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Will this graphics card run my power supply?

Tags:
  • Power Supplies
  • Graphics Cards
  • Power
  • Graphics
Last response: in Graphics & Displays
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May 16, 2014 1:57:49 PM

Hi all. I just bought a graphics card that needs 350 watts and +12v with 20 amps to run. My power supply has to following output:

+5V 22A MAx -12V 1A max
+5V (FP) 2A Max +3.3V 17A max
+12VA 18A max +12VB 18A max

combined power on +12VA and +12VB rails must not exceed 360 watts
Total combined power must not exceed 375 watts

Should I run into any problems?

Thanks.

More about : graphics card run power supply

May 16, 2014 2:04:44 PM

No. No no no no no no no. Get at least a 600W PSU.
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a b ) Power supply
a b U Graphics card
May 16, 2014 2:06:27 PM

looks like your PSU does not supply 20A on the +12V line, so I would say your PSU is not strong enough.
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May 16, 2014 4:49:54 PM

I want to stay with the power supply I have if possible.

From other things I have read, doesn't the 12VA 18A max +12VB 18A max combine to produce 36 amps?
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May 16, 2014 6:21:35 PM

The problem is that your own power supply is telling you that its maximum output is 375 watts. 12 V at 32 A is 384 watts. I have no idea what they were thinking, putting two 18 A, 12 V rails in it when they can never be used at full output combined, but that seems to be what they did. A CPU alone uses about 10-15 A under full load.

I would say that you need a new PSU regardless of which card you buy. There's no card you can buy that will work any miracles using the small remaining amount of wattage your PSU has to offer.
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May 16, 2014 11:08:34 PM

Thanks for your response, md, but I think you mis-understood. The card requires 20 amps from the 12 V rails, not 32, which I would believe would mean it needs 240 watts. On another board someone told me this should be fine because both 12VA and 12VB 18 amp rails would combine to give me 360 watts and thus 30 amps, which would give me enough ampage and also enough watt power to run it fine. Are they wrong?
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a b ) Power supply
a c 118 U Graphics card
May 17, 2014 1:27:07 AM

First, tells us what graphic card and what power supply you actually have. Stickers doesn't always tell the truth in quality.
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May 17, 2014 4:19:55 AM



The card is a Geforce GT 630, which says it requires 350watts and +12V at 20 amps.
I have no idea what brand the power supply is, it came with the computer. But I have listed its output in detail above.
Thanks.

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a b ) Power supply
a c 118 U Graphics card
May 17, 2014 4:25:15 AM

It should enough but only for that card. Your power supply is a generic brand and prone to easily fail. i would save up money to buy both a newer graphic card and a power supply at the same time when you upgrade. The GT630 isn't a great graphic card for gaming though at 1080p.
What is your cpu?
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a b ) Power supply
a c 78 U Graphics card
May 17, 2014 4:35:06 AM

Seriously, you will be fine, the GT630 uses hardly any power.
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May 17, 2014 11:56:04 AM

Thanks for the reponses. My desktop is six years old. It was high end six years ago, and has worked flawlessly so I see no reason to replace it, and frankly I cannot afford financially to replace it right now. So far I have been able to play every game I have wanted on it, even if not on the highest settings. However, looking to play DragonAge Inquisition coming up and didn't think my old graphics card could handle it. Not even sure if the new one can at minimum settings, but it was time for a little upgrade. The CPU is a Intel Core 2 Quad CPU Q6600 2.40 Ghz
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