New PSU Needed

gcaster · 24 May 2011 at 21:49

Just bought another 6950 to flash and run alongside my current flashed one in crossfire and as such I need a new PSU.
I need it ASAP and the budget is around £100.

Requirements:
As quiet as possible.
Modular.
Reliable.
Around 1kW.

Any help would be much appreciated.

Cheers

RJC · 24 May 2011 at 21:54

What's your current PSU?

1000w is slightly overkill.

tidusjar · 24 May 2011 at 22:04

I recommend this Corsair Enthusiast Series TX 850W V2 High Performance
as you may not need 1000W+ Whats your full specs?

gcaster · 24 May 2011 at 22:38

My Current PSU is an 800W Tagan Dual Engine PSU.

Full Spec is:

MSI P67A-GD65
Intel Core i5 2500k (@ 4.8GHz, 1.4V)
XFX HD 6950>6970 (@950MHz, 1450, 1.175V)
MSI HD 6950 (Hoping to flash and run at similar clocks)
GSkill RipjawsX 4GB C7
Intel 320 SSD 40GB
Samsung PB22-J SSD 64GB
2 x WD Caviar Green 1TB, 500GB
Seagate Barracuda 500GB
Pioneer BD-ROM
NZXT Phantom Fan Controller (In-Case)
2 x 200mm NZXT Fans (1 LED)
3 x 120mm NZXT Fans
2 x Akasa Vipers
Alphacool Laing D5 Vario
2 x Cold Cathodes

I would like the option to add more RAM and a dedicated sound card in future.

If I think of anything else I'll let you know

RJC · 24 May 2011 at 22:57

Your current PSU should be able to handle your system fine, Andantech report that 2 6970 in crossfire pulls 601w with Furmark and 560w when gaming. This includes the system as well which they usually use a slightly overclocked i7.

My rig in my sig pulls 500w full load from the mains which is also water-cooled.

LiamJ · 24 May 2011 at 22:59

XFX 850W, OCZ ZX 850W, Coolermaster Silent Pro 850W.

gcaster · 24 May 2011 at 23:15

RJC said:
Your current PSU should be able to handle your system fine, Andantech report that 2 6970 in crossfire pulls 601w with Furmark and 560w when gaming. This includes the system as well which they usually use a slightly overclocked i7.

My rig in my sig pulls 500w full load from the mains which is also water-cooled.

Sorry forgot to specify, the problem with my current PSU isn't the capacity. It's a damn good PSU but unfortunately only has 2 6-pin PCI-E power connections whereas I'm obviously going to need 4.
Good to know about that AnandTech report, I was using Antec's Wattage calculator which was giving me a figure of low 800s max total draw - I guess they err on the side of caution!

LiamJ said:
XFX 850W, OCZ ZX 850W, Coolermaster Silent Pro 850W.

Thanks, I will look into these 3 further and decide on which to take.

skid34 · 24 May 2011 at 23:45

i bought one of these from here, but they dont seem to stock them now.
http://www.hardwareheaven.com/reviews/709/pg1/akasa-freedom-power-1000w-psu-introduction.html

very happy with it

gcaster · 25 May 2011 at 02:45

I've finally made my decision and have settled on the CoolerMaster.

The OCZ was a tad too steep price wise and XFXs bad rep with support has put me off going with them. A mate of mine has the Silent Pro Gold so I know it's going to be quiet which is good, I also liked that the CM PSU seems a bit more flexible than the XFX with the cables provided (a few more options offered) which might come in handy in future.

Sad to say I didn't put the order in at OCUK but a couple of comeptitors have this in at almost £20 cheaper! I was going to order the 1kW earlier but was too slow and by the time I'd gone to checkout it was back at full price.

RiskyRix · 25 May 2011 at 02:51

what about a corsair tx850w v2?

hybrid572 · 25 May 2011 at 07:53

The Coolermaster is a bit of a budget model, and although it can deliver the stated wattage, I'd recommend the Corsair HX 850W over it, as it's a far better unit, with a considerably better track record for reliability.