I've just bought a DA logic board to replace/upgrade the sawtooth board that I killed.

Now, the sawtooth board was running off an adapted ATX PS, and I intend to do the same with the DA (albeit with a more powerful PS than the Enermax 300w I had on the Sawtooth). However, the DA ps has an additional +28v rail that the sawtooth PS and ATX PSes don't have.

This isn't a big deal... I can get a PS that'll do +28v. What I need to know is how many amps that rail is rated for on the DA ps.

So, if anyone's got a G4 Digital Audio, or a power supply for one, I'd really appreciate it if they'd either take a picture of the sticker on the power supply that's at a high enough resolution and clear enough that it's readable, scan the label, or just post what it says.

Thanks.

find the .pdf service manual. there would be a clear pic of that and many other areas on the inside.

http://www.macmod.com/component/option,com_weblinks/catid,56/Itemid,4/
check down a few links and you'll see a link to "Apple Service Manuals"

+5V 20A
+3.3V 24A
+28V 4.04A
+12V 8A
-12V 0.25A

Thanks. Got the logic board yesterday, set it up with a PC Power & Cooling 400w ATX power supply and an 8.3a @ 24v regulated switching bench ps. Works great.

Post edited by: Geeky1, at: 2005/07/09 09:44

Also, does anyone know if a Gigabit Ethernet PS will work with a Digital Audio logic board?

So far, I know both are 338w, but I'm not sure if the pinouts are the same.
I'm Googling the issue already, but so far have only found everything besides the answer to my question :pinch:

Post edited by: Antonio, at: 2005/07/19 06:25

Yes it will.
Please see the topic I am about to post entitled "PowerMac PSU Pinouts".....

Post edited by: waragainstsleep, at: 2005/07/19 13:05