trying to find a power supply for the gtx 780ti

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Thomas88

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Feb 10, 2014
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I recently bought:
http://www.bestbuy.com/site/asus-desktop-16gb-memory-1tb-hard-drive/1307433591.p?id=mp1307433591&skuid=1307433591&sellerId=15329835

im looking into getting a graphics card and a power supply for that card, since this mother board only has one pci slot im looking into getting one graphics card but later down the road im going to upgrade my mother board and do some duel cards.

I just don't know what power supply I need. ( card needs 600w, so for duel cards 1200?)

ive been outa the computer building for quite a long time...

the card im looking at is the 780ti: http://www.newegg.com/Product/Product.aspx?Item=N82E16814487003 I will be getting another one in the next cupple years along with a better mother board.

the power supply :http://www.newegg.com/Product/Product.aspx?Item=N82E16817151107
but I have no idea what im looking for.

this computer will be a med range gamer than later on a high range gamer.
arma3 / dcs: black shark2

so I guess my question is more for the power supply. what one should I get for the 780ti and have all the connectors for the other hardware?

price range on the power supply is 150ish

 
Solution
hdshatter
The 12v rail is basically the power to the motherboard, its the largest connector.

For sli 780tis you will need 4 pci power cables on the power supply.

PCI power looks like this.
http://www.playtool.com/pages/psuconnectors/pcie8.jpg

You need 4 of those to run 2 780tis.

GS800 has 4 pci cables so it will work
the AX860 comes with 6 so it will work with 2 spare cables
The seasonic you linked also has 4.

Also they need to be 8 pin PCI connectors. All 3 PSUs said in this thread will run your 780ti(s).


Both corsairs will have pci marked on the cables, they will also be braided and they are modular.

The gpu may fit in that case but it lacks airflow. Your 780ti is going to roast inside, 1 tiny fan isn't enough. I would suggest a mid...
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hdshatter

hdshatter

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If your going to spend that much on a PSU I would go for a Corsair personally, but there is nothing wrong with that Seasonic. 750 watts is more than capable of running a 780ti, if its a quality 750 watt it could even run 2 with no problem.

And no the GPU only uses around 250 watts max 600 watts on a gpu would be INSANE. That is total system power consumption at absolute highest expected peak using modern hardware.

If your budget is around $150 and you plan on sli how about this?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139047

or

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139044

Also I doubt that case can fit a 780ti and cool it efficiently you should get one that can support 2 gpus that are 10.5" or higher, you really can't go wrong here as long as its decent.
 
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Vitric9

Vitric9

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Jan 26, 2014
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That Power Supply is a decent one and should be enough for 2 780 ti's, I also prefer Corsair even though that some of their PSU's are made from Seasonic parts. You said your Motherboard only has one PCI-E slot and your considering upgrading the MB and PSU later. It would be more cost effective to get the Motherboard that suits your needs first. Most modern motherboards offer very similar performance anyway unless you want to overclock and have extra features. Also the if you want the best performance at a half decent price try the HX650 or HX750.
 
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hdshatter

hdshatter

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The 12v rail is basically the power to the motherboard, its the largest connector.

For sli 780tis you will need 4 pci power cables on the power supply.

PCI power looks like this.
http://www.playtool.com/pages/psuconnectors/pcie8.jpg

You need 4 of those to run 2 780tis.

GS800 has 4 pci cables so it will work
the AX860 comes with 6 so it will work with 2 spare cables
The seasonic you linked also has 4.

Also they need to be 8 pin PCI connectors. All 3 PSUs said in this thread will run your 780ti(s).


Both corsairs will have pci marked on the cables, they will also be braided and they are modular.

The gpu may fit in that case but it lacks airflow. Your 780ti is going to roast inside, 1 tiny fan isn't enough. I would suggest a mid tower with atleast 4 120mm fans, it also needs to have room for 2 full size gpus.

The EVGA ACX takes all the heat from your GPU and puts it inside the case. Your case is going to do an extremely bad job at getting that hot air out and bringing cool air in.
 
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Solution
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Thomas88

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yea thank you ill prob be getting the gs800



since I just bought that computer from best buy( 2 weeks ago)........ ill be sticking with the duel i7's ....



I do have my old large case still but its 7 years old... should the screw holes line up and all that?

 
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hdshatter

hdshatter

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No just buy a new case unless the old case you have can fit sli 10.5" gpus, an atx motherboard, standard atx psu, 3.5" drives and it has several fans.

A case like this will cool your gpus very well and have enough room for them.
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147175

You can go ahead and try to put a 780ti in your stock asus case, but your not going to like what happens.

Also when you buy a new motherboard you will most likely lose your windows license.

This is why people build PCs and don't heavily modify prebuilts.
 
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Thomas88

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the prebuilt I bought whyyyyy back came with windows cds....I feel like I flushed 900. down the toylet... :)

and holly s---- nice case
 
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shatterhd

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See if you can return the PC maybe? Your basically having to replace everything besides the ram, hard drive, disk drive and CPU >.<. You could of spent $900 and gotten everything you needed to replace + stuff that's okay with cash left. You could probably even get a solid state drive and a better hard drive and still have money left...

Windows has that stupid 1 time use tied to motherboard crap. I highly doubt that code on the case will work on a new board. I tried it with my old dell to see if I could get a legit copy for free but it said nope...
 
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Thomas88

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I would return it but I broke the seal to open the case.. ill try to resell it ...shouldn't be to difficult.

wish I knew about this forum before I thought I knew what I was doing..

thank you guys very much.

 
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