BFG 650W PSU enough for two HD 5750s?

[Edwin Phate]

Can i use my BFG BFG 650watt psu http://www.newegg.com/Product/ProductReview.aspx?Item=N82E16817702003

to power two Hd radeon 5750s? I read it needs 12V1@48A but i only have 40. 20A x2?

Would i be safe or not?

 

[Ritwik7]

It will run but not a good idea.

Also, 20A on each 12V rail is not equivalent to 40A. It should be lesser. Check the side of your PSU to determine the max power output from the 12V rails combined.

 

[raybay]

Should work fine... if the physical size is correct...
It would be good to know where to find the model number and specs, or who is the seller.
Any reason why you want that one, over others?

 

[red1776]

20A on each 12V rail is not equivalent to 40A. It should be lesser.

what exactly do you mean there Rit?

 

[Edwin Phate]

Should work fine... if the physical size is correct...
It would be good to know where to find the model number and specs, or who is the seller.
Any reason why you want that one, over others?

what do you mean the size? btw in the newegg link it shows the specs.

 

[red1776]

he means if the physical dimensions of the the unit will fit in your case.

 

[Edwin Phate]

oh yea it does i already have one and there is plenty room i have a crossfire motherboard up to 3x

 

[Edwin Phate]

CPU maker: amd
CPU: AMD Athlon II X4 630 (2.8GHz)
Motherboard: ASRock M3A785GXH/ 128
Bios: american megatrends inc P1.70
GPU maker: ati
Graphics Card: XfX Radeon HD5750
Memory: Kingston KVR1333D3N9K2/4G DDR3-1333 4GB (2x2GB)
Hard Drive: Western Digital Caviar Blue WD3200AAJS 320GB SATA2
Optical Drive: Samsung TS-H663B 22X DVDRW SATA Internal Drive
Power Supply: BFG 650Watt
Display: 32IN HDTV 1080P
Case: APEX Vortex 3620 M-ATX
Sound Card: HD onboard
Speakers: 4.1 surround
Operating System: Windows 7 Ultimate 64bit
Cooling
CPU: stock
Graphics Card (GPU): stock
Case: 2x 120mm
pixel
Speeds
CPU
Stock: 2.8
Overclocked: 3.1

I have a xfx radeon hd5750 installed i just oredered the 2nd last night. Its from Msi though.

 

[Ritwik7]

@ red1776 - 20A on each 12V rail will not give a power output of 2x20x12 = 480W.

Check here: http://www.dslreports.com/forum/r22085001-PSU-Terminology-question-40A-on-12V-Rail

 

[Edwin Phate]

okay thanks i guess ill just have to fork out more cash.any suggestions i know i can do 3x hd 5750s but i heard the 3rd card usage is like 50%


I ended up buying this psu http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006 and since it was a combo deal I got this extra storage drive. http://www.newegg.com/Product/Product.aspx?Item=N82E1682213659 -$30 off thanks to combo deal and this is the second graphics card i bought http://www.newegg.com/Product/Product.aspx?Item=N82E16814127494R

Thank you everyone for your input its very much appreciated.