850W Haswell compatible Modular PSU

Associate
Joined
24 Dec 2007
Posts
736
I've been looking around at PSU's for a 4770k at around 4.6-4.8GHz with a single 7950 at the moment. I'm looking at a price around £100-£120 but there's just so much choice and I really have no idea about PSU's.

I've been looking at the 850W XFX Pro XXX Bronze (P1-850X-XXB9) which I can get elsewhere for about £95 but I'm just wondering if I'd be better off with something like a Corsair for a bit more money or if that would be a good PSU?

I'm just wondering how much more expensive a fully modular PSU is and if they're worth the extra price?
 
Thanks for the quick reply, mate. Since they're all semi-modular I think i'd stick with the XFX for that price range. How much more expensive are the fully modular PSU's?
 
What about a Corsair HX 750W ATX from 2010 - would that be ok with a Haswell i5 or 7?

Sorry for hijacking this thread.

Hood
 
Last edited:
Seasonic G series 750w '80 Plus Gold' Modular Power Supply is nice,

Antec High Current Gamer 750W Modular '80 Plus Bronze' Power Supply
the only cables that are not modular are the 24pin and 4+4pin that you would need to use no matter what. so in respects it is fully modular

YOUR BASKET
1 x Corsair RM Series RM 750 '80+ Gold' 750W Power Supply (CP-9020055-UK) £101.99
Total : £111.89 (includes shipping : £8.25).



this is fully modular with full black cables, there flat cables, it's gold efficiency, and to top the cake it made to run silent even under full load.
it will take your spec no problem
 
YOUR BASKET
1 x Corsair RM Series RM 750 '80+ Gold' 750W Power Supply (CP-9020055-UK) £101.99
Total : £111.89 (includes shipping : £8.25).



this is fully modular with full black cables, there flat cables, it's gold efficiency, and to top the cake it made to run silent even under full load.
it will take your spec no problem

Is 750W enough for 2x 7950 or 2x7970's? I'm probably not gonna go down that route but just incase you know.

How come that is so cheap? Fully modular and gold rating, surely that should be more expensive than it is. Is there a tradeoff somewhere to allow it to be so cheap? Cus if not I'm really liking the look of that, and the gold logo would match the Z87-pro quite well too.

Also, I noticed that's not in the haswell compatible list. Is that going to be a problem or is that sort of meaningless as a consideration? What exactly does that even mean?
 
Last edited:
Is 750W enough for 2x 7950 or 2x7970's? I'm probably not gonna go down that route but just incase you know.

How come that is so cheap? Fully modular and gold rating, surely that should be more expensive than it is. Is there a tradeoff somewhere to allow it to be so cheap? Cus if not I'm really liking the look of that, and the gold logo would match the Z87-pro quite well too.

Also, I noticed that's not in the haswell compatible list. Is that going to be a problem or is that sort of meaningless as a consideration? What exactly does that even mean?

its a new psu on the market, and ANY psu will run haswell. its just a CPU not a nuke
it not cheap its just at a good price
i would say yes to it running crossfire but only single GPU cards
 
750W will run 2 7950's nicely. 7970's, you'll probably lose a little efficiency due to being over 80% load, but a good quality unit will still run them absolutely fine.

With regard to Haswell compatibility, I believe Haswell has new low power states and I believe that's what the compatibility is referring to?

A "non-compatible" PSU will power it just the same, I think you just lose some efficiency when the system is sleeping, thus negating the point in going for a gold rated PSU a little if you use sleep mode.
 
Last edited:
its a new psu on the market, and ANY psu will run haswell. its just a CPU not a nuke
it not cheap its just at a good price
i would say yes to it running crossfire but only single GPU cards

Hmm, well thanks for putting me onto that, mate, because that seems to be everything I was looking for!

750W will run 2 7950's nicely. 7970's, you'll probably lose a little efficiency due to being over 80% load, but a good quality unit will still run them absolutely fine.

With regard to Haswell compatibility, I believe Haswell has new low power states and I believe that's what the compatibility is referring to?

A "non-compatible" PSU will power it just the same, I think you just lose some efficiency when idling, thus somewhat negating the point in going for a gold rated PSU.

I'm probably not gonna go the crossfire route again as I've decided to start sticking with single card solutions, I just wanted the option just incase.

That's what I just read too about Haswell compatibility. I also read that most motherboards have something disabled by default which fixes the problem a bit. If it's just efficiency I really don't mind as it's mostly the quiet PSU and fully modular bits which I care about. I also like the fully black and flat cables on it too.

I appreciate your quick replies too guys, thanks.
 
Last edited:
Back
Top Bottom