Main > Main Forum

Need help! How to get -5v out of newer ATX Power Supply's

Pages: (1/2) > >>

Savannan:

Hi all...

I need help...I picked up a cosair 600w power supply today for my multi-mk cab.   Everything was going good but I was looking at the Pinouts on the 24pin connector and it doesnt have -5v pin.  /cry   

I looked at wikipedia and found this
----------------------------------------
Pin 20 (formerly −5V, white wire) is absent in current power supplies; it was optional in ATX and ATX12V ver. 1.2, and deleted as of ver. 1.3.

---------------------------------

Is there a mod that I can do get achieve -5v out of this power supply? Or would I have to buy a older P/S?

Thanks!!!!!

Sav

BobA:

You can use a -5v regulator to get 1A -5V from your -12V supply.

Google LM7905

 :D

Thenasty:


--- Quote from: Savannan on September 23, 2011, 05:10:09 pm ---
Or would I have to buy a older P/S?

Thanks!!!!!

Sav

--- End quote ---

No need to buy

http://forum.arcadecontrols.com/index.php?topic=101280.0

also in the FREE Section

Franco B:

For Jamma boards that require -5v I have used a Negatron wired to a Jamma pass-through. It may not be the solution for you but its worth noting for reference.



 

Savannan:

whta does that negatron do?

Pages: (1/2) > >>

Go to full version