Overclock.net › Forums › Graphics Cards › NVIDIA › GTX 670 SLI
New Posts  All Forums:Forum Nav:

GTX 670 SLI

post #1 of 15
Thread Starter 
Hello,

I am not really into power suppliers, so I'll just ask here:

my rig is the following:

Intel Core i5-2500K S1155 Box
Gigabyte GTX 670 Windforce X3
ASUS P8P67 LE (Rev 3.0)
2x1TB Samsung SpinPoint F3 HD103Sj 7200 U/min
3TB FANTEC DB-ALU3e 7200 U/min
128GB Crucial M4 MLC SSD
DDR3 8GB KIT (2x4GB) G.Skill PC3-10666 CL9
LG BH10LS30
Corsair TX650 V2 80+
Sharkoon Tauron
Mugen 2 Cooler
Windows 8

As I have a 120hz Monitor I'd like to get some more fps now so I thought about adding another GTX 670. ( I know I need a new motherboard)

Now I know 650w is on the edge, but I don't know if the 12v? things or whatever (again I don't know anything about power suppliers) can handle 2x GTX 670. Do I need a new PSU, not because of 650w but because of the rails or is it capable of running 2?

Thanks for an helpful answer,

Sincerely,

rival
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
post #2 of 15
650W is plenty for that setup. Neither the 2500k or the GTX 670's are very power hungry even when overclocked. And yes the TX650 has more then enough amps on the 12V rail. The only issue if I recall correctly is that the TX 650W only has 2 x 6+2-Pin connectors and using adapters is never ideal.
Edited by Bit_reaper - 9/9/13 at 3:39am
    
CPUMotherboardGraphicsRAM
i7 920 OC 4.0 GHz 1.35v HT on Asus P6T 1366 SLI Gigabyte GTX 970 OCZ 12GB DDR3 GOLD/Platinum mix 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F1 1TB Western digital 300GB Western digital Caviar Blue 1TB Samsung 840 EVO 250Gb 
Optical DriveCoolingOSMonitor
generic LG DVD WC'd , Supreme LT, NexXxoS Xtreme III 360, Phob... Windows 7 x64 Samsung 27" LED S27A550B 
MonitorMonitorKeyboardPower
ACER 23" x233H Dell U3415W Logitech G11 Chieftec 850W 
CaseMouseMouse PadAudio
Phanteks enthoo luxe Razer deathAdder respawn steelseries Qck Yamaha HTR-6130 AV Receiver 
AudioAudio
Yamaha NS-50B floor tower speakers miditech Audiolink II stereo sound card 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 920 OC 4.0 GHz 1.35v HT on Asus P6T 1366 SLI Gigabyte GTX 970 OCZ 12GB DDR3 GOLD/Platinum mix 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F1 1TB Western digital 300GB Western digital Caviar Blue 1TB Samsung 840 EVO 250Gb 
Optical DriveCoolingOSMonitor
generic LG DVD WC'd , Supreme LT, NexXxoS Xtreme III 360, Phob... Windows 7 x64 Samsung 27" LED S27A550B 
MonitorMonitorKeyboardPower
ACER 23" x233H Dell U3415W Logitech G11 Chieftec 850W 
CaseMouseMouse PadAudio
Phanteks enthoo luxe Razer deathAdder respawn steelseries Qck Yamaha HTR-6130 AV Receiver 
AudioAudio
Yamaha NS-50B floor tower speakers miditech Audiolink II stereo sound card 
  hide details  
Reply
post #3 of 15
Thread Starter 
Thanks for your answer. Could you tell me what Pin connectors I need to buy?( I can also make a photo)

Also I thought about buying the Asus P8Z68-V Pro/Gen3 for SLI. That one shoud be okay running those 2 on 8x/8x right?
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
post #4 of 15
You'll need a PSU that provides you with 4 PCIE 6+2 connectors, because that Windforce card comes with a 6 pin and one 8 pin connectors...I assume you want to buy another one of those if you find it.

From hardwarecanucks (GTX 670 windforce):



You need 4 of those (via Overclock.net):



Yes a 8x/8x mobo will be fine...
post #5 of 15
Thread Starter 
Okay thanks.

Just bought myself 2x Gigabyte GTX 670 Windforce 4GB New for unbelievable 480€ and Asus P8Z68-V Pro/Gen3 for 96€.

The pin adapters are already included in the package of the graphic cards, so I hope everything will go right smile.gif
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
post #6 of 15
Congrats on the 4GB cards!

To be honest, I find that a 650 watts is really close on a GTX670 setup, especially if you overclock your CPU....you'll be sitting at 430 watts avg...on a 650...that's a little on the high side...

From the GURU OF 3D (for 670 in SLI):
Quote:
Measured power consumption two cards in SLI x2

System in IDLE = 160W
System Wattage with GPUs in FULL Stress = 433W
Difference (GPU load) = 273W
Add average IDLE wattage ~20W
Subjective obtained GPU power consumption = ~ 293 Watts

Link:

http://www.guru3d.com/articles_pages/geforce_gtx_670_2_and_3way_sli_review,4.html

So yes it will work, I guess you'll be using MOLEX adapters included in the box...

But your next purchase should be a nice power supply!
Edited by delavan - 9/9/13 at 5:12am
post #7 of 15
Thread Starter 
As mine has Bronze efficiency doesn't my 650W power supply get 520W? So what's the problem about 433W or 480W overclocked?
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
post #8 of 15
Oh, problem being that your PSU's fan will spin faster, usually it's proportional to the load. Also, the closer from the "ceiling" you keep your PSU, the shorter it's life expectancy...than being said no sweat...

I'd grab a 850 watts (Corsair Seasonic or the like) when you get the chance, with 4 X (6+2 pcie-e connectors).

I'm also looking into 670's, as they are nicely priced right now, and a little faster than the 760s...

Enjoy!
post #9 of 15
Thread Starter 
Quote:
Originally Posted by delavan View Post

I'd grab a 850 watts (Corsair Seasonic or the like) when you get the chance, with 4 X (6+2 pcie-e connectors).

yeah.. but I don't want to spend 140€ for a PSU, which I don't necessarily need
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
Ryzen Build
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3,9 GHz MSI B350 Tomahawk MSI RX 480 Gaming X @ 1,4 GHz Kingston HyperX 16GB DDR4-2666 
Hard DriveOptical DriveCoolingOS
Samsung 960 Evo 1TB LG BH16NS55 be quiet! Silent Loop 240mm + 2x be quiet! Pure... Windows 10 Pro 64bit 
MonitorMonitorMonitorCase
Acer XF270HUA 1440p IPS 144 Hz Dell U2515H Dell U2515H Nanoxia Deep Silence 1 Rev. B 
MouseAudio
Lioncast LM30  Kingston HyperX Cloud II 
  hide details  
Reply
post #10 of 15
Yup, I see that!

You came for advice! Your rig will work no problem...enjoy the rig and post benchmarks!

I was thinking something like that (114 pounds including VAT).

http://www.overclockers.co.uk/showproduct.php?prodid=CA-054-CS

The power supply, although not a "sexy" piece of kit, is one of the foundation of a good, stable and long-lasting gaming rig...my advice is to start shopping and grab a new PSU in a few months if you get the chance...
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › GTX 670 SLI