I remade some of the wiring tonight to a much neater design. Still needs to be tied together but it's otherwise working fine. Used a 20 to 24 pin extension cable this time as well.
For anyone else looking to attempt the project, i've put together a wiring diagram for the logic board connector.
Quicksilver ATX Wiring Diagram (Logic Board) (Updated- 31/08/08 )
It's still quick and dirty, and using 2 wall outlets, but the secondary supply in there at the moment is only a temporary fitting.
The success in starting it up was not without hiccups though. Initially the system had failed to boot because the ATX's "Power Good" line was connecting to a constant 3.3v line on the logic board, which for some reason shut off the machine on boot. Solution was to cut out the Power Good line and re-route it to run off another 3.3v line.
Then it wouldn't boot OS X, hanging during the boot process. This was another potentially major snag as we had suspected a defective L2 cache. Luckily the problem was just with the installation of OS X on the hard disk and, also after reconnecting the last 3.3v line, the system fired straight up into Mac OS X.
Just need to dive in and clean up the wiring now. I will still use the PowerBook supply, the system is already prepared for it as i've soldered in plugs rather than a direct wire-to-wire solder. When the PowerBook PSU gets here, pop out the old Hewlett Packard 19v, slide in the PowerBook PSU and plug it in. Simple.
From there it's really anyone's guess, I could pull the HD from this eMac and drop it into the Quicksilver I suppose. The speed difference over the eMac is noticeable, plus it has USB 2.0.
For anyone else looking to attempt the project, i've put together a wiring diagram for the logic board connector.
Quicksilver ATX Wiring Diagram (Logic Board) (Updated- 31/08/08 )
It's still quick and dirty, and using 2 wall outlets, but the secondary supply in there at the moment is only a temporary fitting.
The success in starting it up was not without hiccups though. Initially the system had failed to boot because the ATX's "Power Good" line was connecting to a constant 3.3v line on the logic board, which for some reason shut off the machine on boot. Solution was to cut out the Power Good line and re-route it to run off another 3.3v line.
Then it wouldn't boot OS X, hanging during the boot process. This was another potentially major snag as we had suspected a defective L2 cache. Luckily the problem was just with the installation of OS X on the hard disk and, also after reconnecting the last 3.3v line, the system fired straight up into Mac OS X.
Just need to dive in and clean up the wiring now. I will still use the PowerBook supply, the system is already prepared for it as i've soldered in plugs rather than a direct wire-to-wire solder. When the PowerBook PSU gets here, pop out the old Hewlett Packard 19v, slide in the PowerBook PSU and plug it in. Simple.
From there it's really anyone's guess, I could pull the HD from this eMac and drop it into the Quicksilver I suppose. The speed difference over the eMac is noticeable, plus it has USB 2.0.