Overclock.net › Forums › Graphics Cards › AMD/ATI › 5850 power draw
New Posts  All Forums:Forum Nav:

5850 power draw

post #1 of 27
Thread Starter 
quick question, can a 400W PSU handle 2 1 5850 (stock voltage)? It has two 18A 12V rails. If not, then what would be the minimum required?

The card will be put in along with an Intel Celeron E3400 45nm CPU, 2GB of RAM, and 1 SATA HDD. (all stock)
Edited by melterx12 - 5/1/11 at 5:29pm
post #2 of 27
no
650 at least
post #3 of 27
I wouldn't, and I doubt it'd do it.

You'd need at least a decent 550W, preferably a 650W.
    
CPUMotherboardGraphicsRAM
3570k GA-Z77MX-D3H Palit Jetstream 680 4GB 4 X 2GB G.Skill Ripjaws X (1600MHz/CAS8 @ 1.5v) 
Hard DriveCoolingOSMonitor
60GB Corsair Force + 2TB RAID0 + 500GB Antec Kühler 620 w/AP-14 Windows 7 Professional x64 Dell U2711 (2560 x 1440) 
KeyboardPowerCaseMouse
Filco Majestouch (MX Blues) Corsair HX650 Lian Li PC-U6B Razer Deathadder 3.5G 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
3570k GA-Z77MX-D3H Palit Jetstream 680 4GB 4 X 2GB G.Skill Ripjaws X (1600MHz/CAS8 @ 1.5v) 
Hard DriveCoolingOSMonitor
60GB Corsair Force + 2TB RAID0 + 500GB Antec Kühler 620 w/AP-14 Windows 7 Professional x64 Dell U2711 (2560 x 1440) 
KeyboardPowerCaseMouse
Filco Majestouch (MX Blues) Corsair HX650 Lian Li PC-U6B Razer Deathadder 3.5G 
  hide details  
Reply
post #4 of 27
650w would be safe

I had a 750w and with my sig rig I was pushing that really hard, it would whine loud when I was folding or benching.
post #5 of 27
Thread Starter 
ok, can it handle 1 card at least?
post #6 of 27
From: http://www.guru3d.com/article/radeon-hd-5850-review-crossfire/9
Quote:
Recommended Power Supply

So here's my power supply recommendation:

Radeon HD 5850

The card requires you to have a 500 Watt power supply unit at minimum if you use it in a high-end system. That power supply needs to have (in total accumulated) at least 40 Amps available on the +12 volts rails.
Radeon HD 5850 CrossfireX

A second card requires you to add another 170 Watts. You need a 650+ Watt power supply unit if you use it in a high-end system. That power supply needs to have (in total accumulated) at least 55~60 Amps available on the +12 volts rails.
For each card that you add, add another 200 Watts as a safety margin
Pro Tem
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5 25oo MSI P67A-GD65 B3 MSi GTX56oTX-Ti Asus Direct CUii GTX56o Ti 
RAMHard DriveOptical DriveCooling
CORSAIR XMS3 8GB C3oo 128GB / 2x5ooGB WDGreen / 1.5TB SG LG DvD Burner Hyper 212+ 
OSMonitorPowerCase
Win7 HP 64 AcerH233H / Acer X2o3H Antec 75oW Raidmax Smilodon Extreme fan mod 
  hide details  
Reply
Pro Tem
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5 25oo MSI P67A-GD65 B3 MSi GTX56oTX-Ti Asus Direct CUii GTX56o Ti 
RAMHard DriveOptical DriveCooling
CORSAIR XMS3 8GB C3oo 128GB / 2x5ooGB WDGreen / 1.5TB SG LG DvD Burner Hyper 212+ 
OSMonitorPowerCase
Win7 HP 64 AcerH233H / Acer X2o3H Antec 75oW Raidmax Smilodon Extreme fan mod 
  hide details  
Reply
post #7 of 27
Thread Starter 
wow, really? I ran a GTX 260 on this PSU for a couple of months without problems..
post #8 of 27
From: http://www.guru3d.com/article/geforce-gtx-260-review/4
Quote:
Full 3D performance mode: varies - worst case TDP 182W for GTX 260


As said earlier, I would consider a 650w PSU. I don't know what CPU, RAM, etc is going to be installed with the 2 5850s, but they need watts too.
Edited by grishkathefool - 5/1/11 at 4:57pm
Pro Tem
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5 25oo MSI P67A-GD65 B3 MSi GTX56oTX-Ti Asus Direct CUii GTX56o Ti 
RAMHard DriveOptical DriveCooling
CORSAIR XMS3 8GB C3oo 128GB / 2x5ooGB WDGreen / 1.5TB SG LG DvD Burner Hyper 212+ 
OSMonitorPowerCase
Win7 HP 64 AcerH233H / Acer X2o3H Antec 75oW Raidmax Smilodon Extreme fan mod 
  hide details  
Reply
Pro Tem
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5 25oo MSI P67A-GD65 B3 MSi GTX56oTX-Ti Asus Direct CUii GTX56o Ti 
RAMHard DriveOptical DriveCooling
CORSAIR XMS3 8GB C3oo 128GB / 2x5ooGB WDGreen / 1.5TB SG LG DvD Burner Hyper 212+ 
OSMonitorPowerCase
Win7 HP 64 AcerH233H / Acer X2o3H Antec 75oW Raidmax Smilodon Extreme fan mod 
  hide details  
Reply
post #9 of 27
Thread Starter 
Quote:
Originally Posted by grishkathefool;13345712 
From: http://www.guru3d.com/article/geforce-gtx-260-review/4



As said earlier, I would consider a 650w PSU. I don't know what CPU, RAM, etc is going to be installed with the 2 5850s, but they need watts too.

updated original post, Its gonna go with an E3400 45nm, 2GB of Ram, and 1 HDD - no overclocking.
post #10 of 27
Figure that you need ~170w full load for the 5850, ~130w when the E3400 is full load, <100w for the RAM... 400w will be cutting it close, but should work for that particular set-up.
Pro Tem
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5 25oo MSI P67A-GD65 B3 MSi GTX56oTX-Ti Asus Direct CUii GTX56o Ti 
RAMHard DriveOptical DriveCooling
CORSAIR XMS3 8GB C3oo 128GB / 2x5ooGB WDGreen / 1.5TB SG LG DvD Burner Hyper 212+ 
OSMonitorPowerCase
Win7 HP 64 AcerH233H / Acer X2o3H Antec 75oW Raidmax Smilodon Extreme fan mod 
  hide details  
Reply
Pro Tem
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5 25oo MSI P67A-GD65 B3 MSi GTX56oTX-Ti Asus Direct CUii GTX56o Ti 
RAMHard DriveOptical DriveCooling
CORSAIR XMS3 8GB C3oo 128GB / 2x5ooGB WDGreen / 1.5TB SG LG DvD Burner Hyper 212+ 
OSMonitorPowerCase
Win7 HP 64 AcerH233H / Acer X2o3H Antec 75oW Raidmax Smilodon Extreme fan mod 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › 5850 power draw