Will my PSU be enough?

[agill]

I am doing my first build and I think that I have found all the right parts. However, I would like to make sure that my PSU be enough for this setup.

I am worried about the PSU because the newegg calculator says that I need about 711 watts, and the PSU I would like is only 700 watts.

Here is the build:

ASUS Sabertooth 990fx mobo

AMD fx-6100 processor

Two GeForce GTX 560 GPU

Corsair 8gb (2x4gb) DDR3 1600 RAM

Two 320gb internal hard drive

Blu-ray Drive primary

DVD combo Drive secondary

Cooler master Haf 942 case

Cooler master m700 700w PSU

CPU cooler Hyper 212+ coolermaster



Will the PSU be able to handle this load?

 

[ilysaml]

yes it will, but can't you push your budget a little bit high and get more reliable PSU?

 

[davcon]

Psu calculators are BS and designed for noobs so they spend more money on psu's they don't require.
A 500W unit would run your specs.
The unit you've selected is good and will provide power to spare.

 

[Quaddro]

PSU Calculator isn't accurate..you can't rely your decision on it..

let's count it manually on full load condition..
mobo = 50 watt
processor = 127 watt
gpu = 2x 162 watt
hdd = 2x15 watt
memory = 5 watt
optical disk = 2x15 watt
fans = 10 watt

your system just need 576 watt in full load condition..

700 watt psu is pretty safe to use..

 

[davcon]

Ok i didn't pick-up the SLI config.
You need to select a better psu.
Why?
The CM doesn't provide enough gpu pins.
Only two, you need 4.
http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007657%20600014023&IsNodeId=1&page=3&bop=And&CompareItemList=58%7C17%2D139%2D021%5E17%2D139%2D021%2DTS%2C17%2D182%2D073%5E17%2D182%2D073%2DTS%2C17%2D116%2D015%5E17%2D116%2D015%2DTS%2C17%2D703%2D027%5E17%2D703%2D027%2DTS
Personally i'd buy one good gpu like a 570 or 560ti 448.

 

[agill]

Ok well, since it can't run SLI then I am going to get a different PSU that has around 700 watts.

Thanks

 

[fb39ca4]

The mobo pulls very little power, more like 20W. Also, you shouldn't have a problem using molex->PCIe adapters to power the GPU with that PSU.

 

[davemaster84]

I'd suggest to use the thermaltake power calculator, it's accurate enough at least for my taste. Anyway the psu's hardly deliver more than 80% it's capacity , at least the once bronce labeled. In my opinion go for a 900w psu like the antec current gamer, it will not only be good but you'll be able to add a lot of things in the future, like cold cathods, lcd front panels or whatever 😛

 

[ko888]

For a system using two GeForce GTX 560 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 600 Watt or greater power supply that has a combined +12 Volt continuous current rating of 37 Amps or greater and that has at least four 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Total Continuous Amperage Available on the +12V Rail(s) is the most important.

The Cooler Master Silent Pro M700 (RS-700-AMBA-D3), with its combined +12 Volt continuous current rating of 50 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is electrically sufficient to power your system configuration with two GeForce GTX 560 in 2-way SLI mode.

The only problem is that this power supply unit is deficient by two PCI Express supplementary power connectors so you will have to resort to using a couple of 4-pin Molex peripheral to 6-pin PCIe adapter cables (usually included in the graphics card package).

You can always get a better power supply unit that actually has four PCI Express supplementary power connectors.