Can my PSU handle a gtx 770?

UnknownArtist_ · Nov 25, 2014

I currently have a gtx 660 installed, but have been given the opportunity to get my hands on a Asus gtx770 2gb.

The thing is I'm not sure if my PSU will be capable of delivering enough power. I currently have a cooler master 520w rs-520-asaa-a1.

My other specs are i5 3470 (non k), asrock z77 pro4 motherboard, 8 GB ram, no CD drive. I'm running a two monitor setup by the way and will be watching 1080p movies full screen while gaming on the other monitor.

uplink-svk · Nov 25, 2014

According to parameters of Your PSU and official Asus website, yes, You should be able to run it. Though, I'd stay on the "safe side" and go after 600-650W bronze/silver/gold/platinum PSU.

Hershel1 · Nov 25, 2014

http://www.geforce.co.uk/hardware/desktop-gpus/geforce-gtx-770/specifications

Minimum recommended system power: 600W.

Not to say it can't run it, depends on how much your PC is currently consuming. Put it all in PC part picker and see the estimated wattage, and round it up to be safe.

uplink-svk · Nov 25, 2014

Hershel1 - http://www.asus.com/Graphics_Cards/GTX770DC2OC2GD5/specifications/

Power Consumption: up to 300Wadditional 6+8 pin PCIe power required

He has:

M/B 24 Pin x 1
CPU 4 Pin x 1
CPU 8 Pin x 1
PCI-E 8 Pin x1
PCI-E 6 Pin x 2
4 Pin Peripheral x 10
SATA x 6
4 Pin Floppy x 2

And combined power at 12V PCi-e rails up to 408 W.

UnknownArtist_ · Nov 25, 2014

I just put together my system, if I were to buy the 770, at pcpartpicker.
here's a link http://pcpartpicker.com/p/WkKJTW
It says 435 watt total.

The thing is, I've read that the 770 requires a 42 amp input. I've just uploaded a picture of my PSU: http://imgur.com/J1S0DvD - from what I can tell, I got 3 x 12v 19 amp outputs. Wouldnt that mean that I can't get more than 38 amps in total from a 6 + 8 pin connector?

uplink-svk · Nov 25, 2014

UnknownArtist_ - almost precisely, since the PSU can pump up more amps into two rails, instead of three. It's combined power. Though, if You want to be on a safe side, get a new PSU.

Erm, what in the hell are we doing here?

http://pcpartpicker.com/part/evga-video-card-04gp42972kr

just get this one

...she's like TONS times better, and she works with Your current PSU [she eats tons less watts than 770]

Hershel1 · Nov 25, 2014

You should be fine. I looked into your power supply more and people had fine results with your card.

Make sure to give Uplink the correct answer because he done all the work.

Edit: Didn't see Uplink had responded again haha. Apologies.

uplink-svk · Nov 25, 2014

Hershel1 thx Hershel. Anyway, more like "solution" I'd like him to get the GTX 970. It's a beast and it cost "the same"...

UnknownArtist_ · Nov 25, 2014

Where I live, the 970 costs $600, and I'm able to get a 6 month old 770 for around $200.
A new PSU would cost at least an ekstra $100, and since Christmas is around the corner, I'd like to save where possible.

uplink-svk · Nov 25, 2014

UnknownArtist_ - woa, You live in a complicated place mate

. Sorry to hear that. Well, than You know Your cards. New PSU if You want to be sure, or get GTX 770 and try it. I have tons of systems where GTX 770 runs good on 500-550W PSUs, but You just might not be the lucky one. And also, try to put her down to 160-180 dollars, if possible. That's in general a great price for GTX 770, 200 seems "fair" but not great

UnknownArtist_ · Nov 26, 2014

Thanks for all your advice's.
I think I'll buy the 770 without upgrading my PSU. If it doesn't work, I'll just spend the ekstra money I get from my 660 on a new psu!

uplink-svk · Nov 26, 2014

That's the best way

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