PSU (+other ugprades)

Selachi · 26 Apr 2013 at 09:45

Hi all,

I'm looking into replacing my power supply.

System specs
i5 2500k @ 4.2ghz
Corsair H60
Corsair 16GB 1600MHz DDR3
2 HDDs @7200RPM
1 80gb SSD
Sapphire Radeon HD 6950
Corsair TX 650W ATX SLi PSU

Using this Thermaltake Calculator, it says I need 733W. I imagine this is overdoing it slightly, as the 650 I have at the moment is 5 years old and hasn't blown up yet, but still.

Do you have any recommendations or a clear idea of how much power I need? I'm having trouble sorting through the endless list and would rather not just pick an 80+ rated one at random. Only requirement is for it to be modular. I imagine it probably needs to be 750W+.

While we're at it, if I were to upgrade any other part of my system in the near future, what would you recommend starting with? Where's the potential botteneck?

Cheers!

ubersonic · 26 Apr 2013 at 09:52

Selachi said:
Using this Thermaltake Calculator, it says I need 733W.

That can't be right surely...

*EDIT*

This one http://www.extreme.outervision.com/PSUEngine says 365w with 415w recommended, and that ones usually pretty good.

Selachi · 26 Apr 2013 at 10:36

Here's a screenshot of what it generated based on what I put in. I actually got pretty much exactly the same results from the calculator you posted (815W), it looks like they're actually the same one. So I guess it's to do with the options I'm ticking.. I've included a screenshot below.

DaleTheWhale · 26 Apr 2013 at 10:38

You don't need 733w, a single card and that CPU needs nothing more than 550w.

You'll be fine with your current PSU.

RJC · 26 Apr 2013 at 10:41

Your only running on CPU with 4 cores, not 4 actual CPUs.

Idleman · 26 Apr 2013 at 10:44

If you run it again, only this time select 1xCpu, not 4

, you will get a more accurate reading.
Also, if you are worried your 650w Psu is getting on, then you can use a multimeter to check the consistency of your voltages. There is a guide in the link to do this.

http://www.huddysworld.co.uk/index....rking&catid=40:techie-talk-hardware&Itemid=72

Selachi · 26 Apr 2013 at 11:24

Ok thanks all, that makes more sense. The question still stands though. I'm passing my current PSU down to another machine which needs one, so I am going to buy a new one anyway. Any recomendations for modular, efficient PSUs at that wattage then?

Idleman · 26 Apr 2013 at 11:38

YOUR BASKET
1 x Seasonic M12II 650W '80 Plus Bronze' Modular Power Supply £84.98
1 x XFX 750W XXX Edition Modular '80 Plus Silver' Power Supply £83.99
1 x BeQuiet Pure Power L8 630W '80 Plus Bronze' Modular Power Supply - With 120mm Silent Wing Fan Built in £79.99
1 x Thermaltake Smart M650W '80 Plus Bronze' Modular Power Supply £79.99
1 x Corsair Enthusiast Series TX 650W V2 High Performance '80 Plus Bronze' Power Supply (CP-9020038-UK) £78.98
1 x XFX Pro Series 650W XXX Edition Modular '80 Plus Bronze' Power Supply £74.99
Total : £495.53 (includes shipping : £10.50).

Although, looking at the prices, I would be inclined to go for the XFX 750. But if you are not likely to go xfire, then maybe a 550/600w Psu would be enough.

Selachi · 26 Apr 2013 at 16:04

Thanks for your post Idleman, I think I'm inclined to agree with you. Some decent ones on there, but the XFX 750 gives me room to expand, is modular, and 80+ silver. Perfect. Thank you very much!

dacads · 26 Apr 2013 at 17:03

Actually the XFX 750w is semi-modular, hopefully that isn't much of an issue as it isn't for me

Selachi · 26 Apr 2013 at 22:40

Already ordered one so I guess it will have to be

How is it semi modular? Can't see it being an issue - All I want to do is get rid of two of the excess cables I currently have in there without having to bury them under the hard drives.

Akagi · 26 Apr 2013 at 23:37

Selachi said:
Already ordered one so I guess it will have to be How is it semi modular? Can't see it being an issue - All I want to do is get rid of two of the excess cables I currently have in there without having to bury them under the hard drives.

The 24pin, cpu power, and a PCI-E power connector are hardwired I think. The rest are modular. So it shouldnt make any difference

Idleman · 26 Apr 2013 at 23:47

acme15 said:
The 24pin, cpu power, and a PCI-E power connector are hardwired I think. The rest are modular. So it shouldnt make any difference

Correct.

Type of connector: XFX XPS-750W-BES
ATX connector (500mm) 20+4 pin
4+4 pin EPS12V/ATX12V connector (530mm) 1
8 pin EPS12V (530mm) 1
6+2 pin PCIe (570mm) 2
Modular Cables
SATA (350mm+150mm+150mm) 3
SATA (450mm+150mm+150mm) 3
SATA (550mm+150mm+150mm) 3
5.25" Drive (350mm+150mm) 2
5.25" Drive (450mm+150mm+150mm) 3
5.25" Drive (550mm+150mm+150mm) 3
Single 5.25" to dual 3.5" Drive adapter (150mm) 1
6+2 pin PCIe (550mm) 2
Unit Dimensions(L x W x H)
170mm x 150mm x 86mm

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=184

Akagi · 26 Apr 2013 at 23:56

Ah I wasnt quite right, there are two hardwired PCI-E connectors. I thought there was just one

deFiniLoGy · 27 Apr 2013 at 01:47

go for a Seasonic

u wont regret it!!

Akagi · 27 Apr 2013 at 10:36

deFiniLoGy said:
go for a Seasonic
u wont regret it!!

The XFX is Seasonic

Leprechaun312 · 27 Apr 2013 at 10:48

RJC said:
Your only running on CPU with 4 cores, not 4 actual CPUs.

i completely missed that

Selachi · 27 Apr 2013 at 12:47

Yeah, the reason I ticked that is because the thermaltake calculator I posted says this:

Attention: Dual or Quad Sockets means you have more than one physical CPU