Is this PSU enough

[jordan009]

is a 500watt antec earthwatss PSU enough to power
-4-8gigs of DDR3
xfx 5770 video card
phenom2 X4 955
1 HD
2USB devices (mouse thingy and usb adapter)
2 120MM fans
cpu cooler (stock or none stock)

 

[moody89]

These are the official recommended power requirements based on your graphics card:

450 Watt or greater power supply with one 75W 6-pin PCI Express® power connectors recommended (600 Watt and two 6-pin connectors for ATI CrossFireX™ technology in dual mode)

This applies to the entire system not just your graphics card.

The Antec Earthwatts are a very good line of PSU and have a reputation for providing high quality power supplies. You should be fine with that PSU. Best of luck!

 

[jordan009]

ok thanks man

 

[davcon]

These are all good and modular the XFX is a good price
http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007657%2050001550&IsNodeId=1&bop=And&CompareItemList=58%7C17-341-018%5E17-341-018-TS%2C17-207-002%5E17-207-002-TS%2C17-371-016%5E17-371-016-S01%2C17-341-017%5E17-341-017-TS