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Hd 5670/6670/gt630 on 300w psu

Last response: in Graphics & Displays
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January 21, 2013 10:56:17 AM

Hello,
I have an ATX 300w psu (atx0300p5wc) which has 19A on the +12v rail, 25A on 5v and 18A on 3.3v rail. will i be able to run any of these graphic cards on my computer as i cannot afford to purchase a new psu at the moment? hd5670, hd6670 or gt630
January 21, 2013 11:17:57 AM

That's just 228w on the 12v rail, and it's probably not a high quality psu. What is your cpu and motherboard? I have my doubts that it will work.
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January 21, 2013 11:52:25 AM

grumbledook said:
That's just 228w on the 12v rail, and it's probably not a high quality psu. What is your cpu and motherboard? I have my doubts that it will work.


oh thanks... my cpu is a hp compaq dx7400, core2duo processor with 2ghz and it has 2gb of ram.. motherboard is msi oab8..
u think it might work?
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January 21, 2013 12:45:32 PM

firestorm91 said:
oh thanks... my cpu is a hp compaq dx7400, core2duo processor with 2ghz and it has 2gb of ram.. motherboard is msi oab8..
u think it might work?


The gt630 should work...the core 2 duo takes up 65W, the card 65W, the ram probably 10W, the motherboard probably 40W. That is 180W used up with 120W left over for keyboard + mouse + any connected USB devices. As for the AMD cards, I don't know.
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January 21, 2013 3:00:23 PM

Not the most power hungry cpu so it might work, but it is a risk. A cheap psu with years on it's back won't be able to handle much. You'd be cutting it close. Something like a 5570 should be safer. The 6570, 6670 and 630(really a rebranded 440) all pull about as much power as they can from the pci-e slot, the 5570 pulls a little less.
I am by no means guaranteeing that the 5570 will work mind you. On an old dell optiplex gx620 that I had, the standard 300w power supply could not handle it. However, your cpu is more power efficient than it's was.

Do you have a gpu installed in it now, or are you running off integrated graphics?
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January 21, 2013 3:16:18 PM

I know a guy who said his 6670 was working on his 220 watt , 4gb ddr3 and athlon II x4 pc.
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January 21, 2013 3:48:37 PM

Go with hd 6670.it will easily work.donot get gt630 really bad.go with hd 6670 it consumes 50w at peak.
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January 21, 2013 11:14:30 PM

I did not have any of these cards but I had the Sapphire HD 4670 and GT 430 Before ( I think they are the older versions of 6670 and GT 630). The HD 4670 is actually faster but I had more problems with it
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January 21, 2013 11:20:27 PM

By the way. It will work with your 300 watt psu. I had that set up for my little brother
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February 18, 2013 7:21:03 AM

i got a 1gb hd6670 ddr5 and it works perfectly without a problem.. finished playing assasins creed2 on high graphics and crysis2 plays like butter.. gotta try newer games though. :) 
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February 18, 2013 7:21:15 AM

Best answer selected by firestorm91.
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February 21, 2013 6:19:30 PM

Congrats on the upgrade, glad to hear I was wrong :) 
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