PSU For AMD HD 7970

[MrRX7]

Will this (see below) psu be good enough to run a single AMD HD 7970, a i5 3570k, 8gb of 1600mhz ddr3 ram, asus p8h61mxusb3 mobo, 2 3.5inch 7200rpm hdd's and a 2m NZXT sleeved LED kit?

CoolerMaster Extreme 2 725W : http://www.coolermaster-usa.com/product.php?product_id=3084

everything will be stock not overclocked.

[megadarkwood]

That one will be fine, 725w might even be a bit too much.

[helping]

500w quality or 600w will do you fine assuming no crossfire.

[sonarctica]

Good 500W PSU is enough

[MrRX7]

@megadarkwood , @helping , @sonarctica

ok and my cheapish 725w one?

[megadarkwood]

@megadarkwood , @helping , @sonarctica

ok and my cheapish 725w one?

That one is fine.

[OuchMyFaceyHole]

@megadarkwood , @helping , @sonarctica

ok and my cheapish 725w one?

 

That one is fine.

Dont go with a cheap power supply. Go get a quality one from corsair, pc power and cooling, antec, or silverstone.

[quan289]

It's a poor non-PFC unit where the 475w version failed not only to delivered it rated output but went out of ATX specification when drawing more than 360w. Since this very platform failed at a lower output than the one you are looking at, I would past on this crap and find a proper unit for your system.

[MrRX7]

@quan289 i already have this 725w one... I have been using it for 6 months

[Langdon]

Dont go with a cheap power supply. Go get a quality one from corsair, pc power and cooling, antec, or silverstone.

or Seasonic or XFX.

[needmorewood]

you current PSU is fine to answer your questions

[MrRX7]

@needmorewood my psu is fine for even the 7970?

[lachyman]

Get 550W if you aren't going to OC and if you plan on adding a second one, 750-800W will be plenty.

Look at this: http://pcpartpicker.com/part/antec-power-supply-hcg620m if you are buying a new unit.

[needmorewood]

@needmorewood my psu is fine for even the 7970?

yes its more than enough for that GPU

guys plz stop suggesting other powersupplies. he is asking if the own he currently owns works in these scenarios. he is NOT looking to buy anothe psu

[MrRX7]

@needmorewood thankyou , why have people been saying my current psu is fairly crappy?

[defunkt]

@needmorewood thankyou , why have people been saying my current psu is fairly crappy?

It's cheap and coolermaster power supply's aren't thought of to be that fantastic. But mostly it's cheap.

[MrRX7]

@CreepingMoth ok and what will happen if i buy a nice corsair one? apart from power bill being a bit lower? will the 7970 perform better?

[defunkt]

@CreepingMoth ok and what will happen if i buy a nice corsair one? apart from power bill being a bit lower? will the 7970 perform better?

It will provide cleaner more constant power and just be better made, so it will last longer etc... Go for 500w-600w for the one graphics card, or 700w-800w if you want to do crossfire in the future.

[quan289]

why have people been saying my current psu is fairly crappy?

 

Read the discussion here and the review that it has been posted: http://www.jonnyguru.com/forums/showthread.php?t=9027

Older lower-end CM units has a track record of being over-rated (in a sense that they take a 350w PSU and labeled it as a 500w), poor performing, poorly build, etc, and this particular line from CM is one of them. The original Extreme Power Plus was like this as well. In fact, the 400w and 460w unit was practically the same unit with only few component upgraded but it did not stop it from failing approximately at the same output.

 

It's cheap and coolermaster power supply's aren't thought of to be that fantastic. But mostly it's cheap.

 

To be far, the PSU team of CM has been reorganized as well as has a new PSU manager. The two PSU they had worked with, the V and VS line, are great units. It shows that they turning the company around, in which their future releases may be worth looking at. Those trashy units that CM had release in the past are also EOL and aren't in production (they would still be some in stores due to stock of course).

[BYOGamingPC]

I'd go with the XFX PRO550W CORE EDITION

[Analog]

A 550W or a 600W will be more than enough, especially without overclocking. 

[MrRX7]

@quan289 thankyou, ive got a few more questions for you below please;

1. So my 725W would output approximately how much do you reckon max?

2. What is EOL?

@BYOGamingPC and or anyone else is the Corsair TX650 a good power supply? who makes it? what power does it output?

[MrRX7]

and if it is good how many amps on 12V does a 7970 need? to run flat out? would this psu (TX650) be good enough?

@quan289
@mgsstar
@Volbet
@BYOGamingPC
@Analog

[mgsstar]

and if it is good how many amps on 12V does a 7970 need? to run flat out? would this psu (TX650) be good enough?

@quan289

@mgsstar

@Volbet

@BYOGamingPC

@Analog

Yes I have a TX650 V2 and it runs my 7950 perfectly and my card is based off of on a 7970 PCB and the power requirements are the same. Is it the V2 or the V1 version because the V2 would be a better choice?

 

 

http://www.amd.com/us/products/desktop/graphics/7000/7970/Pages/radeon-7970.aspx#2

http://www.amd.com/uk/products/desktop/graphics/7000/7950/Pages/radeon-7950.aspx#2

[MrRX7]

@mgsstar how is it based off of a 7970 pcb? and how is the v2 better? i was looking at the v1