Overclock.net › Forums › Components › Power Supplies › 650W minimum for GTX 560 SLI + OC'd 2500K?
New Posts  All Forums:Forum Nav:

650W minimum for GTX 560 SLI + OC'd 2500K?

post #1 of 13
Thread Starter 
This is the proposed build for a computer I'm building for a friend:

Intel i5 2500K OC'd to 4.5GHz
Asus GTX 560 Ti DirectCU II in SLI (possibly OC past factory OC)
2x4GB DDR3-1600 CL9 1.65V
1 SSD, 1 7200rpm HDD, 1 5400rpm HDD, no optical drive

Would a 650W be a comfortable minimum for this? I was considering some 550W PSUs but those typically don't have enough PCI-E connectors and I feel 550W won't be enough to handle the extra wattage required for overclocking.
Neutrino
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6700K Asus Z170I PRO GAMING Gigabyte GTX 1070 Mini ITX Corsair 16GB (2 x 8GB) DDR4-3200MHz 
Hard DriveCoolingCoolingOS
Crucial MX300 750GB Scythe Big Shuriken 2 rev. B Cryorig XT140 fan Windows 10 Pro 
KeyboardPowerCaseMouse
Topre Realforce 87u 55g Corsair SF450 Lazer3D LZ7 Logitech G303 
Mouse PadAudio
Steelseries 4HD Audio Technica ATH-M50 
  hide details  
Reply
Neutrino
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6700K Asus Z170I PRO GAMING Gigabyte GTX 1070 Mini ITX Corsair 16GB (2 x 8GB) DDR4-3200MHz 
Hard DriveCoolingCoolingOS
Crucial MX300 750GB Scythe Big Shuriken 2 rev. B Cryorig XT140 fan Windows 10 Pro 
KeyboardPowerCaseMouse
Topre Realforce 87u 55g Corsair SF450 Lazer3D LZ7 Logitech G303 
Mouse PadAudio
Steelseries 4HD Audio Technica ATH-M50 
  hide details  
Reply
post #2 of 13
650 will be more than enough, and also 550. I'd personally grab a quality 650 to give you the option of sli down the road.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 5GHz ASRock P67 Extreme4 GTX 580 8GB G.Skill Ripjaws X @ 1600 8-8-8-24 
Hard DriveMonitorPowerCase
64GB Crucial SSD/1 TB WD Caviar Black Asus VG236H 23" 3D Corsair 850 TX 800D 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 5GHz ASRock P67 Extreme4 GTX 580 8GB G.Skill Ripjaws X @ 1600 8-8-8-24 
Hard DriveMonitorPowerCase
64GB Crucial SSD/1 TB WD Caviar Black Asus VG236H 23" 3D Corsair 850 TX 800D 
  hide details  
Reply
post #3 of 13
Thread Starter 
The build is already including SLI though
Edited by Vowels - 3/17/11 at 5:06pm
Neutrino
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6700K Asus Z170I PRO GAMING Gigabyte GTX 1070 Mini ITX Corsair 16GB (2 x 8GB) DDR4-3200MHz 
Hard DriveCoolingCoolingOS
Crucial MX300 750GB Scythe Big Shuriken 2 rev. B Cryorig XT140 fan Windows 10 Pro 
KeyboardPowerCaseMouse
Topre Realforce 87u 55g Corsair SF450 Lazer3D LZ7 Logitech G303 
Mouse PadAudio
Steelseries 4HD Audio Technica ATH-M50 
  hide details  
Reply
Neutrino
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6700K Asus Z170I PRO GAMING Gigabyte GTX 1070 Mini ITX Corsair 16GB (2 x 8GB) DDR4-3200MHz 
Hard DriveCoolingCoolingOS
Crucial MX300 750GB Scythe Big Shuriken 2 rev. B Cryorig XT140 fan Windows 10 Pro 
KeyboardPowerCaseMouse
Topre Realforce 87u 55g Corsair SF450 Lazer3D LZ7 Logitech G303 
Mouse PadAudio
Steelseries 4HD Audio Technica ATH-M50 
  hide details  
Reply
post #4 of 13
According to this each card can draw up to ~150w each while benching, so factor in 300w for the GPUs leaves you with 350w on a 650w PSU.

