Well, that GPU may make a big difference.

AND probably, makes no difference... pin 18 or 19?

Can you boot your MDD into Target Disk Mode? If so, then you might be able to run diagnostics on it using the G4 iBook? Maybe.

Currently I am also looking for… ASD v2.1.5 (Apple Service Diagnostics) for the MDD because if you cannot access your machine from the G4 iBook using Target Disk Mode to possibly run diagnostics… then ASD v2.1.5 might be a better, more direct route. (If you don’t have an earlier model of MDD requiring a different version of ASD).

I’ve already forgotten if you’ve a firewire 400 or 800 MDD — or perhaps you’ve not specified the exact MDD that you do have? And then again, in order to use ASD you’ll have to have an onboard DVD drive in order to boot from it. (Or a bootable external DVD drive.)

Another little note: Disconnect and or remove every non-essential peripheral (and network connection) AND internal cards... from your machine, other than the absolute bare essentials for it to function.

AND it’s odd that the machine will only accept 1 stick of RAM? This leads me to also wonder IF maybe the machine’s motherboard was somehow possibly damaged prior to your possession? (Especially if we can possibly rule out ATX PSU problems.)

*The “correct” version of ASD for your specific machine, option-key booted from a burned disc allows one the option of either booting into Open Firmware or via the OS X operating system. BUT you have removed the DVD drive in order to accomodate the ATX PSU.

Will the MDD accept and read & write to a USB connection? (Thumb drive or external USB drive.)

Done, will test this after i will get my new radeon 9000 because original gpu lacks vga and is damaged

Been playing with my G4 today - had a change of heart regarding soundcards - I really like the RME cards (and have never had an issue with one) whereas the Audiophile was buggy and troublesome from the start.

So I removed the M-Audio.

To uninstall properly is it just a case of searching for all related files and deleting? So - Extensions, Settings, Applications... anywhere else?

When I set up my G4 I stuck two (IDE) hard drives in, thinking one for data and audio files and the other for apps and system files.

I've noticed recently that the Audio/Data drive has ended up with duplicates of all the system folders, including applications. They don't seem to be identical to the folders on the system drive, but they do seem to have some identical files...

Apologies for my ignorance but (as someone who is a PC native and a mac dabbler) this seems very odd!

Performance considerations aside it defeats the object of having everything neatly sorted into the two drives. In an ideal world, in the event of issues, it would be nice to be able to nuke the system drive, and reinstall but keep the data...

As things stand I'd be tempted to merge the two drives to keep everything clear and simple - but will that break my system? I've got way more space than I need anyway and at this stage I have firewire and SCSI drives than I can use for audio projects, if needed...

Or am I looking at things the wrong way?

Apologies again if I'm being very stupid. I haven't plugged the machine in for over a year so I'm definitely rusty on what's what!

I have brown and not grey cable connected to pin 19

Thanks for the pics!

I might not be able to see it in your pics, but I cannot see the “power ok” (POK) line from the ATX connected to pin 18 [as mentioned by ATXG4].

“Apple systems don't utilize the power ok (POK) line, but it is needed for an ATX power supply to function properly. I've found it best to connect the POK line to the 3.3v from the power supply. You can do this either via splicing/soldering, or you can just insert it into one of the 3.3v connections to the motherboard. I usually plug it in to pin 18.” -ATXG4 — http://atxg4.com/mdd.html

Other than that, it appears that you’ve matched the recommended pinout configuration for the MDD. Maybe someone else can spot a possible problem?



Only other thing that I might check would be the actual, individual output voltage of each wire from the ATX PSU with a multimeter. And again, someone else here that might have actually done this ATX PSU conversion may (hopefully) chime in. Regretfully, I have Quicksilver ATX conversion waiting on my backlog of projects so I cannot undertake a similar MDD conversion attempt at this time.

It might be helpful to also provide information on which specific ATX PSU (and its specs) that you are using?









Note the grey wire [power ok (POK) line] between the two orange wires, in the left-side (top row) image above?

Pics of wiring

I just now used PayPal for this and it only allowed a recurring subscription. Single contributions should be accepted also. Something in the way you set it up?

Yeah, that's the way the forum software does it. I guess I could set up a Patreon or something like that to add support for a once payment, but I'm not in it for the money at all. Maybe adding a $1/month tier might be good enough?

And thanks a lot for all the support! 

Just went through the flow. The process was straightforward, thanks for the hard work keeping these communities alive!

So, I got the Paid Subscriptions function working in the forum software.

Any thoughts on other payment "plans" than the current one is greatly appreciated as well.

I just now used PayPal for this and it only allowed a recurring subscription. Single contributions should be accepted also. Something in the way you set it up?