will HKC 580 watt be enough for ASUS STRIX GTX 970 OC?

kralisimo · Mar 10, 2015

I have a HKC USP-5580 PSU
http://www.hkc-europe.com/product_detail.asp?id=704
ASUS Z97-C Mobo
8 GB RAM 1333
Core i5 4690K CPU
250 GB SAMSUNG EVO SSD
512 GB Maxtor HDD
and i just bought a ASUS STRIX GTX 970 OC.
Will the HKC USP-5580 PSU be enough to power the graphics card?

-HH- · Mar 10, 2015

im not sure about that PSU.

Try an XFX TS (or XT) 550W psu, should be enough for a CPU and GPU overclock but if you really are scared that isn't enough, try a 650w version. I personally think that it's going to be fine on a 550w psu

i7Baby · Mar 10, 2015

Its not in tier one or two of http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html#xtor=EPR-8886. Get one that is.

Karadjgne · Mar 10, 2015

That's not a good psu. It's running 3.3v 32A, 5v 35A, 12v 30A outputs which is a very old design used back when cpus needed such high amperage on 3.3 and 5v outputs. For example, an XFX 550w TS has 3.3v 20A, 5v 20A and 45A 12v which is definitely better as gpus use 12v, fans use 12v etc and most of the 550w comes from the 12v rail, not like your posted psu where the wattage is from a shared 5v/12v output.

12v x 30A = 360w. 12v x 45A =540w. Huge difference in output, and that will affect the gpu greatly.

Will it be enough? Probably, 75% efficiency is bad though, very bad. Chances of problems? Rather large. Chances of driving the psu to 100% full load? Large possibility. Chances of burning up the psu in less than 1 year? 100% Chances the psu will destroy the gpu? Higher than you want to pay for.

kralisimo · Mar 10, 2015

Karadjgne :

That's not a good psu. It's running 3.3v 32A, 5v 35A, 12v 30A outputs which is a very old design used back when cpus needed such high amperage on 3.3 and 5v outputs. For example, an XFX 550w TS has 3.3v 20A, 5v 20A and 45A 12v which is definitely better as gpus use 12v, fans use 12v etc and most of the 550w comes from the 12v rail, not like your posted psu where the wattage is from a shared 5v/12v output.

12v x 30A = 360w. 12v x 45A =540w. Huge difference in output, and that will affect the gpu greatly.

Will it be enough? Probably, 75% efficiency is bad though, very bad. Chances of problems? Rather large. Chances of driving the psu to 100% full load? Large possibility. Chances of burning up the psu in less than 1 year? 100% Chances the psu will destroy the gpu? Higher than you want to pay for.

Is CoolerMaster G750M a good PSU?

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will HKC 580 watt be enough for ASUS STRIX GTX 970 OC?

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