words, get a 600W-700W power supply.

wtf? no. He could get by with 300W if he really wanted to.

I actually read that as "if he has to ask the question, then he should probably get a 600-700W power supply".  OP will have no power woes!