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Is it possible to run a 300W GPU w/ a 268W PSU?

Last response: in Graphics & Displays
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May 19, 2012 11:38:28 PM

Hello, I have my eyes on a Galaxy GeForce GPU

http://www.bestbuy.com/site/Galaxy+-+GeForce+GT+520+2GB... gt 520&cp=1&lp=3

The requirments mention a 300W power supply. Now this may be a stupid question, but I have a system with a 268W max PSU right now,

(the box says COMBINED POWER ON +5V AND +3.3V RAILS NOT EXCEED 175W Max
COMBINED POWER ON +12V AND +5V RAILS NOT EXCEED 268W Max)

and was wondering if I had to shell out the extra coin for a new PSU, at least at the moment as I don't plan on pushing my system with things like gaming right now.

Thanks

More about : run 300w gpu 268w psu

a c 263 U Graphics card
May 19, 2012 11:49:56 PM

The amps available at 12v is more important than the wattage.
Since the card you listed does not need a auxiliary 6 pin pcie power lead from the psu, it will be entirely powered by the pcie slot.
Most likely, your psu will be adequate if it is of reasonable quality.

If it turns out that you really need a better psu, you can buy an excellent Corsair 430w unit for $25 after rebate:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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a b U Graphics card
May 19, 2012 11:50:50 PM

Technically, yes, should you? no Most descent powersupplys can work beyond thier specification, but the chance of failure increases exponentially.
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May 19, 2012 11:54:03 PM

Thats good to hear, thank you, but just to be clear, I do plan on upgrading the PSU but I need the GPU now. I don't plan on doing anything extensive with my PC now, or at least more than my current 528MB GPU could handle. I should be okay, right?
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a c 87 U Graphics card
May 19, 2012 11:54:28 PM

Running a PSU beyond it's rated amperage increases chance of failure and decreases longevity substantially. I do not recommend doing it. If that PSU fails, it might take the graphics card (among other hardware) with it.
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May 19, 2012 11:55:39 PM

And thanks for the PSU link geofelt, that looks great!
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