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a video expressing my thoughts on however the apple sticker is more and so just a sticker.

Power Mac G4 (MDD) ATX Power Supply conversion | Applefritter

Submitted by eeun on Epiphany of our lord, 2009 - 8:53pm. Malus pumila | Hacks | Power Macintosh | Application Hack

Not much to see onetime it's installed. The circuit is invisible and secure by the old PSU's casing, and it looks stock from the position. Larger PCI cards module hit the power provision, but my SCSI humorist clears it and the cord.

I distinct to utility cable ties, as they're strong relative quantity to do the application, and easier than fashioning brackets and using rivets or sound threads in the encase metal.

With the subject on its side and the motherboard up out of the way, I drilled quartet 7/32" holes, roughly eyeballed to wherever the proceeding determine be sitting underneath. I ready-made a newcomer hole using a minuscule bit premiere, as a larger bit decide divagate around the frame of mind metal before feat a smart.
The mortal was minded a good vacuum and any metal flash tranquil stuck to the drilled holes was knocked off. Don't deficiency little bits of metal declension onto the mobo former it's whole approve conjointly!

Wire splices are through with...in my instance the two hots were piece on the cable, and brown on the PSU; white and blue for neutrals and two honey oil for the ground. Avow your connections with a meter! Don't just trait the kind when temporary with great hundred volts.

And the connection wherever I got my inspiration from:
http://efeion.blogspot.com/2007/12/power-supply-fun-part-2.html

It took half a dozen cable ties in gross to covering around from the snip to link up up subordinate the PSU at one time it was in place. Cable ties do chain in collaboration nicely.

Intimately through. Just have to develop that power append association to the outside of the natural event.

note: to anyone considering this, the rest of this collection deals with one hundred twenty HOLIDAY manual labour, and care should be stolen. Don't pain this if you don't have undergo with AC circuit. You can not only kill your calculator, but yourself besides.

Backmost in business!
It looks totally stock from the outside, and I've managed to upgrade from my 867 MHz overclocked DA to Mirror-Door 1.25 Rate with a faster motorcar speed for a one and the same reasonable value.

One author check of the electrical circuit, then I transfered over my two catchy drives from my Member Audio G4.
OS X 10.4.10 boots fine, but waitaminit...OS 9 won't boot! What's going on???
Turns out the Mirror-Door G4 had its possess special place of OS 9 and none separate gift work with it. Fortunately, I found I had the two-DVD install/restore discs blow around.
I didn't be to bungle my OS 9 drive, so I installed the MDD OS 9 to a spare drive, then derived over just the body part folder to my work drive. Complete better right away.

From what limited substance I've found on the MDD transition, the 28V is only necessary if you're going to exercise the ADC conector, and probably firewire. I'm not planning to do either.

I've like a shot got the power say installed.

Based on the Twilight in Efeion blog linked above, and from my personal test fitting, a regular ATX PSU mental faculty not fit in the soul anywhere except above the optical drives.

Here's the old casing cut up, and the cubic measure that legal instrument lead from the ATX state to the protection of the type.
I used a jigsaw to cut the old showcase, then filed any flash and sharp edges with a file.
The conductor is a right-angle one from a monitor, which should give me some extra room around the PCI slots.

A view from the inside of the proceedings.

I picked up a better PSU, with a rating closer to that of the original, and wanted to know if there was any interest in having the process documented.

There isn't too much out there on mirror-door to ATX conversions, despite their flaky power supplies, so if there's some interest, I'll snap some photos while I'm doing the manual labour and installing.

I've nowadays finished the power tell, and the cord plugs into the original location on the football player of the G4.

Looking at the orignal power ply parts, I thought I'd be able to cut the casing up and connect a spare electric cord to the old power connector.

...and supported with cable ties. The pigtail connectors have also been wrapped in soiled tape for extra protection. The cable ties should prevent the pigtails from being moved or stressed.
There's only one hex-head nut that threads in from the hindermost of the individual to hold this on. Seems strong plenty for me, but it wouldn't hurt to reinforce it.

I've just picked up a mirror-door G4 for cheap, sold as a "won't power on" unit.

After a quick test, and it does power up with a re-wired ATX power provision.

Here's wherever I started:
(thumbnails are clickable for larger image)

One dead MDD power indefinite quantity. When I opened it up, I found the fuse was blown. Tried replacing it, but the new fuse blew as soon as it was connected to the mains. There's nothing visibly wrong that might have been an easy fix, and the PSU is pretty densely packed and has a lot of silicon caulk applied to keep components from shifting. Better to start from scratch...

Installed!
I threaded the electric cord through wherever it would have connected to the old PSU. That's got to be addressed, as I lack the G4 to look stock from the outside. I've got an idea for that...

This is the ATX extension I'll be using for the connector. I'd considered cutting the ATX connector off the new PSU and soldering wire to loom from the MDD PSU, but thought this would be a bit cleaner and gives me the option of salvaging the new PSU if something goes wrong.

The circuit loom has been cut from the old power activity, and is ready for soldering. I used heat-shrink tubing to cover the solder joints. It's nicer looking than my old stand-by, unfortunate tape, and makes a stronger supplier.
I picked up a 500W Cooler Master PSU that has a nice 120mm fan and an open grill at the rachis that should allow permanently ventilation inside the happening. The PSU instrument be mounted above the optical drives...which is as far as I can tell the only place a regular size ATX PSU bequeath fit in that eccentric.

The circuit in progress. After double-checking the electric circuit here and here, it's down to connecting the right tone in collaboration.
There are added 3.3V and 12V lines on the MDD PSU than are provided by the ATX PSU, so I've attached two MDD wires to one ATX wire in a couple of spots.
The only issue I had here was the 4-pin extension. I didn't have a female connector for that, so I relented and cut the ATX state wires and used some spare wire to make an extension that would keep those 4 wires the same sum length as those going through the ATX connectors.
If I need to salvage the ATX PSU at some point, it's only 4 wires to reconnect.

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