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Choosing Right PSU for Msi GTX 770 Lightning

Last response: in Graphics & Displays
February 5, 2014 9:33:21 AM

Hello There, i have bought an GTX 770 Lightning from MSI until i realised it dosen't have enough PCI-E connectors , so i went out and searched for few Power supplys and i really can't decide on what should i get for it and what's right for the GPU!
A friend of mine suggests to get two or multi Rail 12V Powersupply for it but few of my friends also say that Just one 12V rail is fine!
My budget is Limited to only ~$100 for now and i need help on what i should get, heres one example that i want to get and really want an answer if it's good enough for the MSI GTX 770 LIGHTNING
that's the only powersupply that i think it's good enough for the GTX 770 LIGHTNING but at the end i want answers if it's good enough, will rails do matter that much and suggestions on any Power suppy around 100 Dollars that will do just fine if the PSU provided above isn't good enough, Thanks!

Best solution

February 5, 2014 9:43:19 AM

Go ahead with it. You have 52A on this PSU's +12V rail & GTX 770 requires 42Amps. It will run without a hitch.
Watts = Amps x Volts
624W = 52A x 12V


If you can find 650W PSU in seasonic or corsair with budget in mind then choose those over coolermaster.
February 5, 2014 9:56:23 AM

I'd recommend corsair's PSU's above others. Not to say CM isn't a big brand, but they aren't the biggest in the PSU market. When it comes to PSU's the big word is reliability.
I have a TX series, the 850 watt. The 750 tested very well. My friend is an electrical engineer and he hooked it up to some testing equipment and found the signal is very, very stable.