GTX 770 and PSU question

mattcam98 · Jul 22, 2014

This is the rig i want to build:

i7 4790k
GTX 770 Asus DirectCU II
MSI Z97 gaming 3
Samsung evo 250GB SSD
G-Skill ripjaws X 8GB 2133MHz
Corsair H105 cooler
Corsair RM650 watts

The thing is some people on this thread were having problems with their 770 and others where saying it is because of their PSU. So should i be safe and get a RM750 Watts or maybe another PSU in general, and is the 770 a good card, i mean the Rig above is exactly at my price point which is good, so if i need to change something it will go a bit above. some ideas ?

SethJPC · Jul 22, 2014

Yeah look for a cheap XFX or Seasonic like these:

http://www.scan.co.uk/products/650w-xfx-xxx-hybrid-modular-80-plus-bronze-1x135mm-atx-v22-psu

http://www.scan.co.uk/products/620w-seasonic-evo-full-modular-80plus-bronze-atx-psu

chris987 · Jul 22, 2014

^ the XFX is great and modular you should really prefer as it is also Haswell compatible. ^ the seasonic M12 620w isnt! sorry it is the evo which actually it is also haswell ready!

bignastyid · Jul 22, 2014

Quality wise the RM650 is better than the RM750(the rm750 and rm850 uses cheaper secondary capacitors). The RM650 is more than capable of running that system with a sinlge 770. However @ $112 there are much better options, For example the 750w EVGA G2 is only $105 http://pcpartpicker.com/part/evga-power-supply-220g20750xr and the 850w G2 id only $120 http://pcpartpicker.com/part/evga-power-supply-220g20850xr. The RM650 is tier2(which is good) the G2 series is Tier 1.
http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html

chris987 · Jul 22, 2014

the evga g2 platform made by superflower @bignastyid suggests it is a best option for the money! your mobo though doesnt support SLI so an 650w would still be a great option!

mattcam98 · Jul 22, 2014

So is the EVGA-SuperNOVA 750W PSU better or should i keep the RM650? : http://www.amazon.co.uk/EVGA-SuperNOVA-750W-Power-Supply/dp/B00J01K3E8/ref=sr_1_1?ie=UTF8&qid=1406051496&sr=8-1&keywords=EVGA+Supernova+G2

bignastyid · Jul 22, 2014

Since they are both £80 I'd get the EVGA. The 650w XFX is cheaper and would also work well, but its not fully modular and not as efficient. The version of the 650w XFX that is, is the same price as the 750w EVGA.

chris987 · Jul 22, 2014

EVGA G2 dont even think about it!

mattcam98 · Jul 22, 2014

Haha EVGA G2 it is ! Thanks guys

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