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Reviving a Power Mac G3 - it is the floppy drive, stupid

bobo68

Well-known member
I have Power Mac G3 beige minitower which I think is a perfect bridge Mac between the old classics and the modern world. It still has SCSI but can also be equipped with USB and Firewire ports. It can read and write HFS and HFS+ with Mac OS 9 and up.

After some years in storage I needed mine again. Unfortunately it would not start up. The power supply would run but no "bong" and the mobo would not come up. Bummer.  xx( I went through all the checks and things like putting in a fresh battery, reseating the RAM, ROM, voltage regulator, disconnecting all PCI cards, doing (CUDA) resets, .... Nothing, same symptoms. The PSU would start and power was supplied to the drives (+5V +12 V) but the machine would not boot. Unplugged the IDE cables- still nothing.

Out of pure dispair I disconneted the floppy drive and voilà, the Mac boots! Reconnected the floppy drive - still boots! WTF? bw:)

Anyway, maybe this is helpful if your Power Mac G3 is acting up.

 

jimjimx

Well-known member
I had a similar problem years ago, but it turned out that the personality and needed to be reseated. 

 
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