Overclock.net › Forums › Graphics Cards › AMD/ATI › HD 7950 crossfire on a 650Watt PSU?
New Posts  All Forums:Forum Nav:

HD 7950 crossfire on a 650Watt PSU?

post #1 of 7
Thread Starter 
Sup lads,

I'm wondering if an Antec True Power new 80 plus Bronze PSU would be enough to power two 7950 on crossfire, i7 2600k @ stock/4.2Ghz, Raza Kit pump, 2 HDD and 1 SSD...?

It would be very nice if a PSU Guru share his knowledge on the matter, cuz most of the people will say NO, but I've heard its enough. I just want to confirm it...

Thanks a lot!
The Red Box
(14 items)
 
The Red Note
(5 items)
 
 
CPUGraphicsRAMHard Drive
Intel i5 3230M  NVIDIA GeForce GT 650M Sli 6GB 1TB + 16SSD cache 
OS
Windows 8 - 64Bits 
  hide details  
Reply
The Red Box
(14 items)
 
The Red Note
(5 items)
 
 
CPUGraphicsRAMHard Drive
Intel i5 3230M  NVIDIA GeForce GT 650M Sli 6GB 1TB + 16SSD cache 
OS
Windows 8 - 64Bits 
  hide details  
Reply
post #2 of 7
You'd be cutting it close, but it may be possible. I recommend throwing your parts in pcpartpicker.com. Then look in the top right corner of the chart. It'll list the estimated wattage there.
post #3 of 7
Im no expert but I think its enough. Most people over do the PSUs.
AMD
(18 items)
 
 
Blogging
(3 items)
 
CPUMotherboardGraphics
Intel Mobile Core 2 Duo T7300 7665AM8 NVIDIA Quadro NVS 140M 
  hide details  
Reply
AMD
(18 items)
 
 
Blogging
(3 items)
 
CPUMotherboardGraphics
Intel Mobile Core 2 Duo T7300 7665AM8 NVIDIA Quadro NVS 140M 
  hide details  
Reply
post #4 of 7
Quote:
Originally Posted by DeusAres View Post

You'd be cutting it close, but it may be possible. I recommend throwing your parts in pcpartpicker.com. Then look in the top right corner of the chart. It'll list the estimated wattage there.

agree. 650w is too close for HD 7950 CF. i would say no voltage OC. maybe aim for 1.05 ghz - 1.1 ghz at stock voltage.
Fragbox
(14 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5 2400 DH67BL AMD Radeon HD 6900 Series XFX HD 6950 2GB 
RAMRAMHard DriveOptical Drive
Corsair Corsair DDR3 1333 Mhz 2 GB Corsair DDR3 1333 Mhz 2 GB Western Digital Caviar Green SONY DVD-RW AD-7260S 
OSMonitorKeyboardPower
Windows 7 Professional 32 bit BENQ G2420HD Logitech K200 Seasonic VX550 psu 
CaseMouse
ANTEC 200 V2 Logitech mouse 
  hide details  
Reply
Fragbox
(14 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5 2400 DH67BL AMD Radeon HD 6900 Series XFX HD 6950 2GB 
RAMRAMHard DriveOptical Drive
Corsair Corsair DDR3 1333 Mhz 2 GB Corsair DDR3 1333 Mhz 2 GB Western Digital Caviar Green SONY DVD-RW AD-7260S 
OSMonitorKeyboardPower
Windows 7 Professional 32 bit BENQ G2420HD Logitech K200 Seasonic VX550 psu 
CaseMouse
ANTEC 200 V2 Logitech mouse 
  hide details  
Reply
post #5 of 7
I haven't had any issues, but I'm running a mild OC compared to most.
post #6 of 7
Thread Starter 
I was looking at some charts the other day and looks like it can handle it alright. I ran two 6950 oced and 7950 draws less or the same amount of juice.

Thanks for the response guys! +reps
The Red Box
(14 items)
 
The Red Note
(5 items)
 
 
CPUGraphicsRAMHard Drive
Intel i5 3230M  NVIDIA GeForce GT 650M Sli 6GB 1TB + 16SSD cache 
OS
Windows 8 - 64Bits 
  hide details  
Reply
The Red Box
(14 items)
 
The Red Note
(5 items)
 
 
CPUGraphicsRAMHard Drive
Intel i5 3230M  NVIDIA GeForce GT 650M Sli 6GB 1TB + 16SSD cache 
OS
Windows 8 - 64Bits 
  hide details  
Reply
post #7 of 7
I think you should be ok, if you have a well rated PSU and if you don't OC too high thumb.gif
Vader
(17 items)
 
OptimusPrime
(15 items)
 
 
CPUMotherboardGraphicsRAM
Q6600 @ 3.87 (9x430) Abit IP35 Pro Gigabyte 1GB GTX 460 @ 870/1740/4000 Patriot Extreme Performance & Crucial BallistiX... 
Hard DriveHard DriveHard DriveOS
500 GB SAMASUNG (OS) 750 GB Hitachi (Storage/Games) 1.5 TB WD Green Drive (Storage) Win7 Pro 64 bit 
Power
550W Antec NEOPower 
  hide details  
Reply
Vader
(17 items)
 
OptimusPrime
(15 items)
 
 
CPUMotherboardGraphicsRAM
Q6600 @ 3.87 (9x430) Abit IP35 Pro Gigabyte 1GB GTX 460 @ 870/1740/4000 Patriot Extreme Performance & Crucial BallistiX... 
Hard DriveHard DriveHard DriveOS
500 GB SAMASUNG (OS) 750 GB Hitachi (Storage/Games) 1.5 TB WD Green Drive (Storage) Win7 Pro 64 bit 
Power
550W Antec NEOPower 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › HD 7950 crossfire on a 650Watt PSU?