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Is a 750W enough for this system?

post #1 of 21
Thread Starter 
I am looking to update my video cards and was wondering if the 750w Corsair HX750 psu I have is enough to run them on my current system. The cards I would like to get are 2X XFX 6950's 2G versons

Here is the rest of my system info
-PhenomII 955
-G.SKILL Ripjaws 8GB 4X2GB
-Corsair Storage Solutions F180 SSD 2X in RAID0
-Fans are
3X 250mm
2X 120mm
1X 140mm
-LG GH22N (optical drive)
Black Magic
(13 items)
 
  
CPUMotherboardGraphicsRAM
PhenomII X4 955BE ASUS R.O.G. Crosshair IV Formula 2X XFX 6950 2G G.SKILL Ripjaws 8GB 4X2GB 
Hard DriveOptical DriveOSMonitor
Corsair Storage Solutions F180 SSD 2X in RAID0 LG GH22N Windows7 64 ultimate Samsung SyncMaster2693HM 2X 
KeyboardPowerCaseMouse
Razer Lycosa Corsair Professional HX750W CoolerMaster Storm Sniper Black Razer DeathAdder 3500 
Mouse Pad
Steelseries Qck 
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Black Magic
(13 items)
 
  
CPUMotherboardGraphicsRAM
PhenomII X4 955BE ASUS R.O.G. Crosshair IV Formula 2X XFX 6950 2G G.SKILL Ripjaws 8GB 4X2GB 
Hard DriveOptical DriveOSMonitor
Corsair Storage Solutions F180 SSD 2X in RAID0 LG GH22N Windows7 64 ultimate Samsung SyncMaster2693HM 2X 
KeyboardPowerCaseMouse
Razer Lycosa Corsair Professional HX750W CoolerMaster Storm Sniper Black Razer DeathAdder 3500 
Mouse Pad
Steelseries Qck 
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post #2 of 21
Hx750 will be plenty for that rig.

A good 600w psu would be enough but better to have more than not enough
post #3 of 21
Yep 750w would work well. A quality 600-650w would even do the job.
Main Rig (ITX)
(11 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7-4790k ASUS H97I-PLUS EVGA GeForce GTX 980 Ti FTW Corsair Vengeance DDR3 1600 2 x 4GB 
Hard DriveHard DriveHard DriveOS
Sandisk Z400s Seagate Barracuda 1TB 7200RPM 64MB Cache Seagate Barracuda 2TB 7200 RPM 64MB Cache Windows 10 Pro 
PowerCaseAudio
EVGA 600B Corsair Obsidian 250D M-Audio Mobile Pre 
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Main Rig (ITX)
(11 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7-4790k ASUS H97I-PLUS EVGA GeForce GTX 980 Ti FTW Corsair Vengeance DDR3 1600 2 x 4GB 
Hard DriveHard DriveHard DriveOS
Sandisk Z400s Seagate Barracuda 1TB 7200RPM 64MB Cache Seagate Barracuda 2TB 7200 RPM 64MB Cache Windows 10 Pro 
PowerCaseAudio
EVGA 600B Corsair Obsidian 250D M-Audio Mobile Pre 
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post #4 of 21
With ease.
    
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 
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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 
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post #5 of 21
Yup 750W is more than enough power
    
CPUMotherboardGraphicsRAM
Intel i7 4790k Asus Maximus Impact VII Z97 EVGA GTX 780 Classified Crucial Ballistix VLP 2x8GB 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 830 256GB Seagate 1TB SSHD Lite-On eNAU108-111 Thermalright Ultra Extreme Black 
OSMonitorKeyboardPower
Windows 8.1 Professional Asus PB278Q Das Keyboard Ultimate 4 Seasonic 760W Platinum 
CaseMouseMouse PadAudio
CaseLabs Nova X2M Logitech G602 Razer Scarab Asus Sonar Impact II + AudioEngine A2 
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CPUMotherboardGraphicsRAM
Intel i7 4790k Asus Maximus Impact VII Z97 EVGA GTX 780 Classified Crucial Ballistix VLP 2x8GB 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 830 256GB Seagate 1TB SSHD Lite-On eNAU108-111 Thermalright Ultra Extreme Black 
OSMonitorKeyboardPower
Windows 8.1 Professional Asus PB278Q Das Keyboard Ultimate 4 Seasonic 760W Platinum 
CaseMouseMouse PadAudio
CaseLabs Nova X2M Logitech G602 Razer Scarab Asus Sonar Impact II + AudioEngine A2 
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post #6 of 21
Quote:
Originally Posted by ryanbob1234 View Post
Hx750 will be plenty for that rig.

A good 600w psu would be enough but better to have more than not enough
600w = not enough.
The Butthurt Box
(21 items)
 
   
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P67 Professional AMD Radeon HD 6950 unlock NVIDIA GeForce GTX 460 2gb 
RAMRAMHard DriveHard Drive
G.Skill Ripjaws G.Skill Ripjaws Intel X25-V Seagate Barracuda 
Hard DriveOptical DriveOSMonitor
WD Goflex USB 3.0 24x DVD R/W DL Win7 Ultermate 64 Acer 20in 1600x900 
MonitorMonitorMonitorKeyboard
Compaq 20in 1600x900 17in Dell 1280x1024 19in Gateway 1280x1024 Razer Blackwidow mech w/ cherry MX blues 
PowerCaseMouseAudio
Kingwin LZ-750 HAF 932 + sound activated lights Logitech G500 Rosewill USB headset 
CPUMotherboardGraphicsRAM
Pentium 4 3.2ghz w/ HT HP Intel IGP 4gb Mushkin DDR2 
Hard DriveOSPowerCase
80gb sata WinXP Pro HP OEM HP Small form factor 
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The Butthurt Box
(21 items)
 
