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Is my PSU enough for a GTX460?

post #1 of 8
Thread Starter 
Hello all,

I have had a GTX460 for about two weeks, and I noticed that the performance was lagging. I have a Ultra LSP-650 650 watt power supply, and today I had the idea that maybe the 12v rail wasn't providing enough amperage for the card and system. Could this be true? Or is my power supply unit enough to run this fermi?
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1TB Seagate Barracuda 7200RPM 32MB Cache HDD ASUS 24X DVDRW SATA Windows 7 Home Premium x64 Acer AL1916 
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Gaming Rig
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C2D e8400 E0 ASUS P5WDH Deluxe GALAXY GTX 460 768MB 4GB Kingston Hyper-X T1 1066 DDR2 
Hard DriveOptical DriveOSMonitor
1TB Seagate Barracuda 7200RPM 32MB Cache HDD ASUS 24X DVDRW SATA Windows 7 Home Premium x64 Acer AL1916 
PowerCaseMouse
ULTRA LSP 650w; 38A +12V Raidmax Tornado 238-B Microsoft Wireless Mobile Mouse 3000 
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post #2 of 8
It'll be fine, but I dont know if it'll support overclocks or when your stressing your system.
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F-U-B-A-R
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CoolingCoolingCoolingCooling
Koolance CPU-380I BitsPower Fittings PrimoChill Advanced LRT Koolance R9 290 Waterblock 
CoolingCoolingCoolingCooling
Koolance R9 290 Waterblock XSPC Dual 5.25'' Bay Laing D5 Lamptron FC5-V2 AlphaCool NexXxos ST30 240mm 
CoolingCoolingCoolingCooling
AlphaCool NexXxos ST30 120mm AlphaCool NexXxos XT45 180mm x3 NoiseBlocker E-Loop B12-3 Silverstone Air Penetrator AP181 
CoolingOSMonitorKeyboard
Alphacool VPP655 Windows 7 Pro 64bit Dell Ultrasharp U2711 Ducky Shine 2 Red Cherry MX 
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Klipsch ProMedia 4.1's 
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Intel 3570k Asrock Z77E-ITX EVGA GTX 670 Samsung DDR3 4gb x2 
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Crucial MSata 256gb Aqua Computer Cuplex Kryos HF Aqua Computer AquagraFX Alphacool NexXxoS ST30 240mm 
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Swiftech MCP655 Gentle Typoon's AP-13 x2 Koolance Threaded Acetal Pump Base W/ Reservoir Bitspower 3/8-5/8 Matte Black Fittings 
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post #3 of 8
It will be ok, but the Ultra LSP units aren't the best around. But it will cope with dual 460s, just.
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post #4 of 8
Bah, the Ultra I used to have popped a fuse when I was watching a Splinter Cell trailer.

Anyway, I'm running a strong 550W system fine, so you should be good to go, assuming Ultra isn't greatly exaggerating the PSU's specs.
    
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post #5 of 8
650w should be enough to SLI 460s. How old is that PSU though?
post #6 of 8
+1 650W is plenty. I SLI 460's on a 550W just fine.
     
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CPUMotherboardGraphicsRAM
i7-3930k @ 4.?GHz Rampage IV Extreme 2x 8800GT 32GB Dominator GT 2133 CL9 
Hard DriveCoolingOSMonitor
2xX25-E Raid 0, 1xC300 128GB, + Mechanicals DT 5Noz, EK full cover GPU blocks, EK full cove... RHEL 5.5 WS Dell U3011 + 2005WFP Portrait 
PowerCaseMouse
AX1200 CaseLabs TX10-D + Pedestal Razer DeathAdder 
CPUMotherboardGraphicsRAM
3930K@4.8 Rampage IV Extreme GTX580 3GB Tri SLI, GTX460 FizzyX 16GB Samsung SuperOverclockingTiny DDR3 
Hard DriveCoolingOSMonitor
Crucial M4 DT 5Noz, Koolance Full Cover GPU blocks, EK ful... Win 7 64 bit Pro Dell U3011 + 2005WFP 
PowerCaseMouseMouse Pad
EVGA NEX1500 CaseLabs TX10-D + Pedestal Logitech G5 Razer Goliathus 
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Asus Essence One 
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post #7 of 8
Thread Starter 
Quote:
Originally Posted by Booty Warrior View Post
650w should be enough to SLI 460s. How old is that PSU though?
A month old.
Gaming Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
C2D e8400 E0 ASUS P5WDH Deluxe GALAXY GTX 460 768MB 4GB Kingston Hyper-X T1 1066 DDR2 
Hard DriveOptical DriveOSMonitor
1TB Seagate Barracuda 7200RPM 32MB Cache HDD ASUS 24X DVDRW SATA Windows 7 Home Premium x64 Acer AL1916 
PowerCaseMouse
ULTRA LSP 650w; 38A +12V Raidmax Tornado 238-B Microsoft Wireless Mobile Mouse 3000 
  hide details  
Reply
Gaming Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
C2D e8400 E0 ASUS P5WDH Deluxe GALAXY GTX 460 768MB 4GB Kingston Hyper-X T1 1066 DDR2 
Hard DriveOptical DriveOSMonitor
1TB Seagate Barracuda 7200RPM 32MB Cache HDD ASUS 24X DVDRW SATA Windows 7 Home Premium x64 Acer AL1916 
PowerCaseMouse
ULTRA LSP 650w; 38A +12V Raidmax Tornado 238-B Microsoft Wireless Mobile Mouse 3000 
  hide details  
Reply
post #8 of 8
What do you mean performance was lagging? Maybe the card isn't as powerful as you were expecting?
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OCZ Vertex 2 120GB Lite-On DVD Burner Windows 7 Home x64 ASUS VH232H 23" 1080p 
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Razer Goliathus 
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Lucy
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Hard DriveOptical DriveOSMonitor
OCZ Vertex 2 120GB Lite-On DVD Burner Windows 7 Home x64 ASUS VH232H 23" 1080p 
KeyboardPowerCaseMouse
Logitech Illuminated OCZ Fatal1ty 550W Xigmatek Utgard Logitech MX 518 
Mouse Pad
Razer Goliathus 
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