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GTX 460 SE SLI PSU requirements.

post #1 of 20
Thread Starter 
I'm building a computer, I'm thinking of making it SLI. I'm going to be using GTX 460 SE (i know SE but I already have one from my last build). I'm probably not going to overclock on this rig just yet. I'm curious would a 750 be enough?
CPU: Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost)
http://www.newegg.com/Product/Produc...-072-_-Product
MOBO:ASUS P8P67 PRO
http://www.newegg.com/Product/Produc...-703-_-Product
CPU COOLER: Noctua NH-D14
http://www.newegg.com/Product/Produc...018&Tpk=NH-D14
CASE:COOLER MASTER HAF X nVidia Edition
http://www.newegg.com/Product/Produc...-236-_-Product
RAM: G.SKILL Ripjaws X Series 8GB (2 x 4GB)
http://www.newegg.com/Product/Produc...-431-_-Product
PSU: CORSAIR HX Series CMPSU-750HX
http://www.newegg.com/Product/Produc...82E16817139010
HDD: Western Digital Caviar Black 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s
http://www.newegg.com/Product/Produc...82E16822136795
GPU: GTX 460 SE x2
http://www.tigerdirect.com/applicati...278&CatId=3669
Possibly going to get an SSD as well.
post #2 of 20
These cards take some 200W a piece full load furmark, maybe less on regular games, so a 650W should be enough without OCing. 750W is good for the peace of mind and if you want to OC down the road.
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post #3 of 20
A solid 550w PSU will be more than enough. The 460 SE doesn't take much power at all.

Quote:
Originally Posted by dragosmp View Post
These cards take some 200W a piece full load furmark, maybe less on regular games, so a 650W should be enough without OCing. 750W is good for the peace of mind and if you want to OC down the road.
Ummm, no they don't. The 460SE draws maybe 120-130w under furmark. They're a VERY light power card. The regular 460 only draws around 150-170w full load.
Edited by pioneerisloud - 5/18/11 at 11:41pm
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post #4 of 20
Thread Starter 
Hmm, okay, thanks for the input. Really appreciate it.
post #5 of 20
Don't make my same mistake. Well, not really a mistake but I wanted to go on the cheaper side and get an SE...don't get me wrong, it performs very well and it's overclocked by a good 30% now with stock cooling. If you're looking for more juice then just get a single card. Get yourself either a GTX560ti, the newly released 560 or a 6950 2GB.
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post #6 of 20
Quote:
Originally Posted by Toxin View Post
I'm building a computer, I'm thinking of making it SLI. I'm going to be using GTX 460 SE (i know SE but I already have one from my last build). I'm probably not going to overclock on this rig just yet. I'm curious would a 750 be enough?
CPU: Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost)
http://www.newegg.com/Product/Produc...-072-_-Product
MOBO:ASUS P8P67 PRO
http://www.newegg.com/Product/Produc...-703-_-Product
CPU COOLER: Noctua NH-D14
http://www.newegg.com/Product/Produc...018&Tpk=NH-D14
CASE:COOLER MASTER HAF X nVidia Edition
http://www.newegg.com/Product/Produc...-236-_-Product
RAM: G.SKILL Ripjaws X Series 8GB (2 x 4GB)
http://www.newegg.com/Product/Produc...-431-_-Product
PSU: CORSAIR HX Series CMPSU-750HX
http://www.newegg.com/Product/Produc...82E16817139010
HDD: Western Digital Caviar Black 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s
http://www.newegg.com/Product/Produc...82E16822136795
GPU: GTX 460 SE x2
http://www.tigerdirect.com/applicati...278&CatId=3669
Possibly going to get an SSD as well.
To power a system with two GTX 460s in it, any quality 550-650W power supply will have more than enough power. I mean, NVIDIA recommends a 450W power supply to power a system with one GTX 460 in it, so that means that any quality 400W power supply would be enough. So that's why any quality 550W power supply is a good fit.

So for peace of mind in regards to upgrading to better cards (or to the GTX 580 or something), I recommend a quality 650W power supply. I mean, a quality 750W is just major overkill here.

I'll post again in a few minutes with some of my recommendations.
It's a computer!
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It's a computer!
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i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #7 of 20
Thread Starter 
I was thinking about it but I decided getting a 460 SE would be a huge upgrade over my last GPU for this PC while I get the money for another rig. Then just take it out and go SLI for my new one.
post #8 of 20
Quote:
Originally Posted by Toxin View Post
I was thinking about it but I decided getting a 460 SE would be a huge upgrade over my last GPU for this PC while I get the money for another rig. Then just take it out and go SLI for my new one.
You could also get a MUCH stronger single card solution with your new build, and use the 460SE as a PhysX / Folding card too.

A good 650w PSU will be more than sufficient, even if you went with a 580 plus your current 460SE.
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Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
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NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
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Dell 2007FP Cheap Toshiba (R.I.P. Ducky) PC Power & Cooling Silencer MKIII 950w Cheap Garbage (free) 
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CPUMotherboardGraphicsRAM
Intel Core i5 3330 Asus H61 MSI GTX 750Ti Low Profile 2x4GB Hynix DDR3-1333 
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Windows 8.1 + Steam Big Picture / Plex HT 50" Insignia LED 1080p Logitech Rosewill Green 530w 
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Junkyard
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NAStradamous
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HTPC01
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Intel i5 2320 @ 3.1GHz MSI B75MA-E33 HIS HD7970 3GB @ 1050 / 1700, 1.17v Patriot 2x4GB DDR3-1066 
Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
CoolingOSMonitorMonitor
NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
MonitorKeyboardPowerCase
Dell 2007FP Cheap Toshiba (R.I.P. Ducky) PC Power & Cooling Silencer MKIII 950w Cheap Garbage (free) 
MouseAudio
Logitech G602 Yardsale Special 
CPUMotherboardGraphicsRAM
Intel Core i5 3330 Asus H61 MSI GTX 750Ti Low Profile 2x4GB Hynix DDR3-1333 
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60GB Kingston SSD 1TB Seagate Samsung DVDRW CoolerMaster Gemin II 
OSMonitorKeyboardPower
Windows 8.1 + Steam Big Picture / Plex HT 50" Insignia LED 1080p Logitech Rosewill Green 530w 
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Silverstone HTPC Logitech Pioneer 2.0 tower speakers + 135w RMS Rosewill MCE Remote 
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post #9 of 20
Quote:
Originally Posted by Toxin View Post
I was thinking about it but I decided getting a 460 SE would be a huge upgrade over my last GPU for this PC while I get the money for another rig. Then just take it out and go SLI for my new one.
Before I post my suggestions, I want to show you this:

http://www.guru3d.com/article/geforc...-sli-review/15

They were able to pull 433W from the wall outlet with two GTX 460s in SLi stressed to the fullest. If I assume 85% efficiency, then that would mean the system pulled about 368W from the power supply. If I add the recommended 150W to this number, then I end up with about 518W of power being pulled from the power supply under the highest loads.

So this is why any quality 550W power supply is absolutely enough.
It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #10 of 20
Thread Starter 
Thanks a lot on that, it'll save me a bit of money. The PSU recommendations page would be a good place to find one? If you have any recommendations I'm more than content on listening.
Edited by Toxin - 5/18/11 at 11:58pm
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