Sign in with
Sign up | Sign in
Your question

Friend has New Power Supply, 20+4 pin won't fit

  • Power Supplies
  • Components
  • Product
Last response: in Components
May 10, 2012 6:57:41 PM

So basically, my friend bought a new power supply (A ZT-750) after an issue that turned out to be the PSU, but he realised that everything had gone rosy up until the 20+4 pin. Now he's attached several power supplies, and me also, but I've never heard of anything like this, and the internet hasn't either. You says that he's trying to push the 20+4 pin in, but it just won't click, and it's not fully in.

This is something I've never seen before, and something he's never seen before. Does anyone know what is wrong with it?


AMD Phenom ii x4 840 @3.2ghz
XFX HD Radeon 6850
OCZ ZT-750w
4gb RAM
500gb Seagate Barracuda

Thanks in advance. He also said it was hurting his fingers how hard he was trying to get it in in the end. Any ideas?

More about : friend power supply pin fit

a c 139 ) Power supply
May 10, 2012 7:02:43 PM

Does a visual inspection with a good flashlight of the motherboard power connector show anything stuck in one or more of the sockets at the 24pin connector?
a b ) Power supply
May 10, 2012 7:03:37 PM

Inspect the connectors for any obstructions or debris that may have got stuck in them.

If that's not the case, it looks like there was a manufacturing defect on either the PSU or the motherboard that is causing the connector to not fit. All I can suggest is try a different PSU with that motherboard, if the motherboard takes the connection okay with a different power supply, then that OCZ PSU has a defective 20+4 pin connector. If the motherboard won't take a 20+4 pin connection from any PSU, then the motherboard is defective.
Related resources
a c 139 ) Power supply
May 10, 2012 7:06:11 PM

It just occurred to me - do the same type of check on the PSU 20+4 connector - looking for some type of damage there.
May 10, 2012 7:11:54 PM

Other PSUs plug in fine. He sent me an image of how the connection isn't... in. I'll upload it.
May 10, 2012 7:14:25 PM


Wouldn't let me edit last post, sorry!
a c 139 ) Power supply
May 10, 2012 7:17:47 PM

Juggernog said:
Other PSUs plug in fine.
That's definitely pointing the finger back at the PSU's connector plug.
May 10, 2012 7:43:00 PM

Hey I am the friend he mentions. For some reason he can't access this post anymore.

I tried connecting my old psu in to the slot and it plugs in like a dream. If the 20+4 pin is hanging out a little is that really bad? I have to use force to take it out even though it's not locked on completely. If I was to power up the computer would the pc be in any danger?

a c 139 ) Power supply
May 10, 2012 7:49:15 PM

I think it's safe to operate that way.

Long term: You probably want to talk to OCZ and find out what they think about the situation.