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What psu do I need?

Last response: in Systems
June 26, 2012 5:17:58 PM

I'm getting the i5 3570k, yes overclocking. Also grabbing a GTX 670, ocing it as well. I was going to grab a 750 corsair psu, but I was thinking I want to upgrade to SLI 670 near future. What PSU would I need for sli 60 and 3570k both over clocked? Thanks guys!

Asus sabertooth z77
8Gb 4x2 g skill sniper at 1866
Bly ray burner
SSD 128gb
7200 rpm 500GB HDD

More about : psu

June 26, 2012 5:30:37 PM

If your overclocking the cpu and gpu's I'd recommend a quality 850w at least 80+ bronze.
June 26, 2012 5:31:43 PM

The calculators will say 750 watts but if it's me, going for the highest possible OC's, I'd want a jonnyguru 10.0 performance rated PSU of 850 watts ...... it's not just about having enough power, it's about having stable voltages and low ripple to make ya highest OC's stable.

Corsair HX850
Antec CP-850

If not going for the highest OC's, you could get by with a Corsair TX750 or XFX Core Edition 750.

And if ya getting a 670, I'd wanna get one that's been designed for the highest OC's.
EVGA SC Boost Clock is 1046 outta the box....stable at 1200 Mhz
EVGA SC gets 3DMark Score of 8691 outta the box and 9443 OC'd
Idle temp is 29C / load temp is 78C
Noise is 37 dBA Idle / 43 dBA under load
Asus TOP Boost Clock is 1137 outta the box .... stable at 1280 Mhz
Asus gets 3DMark Score of 9340 outta the box and 9839 OC'd
Idle temp is 30C / load temp is 72C
Noise is 37 dBA Idle / 38 dBA under load

That makes the Asus 7% faster outta the box than the EVGA SC, 6C cooler and almost 1/4 as loud under load (every 3 dBA is a doubling of sound level). The FTW is slightly faster than the SC, leaving the Asus model w/ a 5% performance advantage

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June 26, 2012 6:18:32 PM

Go to this link and find the actual specs of the PSU before you buy. You will be astonished, some high end brands selling psu of 750w, eventually supplies only 650w (just example)... this website has detail results of each psu by most of the manufacturers, along with product code and year of production.

But yeah go with a branded, and I would suggest semi modular or not modular-- over the modular psu. I have heard many people having lose connections in modular psu. (just my opinion)
June 26, 2012 6:19:49 PM

A GTX 670 OCed in SLI will still only require 750W PSU. No need to go over it.
June 26, 2012 6:22:41 PM

azeem40 said:
A GTX 670 OCed in SLI will still only require 750W PSU. No need to go over it.

Thanks for your input. It's already covered.

This is coming from someone who asked at least 6 times in the last 3 months what psu he should use in his own

June 26, 2012 6:24:37 PM

geekapproved said:
Thanks for your input. It's already covered.

You need to chill mate. :p 
June 26, 2012 6:27:03 PM

azeem40 said:
You need to chill mate. :p 

You need to tell the truth and stop lying all the time.

Is there a better PSU I can get? I MIGHT run Crossfire on the 7950 in the future. If it is worth getting, and please explain to me if it is and why, should I get a GOLD rated PSU?

Is the PSU in this wishlist good?

EDIT: I do plan to SLI/Crossfire the 580 (Fermi)/7970 (when I get it) in the future and I will OC to about 4.5 GHz.

i have bought an amd radeon hd 7750 , but i haven't installed it yet becuz i am afraid of my psu, i have a 450w power supply so can i run this graphics card on it?if not then tell me which one shud i buy ( tell me any cheapest one but which can run it smoothly) if my own psu will be able to run it then it will be great :D 
my pc's info. is
4GB ram
pentium D ,dual core, 3.00 GHZ

Is there any possibilities of Motherboard, Processor getting damaged if any problem faced with the PSU to my graphic card?

These are all recent quotes by you from the links above where your asking what power supply you should use.

By the way, your future possibilities are endless. lol

June 26, 2012 6:33:36 PM

azeem40 said:
It uses a max of 295W of power at full load.
Requires 700W (require doesn't mean recommended).
Uses 293W of power. Both reviews are close together (2W difference).


We already know how much power they use. He's overclocking them and the cpu which will require up 150w more.

You have no business giving others advice about power supplies when you have no idea what power supply to use for your own computer. :hello: 

I found at least 3 threads where you asking what psu you should use for YOUR OWN computer.
June 26, 2012 6:35:27 PM

From your own link Azeem40

GeForce GTX 670 2x SLI - On your average system the cards require you to have a 700 Watt power supply unit as minimum.

Remember, if you are going to overclock the GPUs or processor, then we do recommend you purchase something with some more stamina. The minute you touch voltages on the CPU or GPUs, the power draw can rise real fast and extensively.

Note these important words Akeem40.

AVERAGE SYSTEM...................................MINIMUM.

This is not AVERAGE, it's highly overclocked, GPU's AND CPU.

Minimum means the very least they would recommend IF it was an AVERAGE SYSTEM, and NOT overclocking ANYTHING.

Please go away now.