jaywald

Honorable
Jun 30, 2012
144
0
10,680
I'm looking to upgrade my GPU but to do to so I must get a bigger case and a higher wattage PSU.

Here's what it will be powering...
AMD Phenom II x4 965 BE
CM Hyper 212 CPU Cooler
XFX Radeon HD 6950 2GB GDDR5
7200RPM HDD x1
SSD x1
Zalman Z11 Plus Case (probably 8 fans(some LED s))
Fan Controller
DVD RW Drive

I tried a few PSU calculators including Outervision ,which seemed to be the most thorough. It told me I would need a wattage in the high 500's so I'm wary of getting a 600w. I found a 750w OCZ PSU for £60. I realise this is more than I need but it's cheaper than 650w/700w PSUs so I might as well get more for my money. I'm just so surprised by this good price I figure there must be a catch e.g. some spec with the PSU that is really bad that I'm not aware is important.

Here it is, http://www.pcworld.co.uk/gbuk/ocz-zs750w-uk-zx-series-atx-psu-750w-11342078-pdt.html?srcid=867&cmpid=comp~Google~~11342078&istCompanyId=9a35962d-802d-4e67-9721-0a3328ca1f02&istItemId=iqxwaqpt&istBid=t

Could you guys check it out and see if I am really getting a good deal.

Thanks in advance!
 

porl

Distinguished
Oct 15, 2011
54
0
18,640
A lot of people talk about higher watts psu's as overkill but if you look into it those psu's end up being a lot less noisy as there not stressed near to there capacity so and there fans wont spin so fast as a result.
 

jaywald

Honorable
Jun 30, 2012
144
0
10,680


Good point, I'm going to get it.
 

I run an HD6950 in a system that is more power hungry than yours (unless your running a high OC on that 965BE). I'm using a Seasonic M12II-520...the PSU is cool and quiet at full load. In the UK one of the best PSU deals is the XFX Core 550W: http://www.scan.co.uk/products/550w-xfx-pro-series-core-edition-p1-550s-ukb9-85-eff-80-plus-bronze-sli-crossfire-eps-12v-fan-atx-v2 This unit is made by Seasonic and is based on the M12II-520 design but has beefier 12v rails; it is more than sufficient to run your PC and will remain coll/quiet at full load.