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Power supply question for 2 7770's

post #1 of 4
Thread Starter 
I just picked up a second Sapphire 7770 to Crossfire... My power supply is 750w. Will that be enough or do I need a new power supply?
Budget build
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8320 ASUS SABERTOOTH 990FX R2.0 XFX 7990 Crucial Ballistix DDR3 8GB (2x4GB) 
Hard DriveHard DriveHard DriveOptical Drive
Kingston 120GB SSD Silicon Power 120GB SSD  Seagate SATA LG DVD-RW  
CoolingOSMonitorPower
Corsair H80i Windows 8.1 Pro Dell 22" 1080p EVGA SuperNOVA 850 G2 
Audio
Logitech Z13 
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Budget build
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8320 ASUS SABERTOOTH 990FX R2.0 XFX 7990 Crucial Ballistix DDR3 8GB (2x4GB) 
Hard DriveHard DriveHard DriveOptical Drive
Kingston 120GB SSD Silicon Power 120GB SSD  Seagate SATA LG DVD-RW  
CoolingOSMonitorPower
Corsair H80i Windows 8.1 Pro Dell 22" 1080p EVGA SuperNOVA 850 G2 
Audio
Logitech Z13 
  hide details  
Reply
post #2 of 4
thats plenty
First Rig
(23 items)
 
Toshiba laptop
(8 items)
 
 
CPUMotherboardGraphicsRAM
fx-6300 gigabyte ud3 amd powercolor 7950 team  
RAMHard DriveHard DriveHard Drive
team 500g seagate 1 TB Samsung sp600 256gb 
Hard DriveOptical DriveCoolingOS
sp 256gb sony x24 thermaltake frio win7 
MonitorMonitorMonitorKeyboard
sony 24in 1080p 3d hp 1600x900 samsung LED 1600x900 cooler master quik fire tk blues 
PowerCaseMouseMouse Pad
evga 1000w PS air 540 steelseries Rival pcmastinggamingrace xxl 
AudioAudioAudio
mackie cr3 bose around the ears audio technica m30s 
CPURAMHard DriveOptical Drive
a6-3400m 6g toshiba 640g toshiba blu-ray 
OSMonitorMouseAudio
win 8 1600x900 17in logitech m570 right speaker 
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First Rig
(23 items)
 
Toshiba laptop
(8 items)
 
 
CPUMotherboardGraphicsRAM
fx-6300 gigabyte ud3 amd powercolor 7950 team  
RAMHard DriveHard DriveHard Drive
team 500g seagate 1 TB Samsung sp600 256gb 
Hard DriveOptical DriveCoolingOS
sp 256gb sony x24 thermaltake frio win7 
MonitorMonitorMonitorKeyboard
sony 24in 1080p 3d hp 1600x900 samsung LED 1600x900 cooler master quik fire tk blues 
PowerCaseMouseMouse Pad
evga 1000w PS air 540 steelseries Rival pcmastinggamingrace xxl 
AudioAudioAudio
mackie cr3 bose around the ears audio technica m30s 
CPURAMHard DriveOptical Drive
a6-3400m 6g toshiba 640g toshiba blu-ray 
OSMonitorMouseAudio
win 8 1600x900 17in logitech m570 right speaker 
  hide details  
Reply
post #3 of 4
That'll do just fine thumb.gif
Z'Gok
(14 items)
 
Lord Lycan
(13 items)
 
 
CPUMotherboardGraphicsRAM
Q6700 @ 3.2GHz GIGABYTE EP45-UD3L Sapphire 5770 Juniper XT G.Skill 2x2gb 
Hard DriveOptical DriveOSMonitor
Western Digital 160GB Hitachi 250 GB Barracuda 1TB Sony Optiarc 24X Windows 7 Ultimate Acer H203H 
PowerCase
Silencer 750 Cooler Master Storm Scout 
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Z'Gok
(14 items)
 
Lord Lycan
(13 items)
 
 
CPUMotherboardGraphicsRAM
Q6700 @ 3.2GHz GIGABYTE EP45-UD3L Sapphire 5770 Juniper XT G.Skill 2x2gb 
Hard DriveOptical DriveOSMonitor
Western Digital 160GB Hitachi 250 GB Barracuda 1TB Sony Optiarc 24X Windows 7 Ultimate Acer H203H 
PowerCase
Silencer 750 Cooler Master Storm Scout 
  hide details  
Reply
post #4 of 4
Thread Starter 
SWEEEEEET. I was worried that 750 wouldn't be enough for a crossfire setup smile.gif This will be a fun fun weekend
Budget build
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8320 ASUS SABERTOOTH 990FX R2.0 XFX 7990 Crucial Ballistix DDR3 8GB (2x4GB) 
Hard DriveHard DriveHard DriveOptical Drive
Kingston 120GB SSD Silicon Power 120GB SSD  Seagate SATA LG DVD-RW  
CoolingOSMonitorPower
Corsair H80i Windows 8.1 Pro Dell 22" 1080p EVGA SuperNOVA 850 G2 
Audio
Logitech Z13 
  hide details  
Reply
Budget build
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8320 ASUS SABERTOOTH 990FX R2.0 XFX 7990 Crucial Ballistix DDR3 8GB (2x4GB) 
Hard DriveHard DriveHard DriveOptical Drive
Kingston 120GB SSD Silicon Power 120GB SSD  Seagate SATA LG DVD-RW  
CoolingOSMonitorPower
Corsair H80i Windows 8.1 Pro Dell 22" 1080p EVGA SuperNOVA 850 G2 
Audio
Logitech Z13 
  hide details  
Reply
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