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gtx 780 sli - PSU cable help! - Page 3

post #21 of 36
Quote:
Originally Posted by akiles333 View Post


Yep

 

Then again, your PSU has all the cabling you need because as you said, the other 2 you have are 2 x 6+2-pin connectors. It's unfortunate that your PSU only came with 2 x 8-pin PCI-E connectors and 2 x 6+2-pin connectors instead of the 6 x 6+2-pin PCI-E connectors that it should have come with, but at least you have all of the connectors and cabling that you need.

 

Therefore, here's how you do it:

 

  1. Take one 8-pin plug and plug it in to one of the 8-pin connectors on one of your 780s.
  2. Take the 6-pin portion of one of the 6+2-pin connectors and plug it in to the 6-pin connector on one of your 780s
  3. Do the same thing again for the other 2 connectors on your 780s

 

That's all you need to do and then you'll be up and running.

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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 
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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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post #22 of 36
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

Then again, your PSU has all the cabling you need because as you said, the other 2 you have are 2 x 6+2-pin connectors. It's unfortunate that your PSU only came with 2 x 8-pin PCI-E connectors and 2 x 6+2-pin connectors instead of the 6 x 6+2-pin PCI-E connectors that it should have come with, but at least you have all of the connectors and cabling that you need.

Therefore, here's how you do it:
  1. Take one 8-pin plug and plug it in to one of the 8-pin connectors on one of your 780s.
  2. Take the 6-pin portion of one of the 6+2-pin connectors and plug it in to the 6-pin connector on one of your 780s
  3. Do the same thing again for the other 2 connectors on your 780s

That's all you need to do and then you'll be up and running.
I'm not stupid.... When i used one of those cables with my 680, it didn't work.. So i thought that it didn't supply enough power. I just wanted to know if that was the case or not.
post #23 of 36
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

Then again, your PSU has all the cabling you need because as you said, the other 2 you have are 2 x 6+2-pin connectors. It's unfortunate that your PSU only came with 2 x 8-pin PCI-E connectors and 2 x 6+2-pin connectors instead of the 6 x 6+2-pin PCI-E connectors that it should have come with, but at least you have all of the connectors and cabling that you need.

Therefore, here's how you do it:
  1. Take one 8-pin plug and plug it in to one of the 8-pin connectors on one of your 780s.
  2. Take the 6-pin portion of one of the 6+2-pin connectors and plug it in to the 6-pin connector on one of your 780s
  3. Do the same thing again for the other 2 connectors on your 780s

That's all you need to do and then you'll be up and running.
I'm not stupid.... When i used one of those cables with my 680, it didn't work.. So i thought that it didn't supply enough power. I just wanted to know if that was the case or not.
post #24 of 36
Quote:
Originally Posted by akiles333 View Post

I'm not stupid.... When i used one of those cables with my 680, it didn't work.. So i thought that it didn't supply enough power. I just wanted to know if that was the case or not.

I've read this thread twice, and maybe I am the stupid one. LOL. I still can't figure out if your statement means you plugged just one of the 8-pin cables into your 680 and it didn't work, or if you plugged a 8-8 pin cable, AND a 6+2 cable into the 680 and it didn't work. Some of those 8 pin cables that come with the AX860 might be EPS +12V ATX supplemental power cables - the pinout on the PSU side is the same, but the pinout on the motherboard end is slightly different than a PCIE 6+2 when bound together as an 8 pin. Could be you used the wrong one?

I'm surprised the AX860 didn't come with the proper four or six 6+2 cables. My AX1200 came with (6) 6+2 cables and I assumed the AX860 would come with (4) of them for 2 card SLI that would work with either 8-pin or 6-pin (or a combo card that has 8 and 6 pin PCIe power).

Who knows, LOL.

Greg
post #25 of 36
Quote:
Originally Posted by akiles333 View Post


I'm not stupid.... When i used one of those cables with my 680, it didn't work.. So i thought that it didn't supply enough power. I just wanted to know if that was the case or not.

