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Using a weak power supply with a video card.

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  • Power Supplies
  • Graphics Cards
Last response: in Components
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June 18, 2014 11:16:34 PM

Hello guys!

I bought video card GTX 660 which requires 12V and 24A, but I have a PSU which outputs 12V and 18A.
Is it safe to use my current PSU for time while I get a more powerful PSU? I'm not using it for games, only for movies* and browsing for time being.

P.S. This issue hit me when I came to work. :)  I don't wanna burn my GPU.
*Movie quality - DVDRip, if that matters.

More about : weak power supply video card

June 18, 2014 11:22:52 PM

Whats your current PSU ?
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a c 127 ) Power supply
a c 168 U Graphics card
June 18, 2014 11:30:32 PM

Trash it. That PSU does not deserve to exist. I would not trust it to spin a fan.

Get a good 400W+ PSU from the second link in my sig.
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Best solution

June 18, 2014 11:31:54 PM

Should be fine if your only doing light stuff on it.. but you'd need a 4 pin molex to pcie 6 pin adapter.
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a c 127 ) Power supply
a c 168 U Graphics card
June 18, 2014 11:35:44 PM

Uh. No. I doubt that thing can put out more than 250W, and would be well out of spec by that time.
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June 18, 2014 11:36:59 PM

Someone Somewhere said:
Uh. No. I doubt that thing can put out more than 250W, and would be well out of spec by that time.


True but the op said nothing intense. So even 250 would be fine..
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a c 127 ) Power supply
a c 168 U Graphics card
June 18, 2014 11:39:10 PM

Note where I said that it would be well out of spec by then.
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a c 269 ) Power supply
a c 264 U Graphics card
June 18, 2014 11:41:51 PM

Someone Somewhere said:
Trash it. That PSU does not deserve to exist. I would not trust it to spin a fan.

Get a good 400W+ PSU from the second link in my sig.


I absolutely agree. You do not want to stress a cheap piece of junk like that unless you like fires in your case and blown parts.

A GTX 660 needs a recommended 430w power supply.

http://www.realhardtechx.com/index_archivos/Page362.htm


The good news is you can pick up a unit of good to very good quality for around $30-$40 usually.

The Corsair CX 430 is perfect for a low power build like yours and Microcenter has it for $35 after rebate.

http://www.microcenter.com/product/399979/Builder_Serie...

If you don't want to wait on or trust a mail in rebate the Antec BP430 is $43 at Amazon with no rebate hassle.

http://www.amazon.com/dp/B001RTPLUC/?tag=pcpapi-20
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June 18, 2014 11:50:07 PM

anort3 said:
Someone Somewhere said:
Trash it. That PSU does not deserve to exist. I would not trust it to spin a fan.

Get a good 400W+ PSU from the second link in my sig.


I absolutely agree. You do not want to stress a cheap piece of junk like that unless you like fires in your case and blown parts.

A GTX 660 needs a recommended 430w power supply.

http://www.realhardtechx.com/index_archivos/Page362.htm


The good news is you can pick up a unit of good to very good quality for around $30-$40 usually.

The Corsair CX 430 is perfect for a low power build like yours and Microcenter has it for $35 after rebate.

http://www.microcenter.com/product/399979/Builder_Serie...

If you don't want to wait on or trust a mail in rebate the Antec BP430 is $43 at Amazon with no rebate hassle.

http://www.amazon.com/dp/B001RTPLUC/?tag=pcpapi-20


At this point I placed on order Corsair CX600; well if you are saying CX430 is okay than it should be fine with CX600
http://www.corsair.com/en/cx600-80-plusr-bronze-certifi...
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a c 269 ) Power supply
a c 264 U Graphics card
June 18, 2014 11:55:27 PM

Yes it will be fine.
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June 18, 2014 11:59:26 PM

Thank you guys for quick replies. It's shame I can't pick you all as solutions. :) )
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a c 269 ) Power supply
a c 264 U Graphics card
June 19, 2014 12:07:33 AM

Glad to help! :) 
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June 19, 2014 8:19:24 AM

I just want to inform anyone who reads this thread that to avoid any risks I took out my GTX 660 and put back GT 220 which I used previously with my PSU.
As soon as I get my new PSU next week I will put my GTX 660 back.

This probably is the safest solution with current PSU. :) 
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