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Author Topic: Help with PS purchase on 3-4 card setup...  (Read 544 times)
dovewing2000
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August 28, 2011, 07:30:30 PM
 #1

My current config is

Sempron
1 gig of ram
MSI 890FXA-GD70
Cosair TX 650
2x 5850 extreme...

I know it's working on the current setup... but if i want to buy a 5830 or 5870 to expand then what are my options for power supply? I'm probably going to fit max 4 cards... so either 2x 5830 or 2x 5870 or 1x 5830 or 1x5870...

If I want to buy another PSU... how much/little power do i need?
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deslok
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August 28, 2011, 07:53:34 PM
 #2

2x 5870 is going to add 360w(30a@12v) to your power requirements if you were to have four of them you would need 720w (60a@12v) for the video cards alone.

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dovewing2000
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August 28, 2011, 08:22:01 PM
 #3

2x 5870 is going to add 360w(30a@12v) to your power requirements if you were to have four of them you would need 720w (60a@12v) for the video cards alone.

gotcha - so i'll need to get a decent 500/600 watt psu or a single 1200 w one..
deslok
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August 29, 2011, 12:25:29 AM
 #4

For simplicity sake i would advise getting a 1kw single rail psu

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If you found that funny or something i said useful i always appreciate spare change
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