Bitcoin Forum
May 11, 2024, 07:42:44 PM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
   Home   Help Search Login Register More  
Bitcoin Forum > Other > Beginners & Help > Dedicated PSU for GPUs?
Pages: [1]
« previous topic next topic »
  Print  
Author Topic: Dedicated PSU for GPUs?  (Read 1504 times)
polymorpher (OP)
Newbie
*
Offline Offline

Activity: 19
Merit: 0


View Profile
July 23, 2011, 02:06:27 PM
 #1
My PSU refuses to provide power to GPUs if 24pin and 8pin cable are not connected to motherboard. Is there anyway to trick the PSU so I could have a dedicated PSU for GPUs?
"Bitcoin: the cutting edge of begging technology." -- Giraffe.BTC
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
1715456564
Hero Member
*
Offline Offline

Posts: 1715456564

View Profile Personal Message (Offline)

Ignore
1715456564
1715456564
Reply with quote  #2
1715456564
Report to moderator
1715456564
Hero Member
*
Offline Offline

Posts: 1715456564

View Profile Personal Message (Offline)

Ignore
1715456564
1715456564
Reply with quote  #2
1715456564
Report to moderator
Xephan
Newbie
*
Offline Offline

Activity: 42
Merit: 0


View Profile
July 23, 2011, 02:16:16 PM
 #2
Quote from: polymorpher on July 23, 2011, 02:06:27 PM
My PSU refuses to provide power to GPUs if 24pin and 8pin cable are not connected to motherboard. Is there anyway to trick the PSU so I could have a dedicated PSU for GPUs?

ATX PSU are turned on when Pin 14 on the 24pin connector is pulled to ground. Pin 14 is usually wired with a green wire. So the simplest way to make this work, you just need to use a wire or something to connect that to any ground pin (black wire). A better way is to connect it to your main PSU so that it will turn on/off accordingly as well.
polymorpher (OP)
Newbie
*
Offline Offline

Activity: 19
Merit: 0


View Profile
July 23, 2011, 02:45:09 PM
 #3
Quote from: Xephan on July 23, 2011, 02:16:16 PM
Quote from: polymorpher on July 23, 2011, 02:06:27 PM
My PSU refuses to provide power to GPUs if 24pin and 8pin cable are not connected to motherboard. Is there anyway to trick the PSU so I could have a dedicated PSU for GPUs?

ATX PSU are turned on when Pin 14 on the 24pin connector is pulled to ground. Pin 14 is usually wired with a green wire. So the simplest way to make this work, you just need to use a wire or something to connect that to any ground pin (black wire). A better way is to connect it to your main PSU so that it will turn on/off accordingly as well.


Many thanks. Do you mean I can connect the "power on" pin to a ground pin on the same 24 pin connector (or any ground pin on any component)? I know nothing about PSU. Just want to make sure it is safe, so I wouldn't short circuit my PSU.
Xephan
Newbie
*
Offline Offline

Activity: 42
Merit: 0


View Profile
July 23, 2011, 02:53:16 PM
 #4
Quote from: polymorpher on July 23, 2011, 02:45:09 PM
Quote from: Xephan on July 23, 2011, 02:16:16 PM
Quote from: polymorpher on July 23, 2011, 02:06:27 PM
My PSU refuses to provide power to GPUs if 24pin and 8pin cable are not connected to motherboard. Is there anyway to trick the PSU so I could have a dedicated PSU for GPUs?

ATX PSU are turned on when Pin 14 on the 24pin connector is pulled to ground. Pin 14 is usually wired with a green wire. So the simplest way to make this work, you just need to use a wire or something to connect that to any ground pin (black wire). A better way is to connect it to your main PSU so that it will turn on/off accordingly as well.


Many thanks. Do you mean I can connect the "power on" pin to a ground pin on the same 24 pin connector (or any ground pin on any component)? I know nothing about PSU. Just want to make sure it is safe, so I wouldn't short circuit my PSU.


You can connect the 24pin to any ground pin, there are pull down resistors to prevent shorts. Anyway you can find guides online like this
http://www.overclock.net/faqs/15751-info-can-i-use-two-power.html
jthermit
Newbie
*
Offline Offline

Activity: 16
Merit: 0



View Profile
July 23, 2011, 02:59:58 PM
Last edit: July 23, 2011, 03:45:49 PM by jthermit
 #5
1. Connect any load to your PSU (6-pin cable to your video card, for example )
2. Connect a power cable to your PSU and turn on the switch on it (if it exists)
3. Then connect together green and any black pin of 24-pin ATX connector. I usually use a unbent metal paper-clip.
PSU will be in work until you disconnect green and black pins Smiley
Xephan
Newbie
*
Offline Offline

Activity: 42
Merit: 0


View Profile
July 23, 2011, 03:07:21 PM
 #6
Quote from: jthermit on July 23, 2011, 02:59:58 PM
3. Then connect together green and any black pin of 24-pin ATX connector. I usually use unbended metal paper-clip.

Unbent paper clips are my favourite for doing this too Cheesy
Pages: [1]
  Print  
Bitcoin Forum > Other > Beginners & Help > Dedicated PSU for GPUs?
 « previous topic next topic »
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!