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G4 cube won't work
Posted by: Cktwo on 2024-02-18 02:34:41 Hi all, okay all you G4 cube experts out there: I need your help yet AGAIN! I have a weird problem with my 2nd cube. Whenever I connect power, it immediately turns on (without touching the power button). After a few seconds, the power button with flash very rapidly for about a second, the cubes turns off and on again, repeating this forever. It won't show any picture at all. I have already tried the following all of which does not make difference to the behavior: - used the original VRM instead of the Artmix - removed some of the RAM, even all of the RAM, used different DIMMs - tried the stock 400 MHz G4 board, tried a 1.2 GHz Sonnect Encore - unplugged the hard drive - unplugged the NMI board - unplugged the modem and the Airport card + antennas - used a different PSU than the original - reset the PRAM, removed/replaced the battery - used a different power button - used a patched Nvidia 6200 graphics card, the original ATI graphics card and tried even with no graphics card at all As I said, nothing changes the behavior of the system: You plug power in, it immediately turns on, flashes rapidly (too fast to count the flashes unfortunately), turns off and on again.... Any ideas? Thank you! Kind regards Christian
Posted by: François on 2024-02-18 08:36:13 Did you try to run it naked, outside of the acrylic shell? IIRC there’s a gasket inside the acrylic shell, around the place for the power button, that could cause erratic behavior. It’s safe to remove it, it was even documented by Apple.
Posted by: Cktwo on 2024-02-18 10:36:25 It‘s back alive for unknown reasons. I disassembled and reassembled it which, to my surprise, did the trick. At least for today, we‘ll see what the Cube is up to tomorrow….
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