   
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P67 Professional AMD Radeon HD 6950 unlock NVIDIA GeForce GTX 460 2gb 
RAMRAMHard DriveHard Drive
G.Skill Ripjaws G.Skill Ripjaws Intel X25-V Seagate Barracuda 
Hard DriveOptical DriveOSMonitor
WD Goflex USB 3.0 24x DVD R/W DL Win7 Ultermate 64 Acer 20in 1600x900 
MonitorMonitorMonitorKeyboard
Compaq 20in 1600x900 17in Dell 1280x1024 19in Gateway 1280x1024 Razer Blackwidow mech w/ cherry MX blues 
PowerCaseMouseAudio
Kingwin LZ-750 HAF 932 + sound activated lights Logitech G500 Rosewill USB headset 
CPUMotherboardGraphicsRAM
Pentium 4 3.2ghz w/ HT HP Intel IGP 4gb Mushkin DDR2 
Hard DriveOSPowerCase
80gb sata WinXP Pro HP OEM HP Small form factor 
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post #7 of 21
Quote:
Originally Posted by railfan844 View Post
600w = not enough.
please elaborate.
post #8 of 21
Enough, you even got headroom for gpu upgrade.
Sandy love
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500K 4.5GHz 1.32V Asus P8P67 PRO 3.0 Sapphire 5850 Hd 900/1250 Mushkin Blackline 2x4GB 1.35V 
Hard DriveOptical DrivePowerCase
Crucial M4 64Gb(boot), Samsung Spinpoint F3 1TB LG Corsair TX850W V2 Haf 932 Advanced 
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Sandy love
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500K 4.5GHz 1.32V Asus P8P67 PRO 3.0 Sapphire 5850 Hd 900/1250 Mushkin Blackline 2x4GB 1.35V 
Hard DriveOptical DrivePowerCase
Crucial M4 64Gb(boot), Samsung Spinpoint F3 1TB LG Corsair TX850W V2 Haf 932 Advanced 
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post #9 of 21
A 600-650W with a good set of +12V rails should be good
ESXi Home Box
(6 items)
 
The Workstation.
(16 items)
 
 
CPURAMHard DriveOS
Dual L5630 72GB DDR3 RECC 120GB VERTEX 4 + 6TB RAID5 ESXi 6.0 U2 
Other
Dell PowedgeR710  
CPUGraphicsRAMHard Drive
Intel Core i5 2.4GHZ Intel Iris Pro 16GB DDR3 256GB PCI-e x2 
OSKeyboardMouse
OSX 10.11 + Win 10 Apple Wireless Keyboard Apple Magic Trackpad 
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ESXi Home Box
(6 items)
 
The Workstation.
(16 items)
 
 
CPURAMHard DriveOS
Dual L5630 72GB DDR3 RECC 120GB VERTEX 4 + 6TB RAID5 ESXi 6.0 U2 
Other
Dell PowedgeR710  
CPUGraphicsRAMHard Drive
Intel Core i5 2.4GHZ Intel Iris Pro 16GB DDR3 256GB PCI-e x2 
OSKeyboardMouse
OSX 10.11 + Win 10 Apple Wireless Keyboard Apple Magic Trackpad 
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post #10 of 21
Quote:
Originally Posted by ryanbob1234 View Post
please elaborate.
http://www.overclock.net/power-suppl...er-supply.html
The Butthurt Box
(21 items)
 
   
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P67 Professional AMD Radeon HD 6950 unlock NVIDIA GeForce GTX 460 2gb 
RAMRAMHard DriveHard Drive
G.Skill Ripjaws G.Skill Ripjaws Intel X25-V Seagate Barracuda 
Hard DriveOptical DriveOSMonitor
WD Goflex USB 3.0 24x DVD R/W DL Win7 Ultermate 64 Acer 20in 1600x900 
MonitorMonitorMonitorKeyboard
Compaq 20in 1600x900 17in Dell 1280x1024 19in Gateway 1280x1024 Razer Blackwidow mech w/ cherry MX blues 
PowerCaseMouseAudio
Kingwin LZ-750 HAF 932 + sound activated lights Logitech G500 Rosewill USB headset 
CPUMotherboardGraphicsRAM
Pentium 4 3.2ghz w/ HT HP Intel IGP 4gb Mushkin DDR2 
Hard DriveOSPowerCase
80gb sata WinXP Pro HP OEM HP Small form factor 
  hide details  
Reply
The Butthurt Box
(21 items)
 
   
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P67 Professional AMD Radeon HD 6950 unlock NVIDIA GeForce GTX 460 2gb 
RAMRAMHard DriveHard Drive
G.Skill Ripjaws G.Skill Ripjaws Intel X25-V Seagate Barracuda 
Hard DriveOptical DriveOSMonitor
WD Goflex USB 3.0 24x DVD R/W DL Win7 Ultermate 64 Acer 20in 1600x900 
MonitorMonitorMonitorKeyboard
Compaq 20in 1600x900 17in Dell 1280x1024 19in Gateway 1280x1024 Razer Blackwidow mech w/ cherry MX blues 
PowerCaseMouseAudio
Kingwin LZ-750 HAF 932 + sound activated lights Logitech G500 Rosewill USB headset 
CPUMotherboardGraphicsRAM
Pentium 4 3.2ghz w/ HT HP Intel IGP 4gb Mushkin DDR2 
Hard DriveOSPowerCase
80gb sata WinXP Pro HP OEM HP Small form factor 
  hide details  
Reply
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