 

I didn't say that you're stupid, nor did I even think it. I should be insulted that you think I'm saying or thinking that you're stupid. Read through your thread and read through the other and you tell me what impression you're giving us concerning what you have tried and have done so far, or really just what you're trying to tell us or ask us.

 

So far, it seems to me that we are all getting the impression that you don't know what you're doing. This is just a simple misunderstanding because all we can do is go by what you've typed.

 

Was the cable you used on your GTX 680 specifically labeled "PCI-E"?

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(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 
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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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post #26 of 36
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

I didn't say that you're stupid, nor did I even think it. I should be insulted that you think I'm saying or thinking that you're stupid. Read through your thread and read through the other and you tell me what impression you're giving us concerning what you have tried and have done so far, or really just what you're trying to tell us or ask us.

So far, it seems to me that we are all getting the impression that you don't know what you're doing. This is just a simple misunderstanding because all we can do is go by what you've typed.

Was the cable you used on your GTX 680 specifically labeled "PCI-E"?
yes, it says PCI-E.
post #27 of 36
Thread Starter 
Quote:
Originally Posted by hammong View Post

I've read this thread twice, and maybe I am the stupid one. LOL. I still can't figure out if your statement means you plugged just one of the 8-pin cables into your 680 and it didn't work, or if you plugged a 8-8 pin cable, AND a 6+2 cable into the 680 and it didn't work. Some of those 8 pin cables that come with the AX860 might be EPS +12V ATX supplemental power cables - the pinout on the PSU side is the same, but the pinout on the motherboard end is slightly different than a PCIE 6+2 when bound together as an 8 pin. Could be you used the wrong one?

I'm surprised the AX860 didn't come with the proper four or six 6+2 cables. My AX1200 came with (6) 6+2 cables and I assumed the AX860 would come with (4) of them for 2 card SLI that would work with either 8-pin or 6-pin (or a combo card that has 8 and 6 pin PCIe power).

Who knows, LOL.

Greg
look at the picture in the first post. I plugged the single 8-pin into the psu and then the to other connectors on the other side of the wire into my 680. just tried it with a 780, and it still doesn't work.. did i maybe get a faulty cable?
post #28 of 36
Quote:
Originally Posted by akiles333 View Post

look at the picture in the first post. I plugged the single 8-pin into the psu and then the to other connectors on the other side of the wire into my 680. just tried it with a 780, and it still doesn't work.. did i maybe get a faulty cable?

Are you talking about that hand-drawn 8 pin splitter cable on the first post? No, you can't use that to connect to BOTH of the PCie connectors on your board and expect it to work. Your video card has two connectors on it for a reason - a single connector can't supply the required current, and consequently going two-into-one and plugging the one into the PSU won't work for the same reason.

I wouldn't mind seeing a digital photo of that splitter cable, specifically the ends to see what gender they are. I have seen a few 8 pin EPS 12V splitters out there, to let you run a motherboard that requires dual 8 pin EPS connections from a PSU with a single 8 pin EPS output, but I've never seen a 8 pin to two-8 pin PCIe splitter before.

Greg
post #29 of 36
Thread Starter 
Quote:
Originally Posted by hammong View Post

Are you talking about that hand-drawn 8 pin splitter cable on the first post? No, you can't use that to connect to BOTH of the PCie connectors on your board and expect it to work. Your video card has two connectors on it for a reason - a single connector can't supply the required current, and consequently going two-into-one and plugging the one into the PSU won't work for the same reason.

I wouldn't mind seeing a digital photo of that splitter cable, specifically the ends to see what gender they are. I have seen a few 8 pin EPS 12V splitters out there, to let you run a motherboard that requires dual 8 pin EPS connections from a PSU with a single 8 pin EPS output, but I've never seen a 8 pin to two-8 pin PCIe splitter before.

Greg
I got it working with the splitter pictured in the first post. one cable per card.
post #30 of 36

It's not a splitter. It's a modular cable that supplies two 8-pin PCI-E connectors.

 

As long as all of the connectors on the video cards are plugged in, the video cards should work. If any of the connectors on the video cards are not plugged in, then the video cards shouldn't be expected to work.

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... 
  hide details  
Reply
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