Sign in with
Sign up | Sign in
Your question

Power Supply recommendation needed!

Last response: in Systems
Share
March 10, 2012 10:27:51 AM

Ok so i've got these parts at the moment -
Running a XFX AMD 6870 Black Edition
AMD Phenom II x4 965 BE (/w Coolermaster Hyper TX3 Evo)
16GB Corsair Vengeance DDR3 RAM
Coolermaster Scout with 4 x 120mm Fans
1TB Western Digital Caviar Green SATA HDD
ASUS M4A785TD-V EVO

So basically, Budget is key for me (poor student don't have money to spare) I have no idea about the importance of a PSU grading, like is it important that I buy a reputable brand? Are there some things that I will need to look at in terms of what wattage i'll need?
Like for example, will - http://www.cclonline.com/product/42157/PC-550AUBA-M/Pow... do the job?
Or can I get away with something like - http://www.cclonline.com/product/42171/650UT/Power-Supp...

Someone please help, in the past i've always used cheapo PSU's and never really encountered too many power issues? But this has been in less hungry systems, and ATM i'm stuck, all I need is a psu to get things up and running. I don't realistically want to be spending more than £50 on a PSU if possible, any suggestions? :ange: 
a c 87 ) Power supply
March 10, 2012 11:22:24 AM

XFX Pro 450W Core Edition £38
http://www.cclonline.com/product/55411/P1-450S-XXB9/Pow...
For virtually the same price as the 550W PowerCool this is going to be much better quality, more efficient, known to be able to deliver what it claims continuously at high temperatures.

The 6870 needs two PCIe connectors, which the CIT '650W' unit doesn't have.

http://www.anandtech.com/show/4137/amds-gtx-560-ti-coun...
Shows a system using an i7-920 (roughly as power hungry as a Phenom II X4) and an XFX 6870 BE drawing 322W at the wall under Furmark (unrealistic load).
10-20% can be taken off this number to get an idea of what the system actually needs in terms of power supply unit.
a b ) Power supply
March 10, 2012 7:49:32 PM

You can have a look at the PSU guide linked in my sig for a better understanding.

The XFX is a fine choice. If you want a bit more power up front, just in case you upgrade the GPU at some point, this OCZ 550W is also a good buy
http://www.cclonline.com/product/60911/OCZ-ZS550W-UK/Po...

This is the first time I have seen this cclonline website. They seem to have prices as good or better than scan? Have they been around a while?
Related resources
a c 87 ) Power supply
March 10, 2012 8:57:36 PM

Proximon said:
This is the first time I have seen this cclonline website. They seem to have prices as good or better than scan? Have they been around a while?

They've been around at least as long as I've been buying hardware (circa 2009) and have used them a few times no problems.
March 10, 2012 9:37:00 PM

Proximon said:
You can have a look at the PSU guide linked in my sig for a better understanding.

The XFX is a fine choice. If you want a bit more power up front, just in case you upgrade the GPU at some point, this OCZ 550W is also a good buy
http://www.cclonline.com/product/60911/OCZ-ZS550W-UK/Po...

This is the first time I have seen this cclonline website. They seem to have prices as good or better than scan? Have they been around a while?


Thanks for the recommendation, and yeah, CCL is local to me and the staff there are really well informed, i've been buying from them for more than 5 years.
March 10, 2012 9:49:39 PM

IF you have the money (~$250) I would suggest getting a PSU from Corsair in their Server-Grade category. They come with a 7-year warranty. I love mine!

CORSAIR Professional Series Gold AX1200 (CMPSU-1200AX) 1200W ATX12V v2.31 / EPS12V v2.92 SLI Certified 80 PLUS GOLD Certified Modular Active PFC Power Supply

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

a c 259 ) Power supply
March 10, 2012 11:15:47 PM

jonathanrhunter said:
IF you have the money (~$250) I would suggest getting a PSU from Corsair in their Server-Grade category. They come with a 7-year warranty. I love mine!

CORSAIR Professional Series Gold AX1200 (CMPSU-1200AX) 1200W ATX12V v2.31 / EPS12V v2.92 SLI Certified 80 PLUS GOLD Certified Modular Active PFC Power Supply

http://www.newegg.com/Product/Product.aspx?Item=N82E168...



Oh yeah everyone needs a 1200w power supply! Especially for a single HD6870. :lol: 

March 18, 2012 2:29:52 AM

The way that GPU wattage is increasing, yeah...

Also 1200W at 80% efficiency is 960W... but I guess you knew that.
a b ) Power supply
March 18, 2012 4:39:12 AM

jonathanrhunter said:
The way that GPU wattage is increasing, yeah...

Also 1200W at 80% efficiency is 960W... but I guess you knew that.


False. Please see the PSU guide linked in my sig before you hand out any more false information.
March 18, 2012 5:20:18 PM

Ah yes, after a little more reading, I do withdraw my stupid remark. I understood it the other way. Thanks for pointing me in the right direction.

A 850W at 85% efficiency would draw 1000W.

That makes more sense, thanks!
!