Is this PSU good?

[mcfe]

Well i don't really have the exact model except its a Chieftec 550 watts or 600 wats

Here is an image of a psu which had almost the same amps as the one my new pc will have
http://www.xbitlabs.com/images/coolers/chieftec-psu-roundup/1p11s.jpg

But the +12V and +12V1 and +12v2 and +12v3 etc they were all 18 amps, does it mean 18 amps or they are multiplied and equaled to 54 amps?

Basically that psu should run the current rig:
AMD Phenom II x4 955BE
HD5850 1GB Sapphire

And i know that the HD5xxx series need at least 30 amps?

Basically there are the parts that use the psu extensively.
the psu i have on the rig is good otherwise it will be underpowered

 

[Upendra09]

you don't need 850 a 550 will be enough

i don't know about chieftec but you don't want to skip out on PSUs if you have a bad PSU the you will never be able to use your computer

this is good and cheap

http://www.newegg.com/Product/Product.aspx?Item=N82E16817341037

OCZ so it will be reliable and it is 80 plus silver so it is very energy efficient

 

[mcfe]

Actually its not the psu from the picture, rather just an example. I was just asking whether those amps are alright for the components in the first post

 

[Shadow703793]

^ Amps on that PSU in theory should be enough, HOWEVER the QUALITY of the PSU matters significantly when providing those amps/voltages (as in voltage stability).

 

[JohnnyLucky]

Here are the official power requirements for the new ATI Radeon HD 5850 and HD 5870 video cards.


ATI Radeon™ HD5850 System Requirements:

PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard

500 Watt or greater power supply with two 75 watt, 6-pin, PCI Express® power connectors.

600 Watt or greater power supply with four 75 watt, 6-pin, PCI Express® power connectors for ATI CrossFireX™ technology in dual mode.


ATI Radeon™ HD5870 System Requirements:

PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard.

500 Watt or greater power supply with two, 75 watt, 6-pin, PCI Express® power connectors.

600 Watt or greater power supply with four, 75 watt, 6-pin, PCI Express® connectors for ATI CrossFireX™ technology in dual mode.

The power supply recommendations are for an entire pc system.