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Last response: in Systems
July 21, 2010 1:07:55 PM

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


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

More about : power supply

July 21, 2010 1:37:37 PM

is that sure??? because I dont want to burn 900$ graphics card :D 
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July 21, 2010 1:39:14 PM

srry 700$
a c 139 ) Power supply
a c 90 B Homebuilt system
July 21, 2010 1:40:03 PM

Confirmed. Corsair 550VX is plenty for a single HD 5870, including overclocking and room for expansion, things like extra HDDs, SSD, wifi-card, etc.
a c 139 ) Power supply
a c 90 B Homebuilt system
July 21, 2010 1:41:01 PM

700$ graphics card? Are you talking about the HD 5970? or maybe 2x HD 5870s?
July 21, 2010 1:45:25 PM

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
a c 139 ) Power supply
a c 90 B Homebuilt system
July 21, 2010 2:14:07 PM

Thats the one.
Here is what Sapphire says about its HD 5870 power requirements:
System Requirements:

# 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.
a c 87 ) Power supply
a b B Homebuilt system
July 21, 2010 2:49:03 PM

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.