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[SOLVED] Little confused with my Corsair AX750 for an SLI setup

post #1 of 18
Thread Starter 
Solved!
Was a wrong CPU connection (although did the same job):
http://www.overclock.net/t/1473013/little-confused-with-my-corsair-ax750-for-an-sli-setup/10#post_21924482

Thanks to all those helped - leaving this up fro reference for anyone else! thumb.gif



Hey OCN,

So I recently purchased a second GTX680, and it should be with me in the next couple of days.
Here's my problem - power supply to the second one.

I actually googl'ed before posting this, but it seems that my PSU is a different model.
http://forum.corsair.com/v3/showthread.php?t=102301

THIS is not the case with my PSU - seems a different revision.

Here's my pics - how on earth do I SLI it with power?
My guess is 8pin + 2x MOLEX

-The card I currently have inside is a MSI GTX680:
http://www.msi.com/product/vga/N680GTX_Twin_Frozr_2GD5OC_.html
http://www.vortez.net/articles_pages/msi_gtx680_twin_frozr_review,6.html

-Card that's incoming is a EVGA GTX680 SC:
https://www.evga.com/products/pdf/02G-P4-2683.pdf
http://www.vortez.net/articles_pages/evga_gtx680_superclocked_signature_review,6.html

My personal pics of the AX750 + MSIGTX680 (you'll be able to see the cables I have left and space I have on the PSU):
Just as an FYI: the 2x 12pins are: one for the CPU, the other for the MSI GTX680
At the end of the PSU - it has the 24pin +10pin for the motherboard.










Note: Just a quick realisation - could I use the 8pin on the PSU for the CPU? If so then I'll picard facepalm myself.

Any help is appreciated - thanks!
Edited by Totally Dubbed - 3/10/14 at 9:28am
post #2 of 18

I'm confused. What's the problem? This PSU has enough PCI-E connectors for this. You have 4 x 6+2-pin connectors.

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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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 #3 of 18
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

I'm confused. What's the problem? This PSU has enough PCI-E connectors for this. You have 4 x 6+2-pin connectors.

I'm confused too lol

OK here's what my PSU connected looks like right now:

Edited by Totally Dubbed - 3/10/14 at 8:12am
post #4 of 18
Quote:
Originally Posted by Totally Dubbed View Post


I'm confused too lol

OK here's what my PSU connected looks like right now:

 

I am still confused. What's the problem that you're having? This PSU comes with 4 x 6+2-pin PCI-E connectors, so that's what you'll use. It really is just as simple and as easy as that. Or, did you misplace them? I mean, if you still have these cables, then you won't need Molex to PCI-E adapters.

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... 
  hide details  
Reply
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... 
  hide details  
Reply
post #5 of 18
that 8pin in your hand in this pic IS for the cpu. that's what you should be using right now. the cable to the left of it in the same pic is another pci-e cable for graphics cards.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 4770K @ 4.7ghz Gigabyte Z87X-UD4H EVGA GTX 980TI ACX 2.0  8GB G.Skill Trident X 2400 mhz 
Hard DriveHard DriveHard DriveCooling
Samsung 830 SSD 128GB 3TB Toshiba  3TB Toshiba Custom Water 
OSMonitorPowerCase
Window 7 Ultimate 64 bit HP 23xi Corsair HX750i Phanteks Enthoo Luxe 
Mouse
Logitech G600 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 4770K @ 4.7ghz Gigabyte Z87X-UD4H EVGA GTX 980TI ACX 2.0  8GB G.Skill Trident X 2400 mhz 
Hard DriveHard DriveHard DriveCooling
Samsung 830 SSD 128GB 3TB Toshiba  3TB Toshiba Custom Water 
OSMonitorPowerCase
Window 7 Ultimate 64 bit HP 23xi Corsair HX750i Phanteks Enthoo Luxe 
Mouse
Logitech G600 
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post #6 of 18

Yeah they're all labeled - or at least they SHOULD be. Corsair made this pretty straight forward. Plus, I'm sure everything is explained in the manual.

 

Do not plug the wrong ends into the PSU - if they even fit.

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... 
  hide details  
Reply
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... 
  hide details  
Reply
post #7 of 18
Thread Starter 
Quote:
Originally Posted by PureBlackFire View Post

that 8pin in your hand in this pic IS for the cpu. that's what you should be using right now. the cable to the left of it in the same pic is another pci-e cable for graphics cards.

Quote:
Originally Posted by TwoCables View Post

Yeah they're all labeled - or at least they SHOULD be. Corsair made this pretty straight forward. Plus, I'm sure everything is explained in the manual.

Do not plug the wrong ends into the PSU - if they even fit.

They SHOULD be but aren't.
I just used the connection that "worked" for me.
The cable I have in the CPU right now is a THICK wire - REALLY thick.
Maybe as thick as its owner tongue.gif?

Right let me see what I can do - could be a simple CPU plug thing.
Thus - the cable I have in there right now (taking up my GPU slot) could be the wrong wire, when another wire (that does the same job, but takes another slot on my PSU) will work - as gracefully pointed out.

+rep btw to all the posts.
post #8 of 18


post #9 of 18
Thread Starter 
Quote:
Originally Posted by ZephyrBit View Post




hahah "clean me please" - yeaaaaaaaahhhh I willlll biggrin.gif
+rep
post #10 of 18
And to further clarify things, both the slots on the psu you have circled in this pic in green and red are for all the pci-express connections. the 8 pin slot next to it is for the cpu connection and it looks like you've figured out the motherboard main power connection just fine. the remainder of the bottom row of connections is for sata/molex peripherals. as far as I can tell this psu has the same connector layout as the seasonic X760. you can use the seasonic as a reference because that psu is clearly labelled what goes where.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 4770K @ 4.7ghz Gigabyte Z87X-UD4H EVGA GTX 980TI ACX 2.0  8GB G.Skill Trident X 2400 mhz 
Hard DriveHard DriveHard DriveCooling
Samsung 830 SSD 128GB 3TB Toshiba  3TB Toshiba Custom Water 
OSMonitorPowerCase
Window 7 Ultimate 64 bit HP 23xi Corsair HX750i Phanteks Enthoo Luxe 
Mouse
Logitech G600 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 4770K @ 4.7ghz Gigabyte Z87X-UD4H EVGA GTX 980TI ACX 2.0  8GB G.Skill Trident X 2400 mhz 
Hard DriveHard DriveHard DriveCooling
Samsung 830 SSD 128GB 3TB Toshiba  3TB Toshiba Custom Water 
OSMonitorPowerCase
Window 7 Ultimate 64 bit HP 23xi Corsair HX750i Phanteks Enthoo Luxe 
Mouse
Logitech G600 
  hide details  
Reply
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