Which 650W PSU

ReCoN1989 · 9 Dec 2014 at 04:43

I am looking for a PSU for a new build spec as follows:

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor
Motherboard: ASRock Z97 EXTREME6 ATX LGA1150 Motherboard
Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-2133 Memory
Storage: Crucial M4 256GB 2.5" Solid State Drive
Storage: Additional 2-3 mechanical hard drives.
GPU: Will either be a 280X/GTX770/GTX780 depending on what I can find.

I am assuming I will be looking at a 650W PSU or an 850W if I wanted to go crossfire/SLI (which I don't currently). Which of the following would be best:
EVGA SuperNova G1 650W '80 Plus Gold' Modular Power Supply (120-G1-0650-XR)
Seasonic X-Series 650w '80 Plus Gold' Modular Power Supply
SuperFlower Leadex GOLD 650W Fully Modular "80 Plus Gold" Power Supply - Black
Or the XFX XTR Series 650w 80+ Gold Fully Modular Psu (which I believe is made by Seasonic) but sadly not stocked by OCUK

ReCoN1989 · 9 Dec 2014 at 11:34

When I enter all the components I come up with 423W, I feel that adding a couple of HD, fans and over clocking would likely bump that up to around the 500W. Would 550W really give enough headroom? And considering efficiency curves is it a false economy to save a few pounds on the PSU?

Superflower receives a lot of love here, for me Seasonic are excellent, I believe the XFX models are Seasonic made, the EVGA also has a 10 year warranty. What makes the superflower the best option?

ReCoN1989 · 9 Dec 2014 at 11:44

Thanks RJC, that's reassuring. 200W should be plenty of headroom.

ReCoN1989 · 9 Dec 2014 at 12:58

Thats interesting, my system will be close to that, is 100W enough headroom?

ReCoN1989 · 9 Dec 2014 at 13:59

Yes I'm unlikely to SLI ever on this platform. If I move to a 4k monitor I would also change platform for the added pci-e lanes. I belive the EVGA I linked in the first post also has the 10 year warranty, are the G1 units inferior?

ReCoN1989 · 9 Dec 2014 at 17:52

That's fair, G1 made by FSP and G2 by superflower? I notice the superflower recommended in #2 and #3 is not modular. I would have a strong preference for a fully modular design.

ReCoN1989 · 9 Dec 2014 at 20:22

Thanks, I'm actually not in a rush for it at all. Is it likely to go on sale over the holiday period?

ReCoN1989 · 9 Dec 2014 at 21:58

I shall try and pick it up when it comes up on this week only. Some people mention annoying LEDs anything to be concerned about?

ReCoN1989 · 11 Dec 2014 at 01:10

Is there an easy way to disable the LEDs? I'm guessing opening up the unit voids the warranty?

ReCoN1989 · 12 Dec 2014 at 21:57

I thought I had decided on the Superflower for £74.99 but OCUK wanting £9.60 delivery when just about all their competitors offer free delivery is giving me second thoughts now. Do OCUK do free shipping on request? I notice there is some free shipping for some forum members however I am not eligible for that.

ReCoN1989 · 17 Dec 2014 at 02:45

I have a fractal design r2, any likely problems?