It's sufficient.
Bye Bye 775
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k @ 4.5GHz ASUS P8P67 PRO MSI GTX 660 Ti Power Edition  2x4gb Ripjaws@1866MHz 
Hard DriveOptical DriveOSMonitor
840Pro 128 | 3xWD Vraptor | 1.5TB Green LG 6X Blu-ray /HD-DVD combo Win7 Ultimate 64bit 2 x U2311H 1920x1080 
KeyboardPowerCaseMouse
Logitech G710+ Corsair HX620 Corsair 600t Logitech G500 
  hide details  
Reply
Bye Bye 775
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k @ 4.5GHz ASUS P8P67 PRO MSI GTX 660 Ti Power Edition  2x4gb Ripjaws@1866MHz 
Hard DriveOptical DriveOSMonitor
840Pro 128 | 3xWD Vraptor | 1.5TB Green LG 6X Blu-ray /HD-DVD combo Win7 Ultimate 64bit 2 x U2311H 1920x1080 
KeyboardPowerCaseMouse
Logitech G710+ Corsair HX620 Corsair 600t Logitech G500 
  hide details  
Reply
post #5 of 13
I'm sorry, I misread. But, you can get away with a quality 550w. However, it may be a bit tight.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 5GHz ASRock P67 Extreme4 GTX 580 8GB G.Skill Ripjaws X @ 1600 8-8-8-24 
Hard DriveMonitorPowerCase
64GB Crucial SSD/1 TB WD Caviar Black Asus VG236H 23" 3D Corsair 850 TX 800D 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 5GHz ASRock P67 Extreme4 GTX 580 8GB G.Skill Ripjaws X @ 1600 8-8-8-24 
Hard DriveMonitorPowerCase
64GB Crucial SSD/1 TB WD Caviar Black Asus VG236H 23" 3D Corsair 850 TX 800D 
  hide details  
Reply
post #6 of 13
Thread Starter 
Hmmm I just read Guru3d's review of the DirectCU II and it puts it at 176W at full load. So about ~350W for SLI leaving me 200W - 300W depending on my choice of 550W or 650W PSU. How much wattage does a 2500K @ 4.5GHz pull?

Considering Kingwin Lazer Gold, Seasonic X, and Corsair AX at the moment.
Neutrino
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6700K Asus Z170I PRO GAMING Gigabyte GTX 1070 Mini ITX Corsair 16GB (2 x 8GB) DDR4-3200MHz 
Hard DriveCoolingCoolingOS
Crucial MX300 750GB Scythe Big Shuriken 2 rev. B Cryorig XT140 fan Windows 10 Pro 
KeyboardPowerCaseMouse
Topre Realforce 87u 55g Corsair SF450 Lazer3D LZ7 Logitech G303 
Mouse PadAudio
Steelseries 4HD Audio Technica ATH-M50 
  hide details  
Reply
Neutrino
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6700K Asus Z170I PRO GAMING Gigabyte GTX 1070 Mini ITX Corsair 16GB (2 x 8GB) DDR4-3200MHz 
Hard DriveCoolingCoolingOS
Crucial MX300 750GB Scythe Big Shuriken 2 rev. B Cryorig XT140 fan Windows 10 Pro 
KeyboardPowerCaseMouse
Topre Realforce 87u 55g Corsair SF450 Lazer3D LZ7 Logitech G303 
Mouse PadAudio
Steelseries 4HD Audio Technica ATH-M50 
  hide details  
Reply
post #7 of 13
SeaSonic X 650
NZXT Hale90 650W
Antec TP-650
XFX 650W (either the XXX or the Core version)
post #8 of 13
Quote:
Originally Posted by Vowels View Post
How much wattage does a 2500K @ 4.5GHz pull?
Depends on a lot of factors. Such as voltage, and temperature. A quick calculation gives me around no more than 127 W maximum. Others may confirm this.
post #9 of 13
Quote:
Originally Posted by Vowels View Post
Hmmm I just read Guru3d's review of the DirectCU II and it puts it at 176W at full load. So about ~350W for SLI leaving me 200W - 300W depending on my choice of 550W or 650W PSU. How much wattage does a 2500K @ 4.5GHz pull?

Considering Kingwin Lazer Gold, Seasonic X, and Corsair AX at the moment.
I believe the AX does not come in anything less than a 750, but the HX is a good performer also (just lacks full modularity). I'd go with the Seasonic.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 5GHz ASRock P67 Extreme4 GTX 580 8GB G.Skill Ripjaws X @ 1600 8-8-8-24 
Hard DriveMonitorPowerCase
64GB Crucial SSD/1 TB WD Caviar Black Asus VG236H 23" 3D Corsair 850 TX 800D 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 5GHz ASRock P67 Extreme4 GTX 580 8GB G.Skill Ripjaws X @ 1600 8-8-8-24 
Hard DriveMonitorPowerCase
64GB Crucial SSD/1 TB WD Caviar Black Asus VG236H 23" 3D Corsair 850 TX 800D 
  hide details  
Reply
post #10 of 13
550w would be minimum, and 650w is spot on recommended.

I wouldn't get the HX650, it's pretty average. What's your budget?
Rig
(9 items)
 
  
CPUMotherboardGraphicsRAM
5820k ga-x99-sli gigabyte 7970 wf 16gb 4x4 lpx 
Hard DriveCoolingPowerCase
samsung 830 128gb ven x/gt ap-15 evga g2 650w corsair 450d 
Audio
jbl lsr305 
  hide details  
Reply
Rig
(9 items)
 
  
CPUMotherboardGraphicsRAM
5820k ga-x99-sli gigabyte 7970 wf 16gb 4x4 lpx 
Hard DriveCoolingPowerCase
samsung 830 128gb ven x/gt ap-15 evga g2 650w corsair 450d 
Audio
jbl lsr305 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › 650W minimum for GTX 560 SLI + OC'd 2500K?