Power supply for mac powerbook g4
As usage of DOS gave way to the graphical user interface, the PowerBook's arrangement became the standard layout all future notebook computers would follow. In the early days of Microsoft Windows, many notebooks came with a clip on trackball that fit on the edge of the keyboard molding.
Power supply for mac powerbook g4 portable#
Portable PC computers at the time were still oriented toward DOS, and tended to have the keyboard forward towards the user, with empty space behind it that was often used for function key reference cards. These machines caused a stir in the industry with their compact dark grey cases, built-in trackball, and the innovative positioning of the keyboard that left room for palmrests on either side of the pointing device. This proved immensely useful when it came time to stow all the wires behind the DVD drive and up to the power supply.In October 1991, Apple released the first three PowerBooks: the low-end PowerBook 100, the more powerful PowerBook 140, and the high end PowerBook 170, the only one with an active matrix display. My G4 MDD has a new lease on life for about $30 USD including the cable ties and mounts.Īlso, I picked up a 6" extension Y cable to extend the power going to the hard drive. I'm thinking about adding a PCI slot fan for more ventilation but we will see. The PSU fits in just fine and clears the video card nicely. I used epoxy to mount four cable tie mounts to the top of the inside of the case, then used cable ties to hang the power supply from the mounts. If it doesn't, I told you not to do this in the first place.
The white wire from the MDD (pin 14) is for an Apple Display and isn't used in my configuration.Twist two of the same color together from the MDD and use one from the new ATX. There will be a few black and yellow wires from the MDD that won't have a matching partner on the new harness. Twist the matching color wires together, one at a time, solder, and cover with heat shrink.On the plug from the new ATX power supply, one at a time, cut and strip 1/2" from a wire, matching the color with a wire from the old G4 harness.Strip 1/2" each from the end of the 24 wires from the old G4 MDD power supply.Cut the wire harness from the old power supply as close to the power supply as possible.Remove the old power supply from the G4 MDD.The computer is working, who knows how long it will last? You? You should not do this, you have been warned, there is danger and electricity involved, this list worked for me, you are on your own.
Power supply for mac powerbook g4 full#
The internet is full of good information so I went for it. I found a post on the internet stating that a 300W power supply should be sufficient without the Apple Display. I haven't tested FW800 because I don't have any FW800 devices. It's day two and everything is working fine so far including DVD drive and firewire 400. I used an APOLLO 300 Watt Micro ATX Power Supply.
I have just converted an ATX power supply to work in my G4 MDD Dual 1.2 FW800. Unlike the ATX standard the MDD logic board does not have a pin for PWR_OK and -5V, so you can leave them unconnected.Īlso note that the psu needs to have a really strong 12V line (10A+ recommended) and it can not be any higher than 7cm to fit inside the MDDs case. if in doubt, use the pinouts on or wikipedia as reference. Use the broken psu for reference as the wire colours will match in most cases. if you don't wanna void the warranty of the new power supply, buy an adapter for 20->24 pin ATX and tinker with that to match the pinout. What ponders me though is that the integrated fuse will not blow, though it is rated much less than the breaker.īe careful when using a new atx power supply! the connector will fit but the pinouts are different and you my end up frying either your logic board or the new power supply. I tried analysing the defective psu but neither rectifier, capacitor or anything else on the primary seems broken, the breaker kicks out as soon as i connect it to my wall outlet.
I also happen to have a 1.25GHz MDD with a failed PSU and i am now using the atx psu of a broken Maxdata desktop PC.