/ Sign-up
Your question

What's the pinout for a PSU with BOTH 24 and 20 pin connectors?

  • Motherboards
  • Power Supplies
  • Dell
  • Components
Last response: in Components
May 19, 2013 11:47:44 AM

Hi all,

This is my first post so please forgive if I'm posting in wrong place, etc.

I am trying to figure out the pin-out of my PSU as I want to test to see if it is working properly. Am confused by the connectors it has.

I have a Dell Precision T5400, which has an EATX format mobo. On this mobo there are two PSU connections: P1 which is 24 pins and P2 which is 20 pins.

The PSU I have is an 875W unit which has the 2 connectors mentioned plus 1x 4-pin mole and 2x 6-pin connectors:

My PC won't boot, but there appears to be some power to the mobo, so I think that either it's the PSU or the mobo which is faulty. If I know the correct pinout i should be able to test with a multimeter?

Unfortunately I can't find anywhere on the internet information about my type of PSU, it seems most ATX types have either a 20 or 24 pin connector not BOTH OR at least those are the only articles that pop up during a Google search.

Would really appreciate any help on this. Thanks in advance!

More about : pinout psu pin connectors

October 19, 2013 9:41:25 AM

I know this thread is a bit old, but I'm not seeing anyone post the answer. googling "T5400 pinout" found me this.