Help power supply

BenjoNi

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Jul 21, 2010
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18,510
Hello every one I have built my own computer out of diferent components (srry for bad English) and I need to know which power supply I need (wattage=)) ok lets start:

MB: I realy dont know the name but I know that it supports all other components down there and it costs about 150$

PROC: AMD Phenom II 945 3.0GHz

RAM: 2GB ddr2 kingston

HDD: WD Caviar 500GB

LG DVD/RW

GC: ATI HD 5870 1GB DDR5

so I need you to tell me which power supply I need to buy to run all this components
 

BenjoNi

Distinguished
Jul 21, 2010
6
0
18,510
well I live in Bosnia in my country.. one HD5870 costs 1000KM or converted into USD 700$ :D so 550VX is enough you say :D because one worker in computer shop (I dont belive him) said that this card needs 1000W power supply I throught that he is crasy I think he just is trying to steal cash from me
 
Thats the one.
Here is what Sapphire says about its HD 5870 power requirements:
System Requirements: http://www.sapphiretech.com/presentation/product/?leg=&psn=000101&pid=337

# PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard.
# 500 Watt Power Supply is required.
# 600 Watt Power Supply is recommended for CrossFireX™ System.
# 2 X 75Watt 6-pin PCI Express power connector is required.
# 4 X 75 Watt 6-pin PCI Express power connector is required for CrossFireX™ system.
 
Yes the guy at the computer shop either doesn't know what he's talking about, or does not have your best interest at heart. A system with a 5870 will use approximately 350 watts under maximum load, which would not be achieved through gaming alone, so a 550 watt PSU gives you plenty of headroom.