xboxscene.org forums

Author Topic: Two Different Power Brick Units?  (Read 61 times)

mattest2542

  • Archived User
  • Newbie
  • *
  • Posts: 36
Two Different Power Brick Units?
« on: December 04, 2007, 07:12:00 PM »
I'm pretty sure both have fans in them and the difference between the two and three prong is that the third prong is to ground the device, while in the two prong it grounds the unit through the metal cage.
Logged

RDC

  • Archived User
  • Hero Member
  • *
  • Posts: 3913
Two Different Power Brick Units?
« Reply #1 on: December 04, 2007, 07:24:00 PM »
That part of it doesn't matter, 2 or 3 prong, same deal. The side ya need to look at is the one that plugs into the 360. There are 2 versions of the PSU and the newer one isn't gonna plug into the socket on the older 360.
Logged

InvadarZim

  • Archived User
  • Newbie
  • *
  • Posts: 2
Two Different Power Brick Units?
« Reply #2 on: April 06, 2008, 11:16:00 PM »
To clear this up there is no difference between the 2 and 3 prong models.

They probably changed over to two prong because that jack was cheaper (No extra ground pin).

On the 3 prong model they probably used it in one of two ways:

1. They simply tied the ground pin to the neutral pin.

2. They tied to ground pin to the RFI cage.

Both PSUs have a tiny fan in them. It is a compact fan (similar to those cheap small fans on ATI video cards) that draws its air from the tiny holes seen above the power connector and pushes it out the other side.

It draws air over a puny heatsink (less then 3/4" high) mounted to the metal cage and thermally joined with cheap white heatsink compound.

If you want a real cool running PSU use an ATX power supply like I do.
Logged