GTX770 power supply

Hello,

I am looking forward to buy the GTX770 (Gainward ghost)
But i heard you need 42 Ohm on the 12 Volt rail, wich the cx600 (corsair power supply im using right now with my 7870) does not have, it has 40 Ohm instead.

So i would like to hear some of your opinions and suggestions on wich power supply i should get. (600w/750w modulair if posseble)

I am using the card for eyefinity and the HD 7970 is also a nice option. Wich i could get for 30 bucks less (Because of the power supply i would have to get with the GTX770) When i looked at Eyefinity (triple monitor) benchmarks the GTX770 is still a bit faster besides the fact it has 1 gb less ram.

So if you got any tips, options or PSU's you recommend, i would like to hear them!

-Aaback

(I have dislexia so dont mind the spelling please )

I'm guessing you mean 'amps' rather than 'Ohms'?

The CX600 should power a 770 fine.
Don't worry about it.

What are your other system specs?

I dont even know mate, but on an other form i was told it wont last for a long time until it goes boom... Anyway

-I7 2600 (no overklock
-Some msi motherboard/ dont know wich model but its nice
-Intel 120gb ssd
-Barcuda 1tb HDD
-Corsair h60 (its look sweet in my windowed case! dont judge me D: )
-16 gb 1333 corsair ram
-5.1 soundcard (no extra power needet

My case is windowed so the looks do matter.
Thats pretty much it.

The CX600 will be absolutely fine for that.

I'd suggest not going to other forums if they tell you things like that

I think you're right, if it would blow up im sure nvidia would have told us that!

Would getting the 4gb version for 50 bucks more help me alot with eyefinity?

Aa-back1234 said:

I think you're right, if it would blow up im sure nvidia would have told us that!

Click to expand...

No no...not nvidia or anything...

The amps are the current required from the power supply in order to power the card.

With unreliable power supplies, if you get close to their limits of amps or power (watts) then they can go bang.

These cheaper power supplies normally operate multiple rails, whilst the CX600 has a single rail.
If one of the rails is over used - ie, trying to pull 40 amps off a rail that can only provide 10amps, that's when they go bang.
On your single rail, a single 770 will not be pulling more than 40 amps on its own.

Companies like nvidia overstate the amount of power required to power their devices (to cover their arses) and at the same time, PSU companies like Corsair understate what their PSUs can do for the same reason.
So you will have a fair amount of leeway.

As for the 4gb version it's up to you. It's nvidia surround - not eyefinity btw (eyefinity is AMD). With a single card, you with triple screens, you probably won't be able to play games on maximum details anyway, and so the extra 2gb won't matter. But, if in the future you choose to add a second card in order to max out games, then you'll probably regret not getting the 4gb.

I'd say if you're definitely not planning on upgrading to SLI in the future, don't bother with 4gb. If you think there's a chance of you getting another, then I'd be going for 4gb.

I will prop never go SLI becouse of the double driver problems i will get with ''nvidia surround'' and SLI (double the headache) Also, i gonna buy the new card in 2 weeks if the 780 dropped low enough. I might just pick that one up. Also in 2 weeks i will know how much my (GREAT PAYING) summer job will get me! So if that happends i wont be even looking at money.

Aa-back1234 said:

I will prop never go SLI becouse of the double driver problems i will get with ''nvidia surround'' and SLI (double the headache) Also, i gonna buy the new card in 2 weeks if the 780 dropped low enough. I might just pick that one up. Also in 2 weeks i will know how much my (GREAT PAYING) summer job will get me! So if that happends i wont be even looking at money.

Click to expand...

NVidia doesn't have dual-GPU problems. SLI works epic.

hmm idk then

For the most part I agree with you because Nvidia definitely has their drivers working a lot better than AMD especially when using dual cards but Id still prefer a single card because there are still come compatibility issues and some wrinkels can pop up. Not saying you "shouldnt" go SLI, just that there can still be some hassles with them albeit nothing major though, not like the microstuttering and downright incompatibility like with AMD.

Aa-back1234 said:

hmm idk then

Click to expand...

I'd still try and get a higher end single GPU card. It adds possibilities of adding a second higher end card later

Might bush it to the 780 :O

Aa-back1234 said:

Might bush it to the 780 :O

Click to expand...

No youre talking!

I srsly said bush...

Yeah, thats what got my attention.

Aa-back1234 said:

Might bush it to the 780 :O

Click to expand...

You go girl!

MacLeod said:

No youre talking!

Click to expand...

Waaait a moment!

jamesriley94 said:

I'm guessing you mean 'amps' rather than 'Ohms'?

The CX600 should power a 770 fine.
Don't worry about it.

What are your other system specs?

Click to expand...

I don't know the exact specs of that PSU, but I have heard that you want at least an 850W to power a 770, or a VERY VERY good lower wattage PSU.

Never mind you acknowledged it.

iiBetrayforAR said:

I don't know the exact specs of that PSU, but I have heard that you want at least an 850W to power a 770, or a VERY VERY good lower wattage PSU.

Never mind you acknowledged it.

Click to expand...

850 Watt will easily power two 770s in SLI