Can ASUS gtx 780 directcu II with this power supply

mohamedddo · Nov 7, 2015

i have ASUS gtx 780 directcu II .. and i want to know if it can work with PSU SeaSonic S12II Bronze 520W 80 PLUS Certified PSU ?

Darkbreeze · Nov 7, 2015

It will probably run, but I'd want a larger capacity unit for the GTX 780. Minimum recommended capacity is 575w so you're below recommended spec, but it's a decent unit and may be ok. I'd suggest you could use it for now, but plan to upgrade to a larger PSU, 600w or higher, in the near future. The EVGA B2 750w or Seasonic S12II 620w would both work fine.

mohamedddo · Nov 7, 2015

Darkbreeze :

no my friend i didnt have this psu i ask to buy one for the GTX 780 .. so you see this PSU a Risk or will be ok
and i have another option to get this PSU Corsair VS Series VS650M 650w PSU but i dont know if it is good or no i know that the Seasonic is best ?

sizzling · Nov 7, 2015

A 780 needs 42A on the 12v rail and the 520 seasonic you listed is only 40A.

sizzling · Nov 7, 2015

mohamedddo :

The VS is low quality. Any 600w on tier 1 or 2 will work http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

mohamedddo · Nov 7, 2015

sizzling :

ok my friend what about this one XFX ProSeries Core Edition 550W Full Wired PSU 80 Plus Bronze

sizzling · Nov 7, 2015

mohamedddo :

That has a 44A 12v rail so should work ok

mohamedddo · Nov 7, 2015

sizzling :

thank thanks my friend but i have one last question that i have now 2 option at the same price
SeaSonic S12II Bronze 620W 80 PLUS Certified PSU
XFX ProSeries Core Edition 550W Full Wired PSU 80 Plus Bronze
what should i go for .. for long time

Darkbreeze · Nov 7, 2015

That probably depends on the rest of your system. The S12II uses an older group regulated design that doesn't play well with the low power C states on newer processors like Haswell. What are your full system specs?

mohamedddo · Nov 8, 2015

Darkbreeze :

my possessor Intel 4440 3.10

Darkbreeze · Nov 8, 2015

That's a Haswell processor, so you would be better off using a newer power supply that supports the low power C states. Neither of those units are Haswell compatible, but can be used with Haswell IF you turn off the C6 and C7 states in the bios. Otherwise, you will want a different model.

What country are you in? What vendors can you purchase from.

mohamedddo · Nov 8, 2015

Darkbreeze :

i am from Egypt my friend .. this is the only 2 options i can get i don't have enough money .. is it easy to turn off the C6 and C7 from my motherboard bios ? it will effect any thing ?
i really thank you for helping me

Darkbreeze · Nov 8, 2015

In that case I'd probably go with the S12II 620w and turn off the C6 and C7 states in the bios. No, it is not hard. Just go into the bios and turn it off. What is your motherboard model number?

mohamedddo · Nov 9, 2015

Darkbreeze :

my motherboard model number is asrock H81M-HDS

Darkbreeze · Nov 9, 2015

On that model you can configure the CPU C states settings on the CPU configuration tab. Simply disable the C6/C7 state.

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Can ASUS gtx 780 directcu II with this power supply

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