Will My PSU power all of these components

[Bossyfins]

So I started my x99 build 3 days ago and this is what the end build will look like
---->http://pcpartpicker.com/p/f4kLYJ
I am worried that the 2 970s will use up all of the PSU wattage. If anyone can confirm my build will be fine, i'll be grateful. The system will be used for playing games (lol, wow, club penguin, tf2, blade symphony, etc) , moving large files from my family's computers to my NAS.

Sincerely Bossyfins

 

[DonkeyOatie]

A single 970 will use about 150W, with very short peaks well over 250W, a bit more if you overclock it. Under normal use, even if you overclock your CPU, you have enough headroom to run two 970s. Are you sure you need the SLI? What resolution? How many monitors? Your EVGA B2 is a very good PSU and will meet or exceed its rating.

 

[geofelt]

Normally, 750w would be what you need for dual GTX970 cards.
But... the particular GTX970 cards you picked need more power than normal, namely a 6 and an 8 pin connector. For that you will need 150w more so look for a 900w psu.

If your build is for gaming, I suggest you will game better with a i7-4790K and a Z97 based motherboard.
You can ditch the liquid cooler, buy ddr3 ram, and keep the psu at 750w which will give you enough to pay for sli GTX980

And... PNY SSD has some 23% unhappy users on newegg
I suggest Samsung or intel which will be 2x better.

 

[DonkeyOatie]

Perhaps I am looking at the wrong card, but..

http://www.guru3d.com/articles-pages/gigabyte-geforce-gtx-970-g1-gaming-review,7.html

 

[Bossyfins]

Normally, 750w would be what you need for dual GTX970 cards.
But... the particular GTX970 cards you picked need more power than normal, namely a 6 and an 8 pin connector. For that you will need 150w more so look for a 900w psu.

If your build is for gaming, I suggest you will game better with a i7-4790K and a Z97 based motherboard.
You can ditch the liquid cooler, buy ddr3 ram, and keep the psu at 750w which will give you enough to pay for sli GTX980

And... PNY SSD has some 23% unhappy users on newegg
I suggest Samsung or intel which will be 2x better.

Thanks for the suggestion, but I also use my system for moving files over 10 gigs from my system to my External HDD NAS. So I rather have 6 cores than just a gaming PC.

As for the SSD, I forgot to say that the ssd that i have will most likely be used for caching, or some other thing. the actual SSD is a 240 gig Samsung evo drive. In addition to that, a 1 tb WD caviar black drive.

 

[Bossyfins]

A single 970 will use about 150W, with very short peaks well over 250W, a bit more if you overclock it. Under normal use, even if you overclock your CPU, you have enough headroom to run two 970s. Are you sure you need the SLI? What resolution? How many monitors? Your EVGA B2 is a very good PSU and will meet or exceed its rating.

Because I do a lot of networking and server analysis, I will have about 3~4 monitors, on 1080p. Or something like that. I am not going to overclock the GPU, but I might overclock the CPU by a little. Thanks for the help!

 

[geofelt]

A normal GTX970 needs two 6 pin pcie power connectors.
Each 6 pin connector can deliver 75w.
The windforce GTX970 is a highly overclocked version that needs a 8 pin connector in addition to the 6 pin.
A 8 pin connector can deliver 150w.
Add to that the power from the pcie slot which can be 75w and you are looking at a draw of 300w per card.
That leaves 150w for all the rest. Considering that the 5820K is a 140w chip, I think 750w would be cutting it close.

DonkeyOatie had a good question... Do you really need dual cards?

If you will be gaming on a single 1080P monitor, then you really don't.
A single GTX970 will be fine, particularly if your games are non fast action shooters.
It is the fast action that needs heavy graphics power.
I might suggest a compromise at a single GTX980. You then have an upgrade option.

With multiple 1080P monitors, you will usually be gaming on a single monitor.
The addition of several side monitors adds little to the graphics load.

And... have you considered a single large 4k monitor?
You can buy a 50" seiki 4k monitor for not much.
It will hold the equivalent of 4 1080P displays on one screen. That gives you the ability to seamlessly resize and move the windows around.
The main drawback is a limit of 30 hz with the hdmi connection.
There are others that will do 60hz, but currentlyare limited to 8 bit color.
Do some research there.

 

[DonkeyOatie]

I checked around and have been unable to find sustained power in excess of 250W from those cards, even when further overclocked, and the OP does not seem to be running software that is going to get there. Between the socket and the 8+2, the card can get to 225W. The extra 6 pin allows for more, but I do not think that the full 300 is ever reached. Here's a power test. http://www.guru3d.com/articles-pages/geforce-gtx-970-sli-review,4.html

I know it's not the same card. If you have any doubts, spend $15 more for the EVGA 110 B2 850.

 

[geofelt]

A graphics card designer will not willingly up the requirement fro a 6 pin to a 8 pin without a good reason.
One might conclude that 225w might be the minimum and 300w max for the card.

If the card will never be run full out in 3d operation, it might never reach over 225w, but I would not count on it.

I have no problem overprovisioning a PSU a bit. Say 20%.
It will run cooler, quieter, and more efficiently in the middle third of it's range.
A PSU will only use the wattage demanded of it, regardless of it's max capability.

 

[DonkeyOatie]

The idle for the card is going to be crazy low; 10 - 20W? Normal use may not exceed 150 to 200 W, needing the bus and 8+2. For overhead, spike and overclock demands, the extra 6 is there. They would need that if the card ever went over 225 and possibly less to avoid maxing the other two channels. I don't think it would be a good design to be running the bus and the 8+2 at the max a lot of the time. I would try to run those cards on that PSU for that software. Since the marginal cost is only $15, going with an 850 is fine.

If you work at 300 max for each card and another 200 for the system we are looking at GTX780ti numbers, and these cards are much more frugal than that.

 

[Bossyfins]

I cant upgrade my PSU at this time because we can no longer return it. However, I might decide to go with the V850 Gold PSU from Cm later. I think i might aswell go for just the 970 as the games im playing are not very graphic intensive.