Wierd stock power supply in my system. got 20 pins when really has 24?

[aj95]

hello. this is my first time posting in this section. so im just gonna get to the point.
i opened my case and i took down my PSU's model number. ( forgot why )
i looked it up on newegg and found it. newegg says it has a 24 pin connector as well
as all the other websites. but this is the weird part. only 20 pins are connected to my motherboard.
its not a 20 + 4 pin its SUPPOSE to be 24 but only 20 are connected. and there's no other +4 part of it.
why is this?


other question:
if i buy a PSU and it has a 20 + 4 main connection, so i HAVE to connect the + 4 part of it? or just
leave it like my previous PSU and only connect 20 and just leave the + 4 hanging. will this make a
difference?

 

[skywalker9952]

What motherboard do you have? Is you computer homemade or pre-built by a major manufacturer? If you bought it pre-assembled and the motherboard only needed a 20 pin connection the +4 part may have been not included by your oem.

 

[jerreece]

If you replace your PSU for some reason, and it has a 20+4PIN connector, you'll be fine. If your motherboard only needs 20 pins, you can just leave the +4 pins hanging. That's why they make it a 20+4 pin rather than a 24pin.

And if your motherboard only has a 20 pin connection socket, then don't worry about whether your PSU should have a 20+4, since you don't need the 4 extra pins.

 

[aj95]

it was pre-built my eMachines.
heres my specs:
http://www.emachines.com/products/products.html?prod=T5088

 

[aj95]

If you replace your PSU for some reason, and it has a 20+4PIN connector, you'll be fine. If your motherboard only needs 20 pins, you can just leave the +4 pins hanging. That's why they make it a 20+4 pin rather than a 24pin.

And if your motherboard only has a 20 pin connection socket, then don't worry about whether your PSU should have a 20+4, since you don't need the 4 extra pins.

ok thanks

 

[skywalker9952]

Looks like they just left the +4 part off. So if you buy a new PSU then you can go by what jerreece said.