Could use some advice on x2 HD 5770's

[nward32]

Here is what the card says:
"450 Watt or greater power supply with 1x 75W 6-pin PCI Express power connector recommended (600 Watt and two 6-pin connectors for ATI CrossFireX Technology in dual mode)"

Now here is my question, will my PSU handle 2 of these? i thought when i got my PSU it would be enough for two cards but now im not so sure. Anyone else running a similar setup or psu?

Thanks guys (girls?...)!

EDIT: Here is another question. The only two games I really play are World of Warcraft and probably going to play Starcraft 2. I don't game very often but when I do I play with some friends. Otherwise I dont think I do anything much graphic intense. Does anyone know if I even really need or will notice much of a difference playing these games with two 5770's?

[xoke]

Here is what the card says:
"450 Watt or greater power supply with 1x 75W 6-pin PCI Express power connector recommended (600 Watt and two 6-pin connectors for ATI CrossFireX Technology in dual mode)"

Now here is my question, will my PSU handle 2 of these? i thought when i got my PSU it would be enough for two cards but now im not so sure. Anyone else running a similar setup or psu?

Thanks guys (girls?...)!

EDIT: Here is another question. The only two games I really play are World of Warcraft and probably going to play Starcraft 2. I don't game very often but when I do I play with some friends. Otherwise I dont think I do anything much graphic intense. Does anyone know if I even really need or will notice much of a difference playing these games with two 5770's?

I think you'll make it ok...but that PSU would be my very next upgrade.

http://media.bestofmicro.com/3/T/226937/original/Power%20Consumption.png

[alegelos]

Hey, i have a MSI 5770, and i just bought a MSI 5770 Hawk.
My system is:

Phenom II 945 - OC 3.84ghz
Asus M4A78T-E
DDR3 1333mhz CL9 T2 Kingstone - OC 1740 CL7 T1 (no heatsink lol)
2 HHD 160gb each Raid 0
8x 12cm CM coolers at low rpm
MSI 5770 x2 (no OC for now)

PSU: Corsair 550 watts

I gues my 550watts are real, so my PSU would be just OK. I know i should change it. But here n uruguay they are vary expencive. Maybe i can run with it, with out any problem i guess.. (no problem for now).
So would be:
250watts for both GPU
100watts for CPU
and
100watts for rest...

am i right?