Question: How do I know what power supply I will need?
Im going to buy a gtx 680 grphics card.
There are several power supply manufacturers that have a PSU calculator to help you pick a PSU that will have enough to run everything you need to.
I have the GTX 680, and I use a Corsair AX850W PSU, just incase I want to add another one. You would be fine with a 750W, but I stick with 850W. Corsair, Silverstone, and OCZ are great companies to get power supplies from, I just like Corsair the best. The AX850 is 80+ Gold Certified and it is FULLy modular, so it is great for cable management.
You can also go with the 80+ Silver and partial modular HX850 PSU, which I used to use. It's cheaper but still as good.
Hi Again Tyler,
Here's a nice answer for you:
Here is Guru3D's power supply recommendation:
GeForce GTX 680 - On your average system the card requires you to have a 550 Watt power supply unit.
GeForce GTX 680 SLI - On your average system the cards require you to have a 750 Watt power supply unit as minimum.
If you are going to overclock the GPU or processor, then we do recommend you purchase something with some more stamina.
So basically, since you mentioned earlier that you're gonna get a 3rd gen IVY BRIDGE I5 CPU, then I presume that it's the I5-3570K you're getting since it is the perfect gaming cpu to pair up with the GTX 680 AND you wanted a MOBO that is SLI READY right????
Thus, for your Very nice build, a good branded 850W PSU is very IDEAL to have in order to be ready for SLI and still have ample power for overclocking your cpu.
Here is a Good PSU for you:
CORSAIR Professional Series Gold AX850 (CMPSU-850AX) 850W ATX12V v2.31 / EPS12V v2.92 80 PLUS GOLD Certified Full Modular Active PFC Power Supply - $190
OR if you want something a bit cheaper, this would also be good enough:
CORSAIR Enthusiast Series CMPSU-850TX 850W ATX12V v2.2 / EPS12V v2.91 SLI Certified CrossFire Ready 80 PLUS Certified Active PFC Power Supply - $150 ($140 after rebate)
The PSU is one of the MOST IMPORTANT hardware in a GAMING BUILD , thus it is important to get a very decent one that can fully support the other parts.
And I am pretty sure that you can afford it since you're getting the GTX 680 ( NICE =P )
Minimum recommended is about 550W, so to be on the safe side, you should look at 650-700W PSU, or in that range. That gives a bit or reserve capacity.
You need two PCI-E 6 pin power connectors from the power supply to power that card.
1. Go to the Power Supply Calculator: http://extreme.outervision.com/psucalcul…
#2. Put in your specs
#3. You will get a minimum wattage, the power supply needs to have this much on the 12v rail, you can find this in the specs or product images.
I'd recommend an XFX 550W or Corsair HX650 (Corsair has mostly modular, all black cables instead of rainbow ends, also a little more powerful but more expensive).
You don't want to spend an extra $100 on an 850W power supply when you don't need the extra juice.
Last part, Thermal and Power Specs.
A 700W PSU will suffice. Get Corsair TX-750v2.