[Fr4665]

Hi, i got a 20pin which has a seperate 4pin connector attached, coming out of my PSU. My question is, is it possible to run a 20pin PSU in a 24pin motherboard ? if so what are its ups and downs ?

here is a picture:

EDIT: the motherboard im trying to run this on is a chaintech vnf4. it has one seperate socket for the 4 pin and then one long 24pin socket

EDIT: found my solution here :

http://forums.anandtech.com/messageview.aspx?catid=27&threadid=1478987&enterthread=y

 

[crazijoe]

It is possible but I would not recommend it. The amperage on the 12v rails are usually higher on the 24pin PSU (normally called ATX2.0) and power was increased to support 75w PCI-E requirements.
There are companies that make adapters to convert 20pin to 24pin but I would only use these in an emergency use situation.

more info on ATX2.0 PSUs here:
http://www.formfactors.org/developer/specs/ATX12V PSDG2.01.pdf

 

[Tumbleweed36]

Hi,

I have read your solution you posted and that will work. However, I must say that I agee with CraziJoe on this issue. I would not recommend you use the 20 pin on a 24 pin connector unless you have an emergency that needs to tide you over until you get what you really need. My recommendation would be to bite the bullet and get the real deal.