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I’ve upgraded the cpu of my mac mini and the Ram. The very first boot went fine, the system started (Os X Tiger) and cpu and ram have been detected correctly, but after less than a minute it suddenly power down. I’ve neve been able to power it up again. No fan, no light, no chime nor video. I can’t smell anithing strange, there is no sound at all. I’ve tried to put back the original cpu and Ram with no luck. Unfortunately I have no other power supply to test, and I fear the logic board is probably gone, even if I can’t really understand how. I’ve even tried SMC reset. Apple store is not an option, this computer is ten years old. Any other suggestion?
The Macmini1,1 system won’t support the newer Core 2 Duo 2 GHz T7200 CPU. You’ll need a Macmini2,1 series system to use the Core 2 Duo chip.
Hi I’ve taken apart my Mac mini 1,1 and clean it all out and reapplied the thermal paste and now it won’t power on at all. Any help would be much appreciated.
My Mac mini 1,1 wouldn’t power after I upgraded to a T7200 as well. I put original cpu back in and still no power. I decided to look at board to make sure I didn’t damage it then I Noticed something labeled SW5900. It’s a switch I held it down for several seconds reconnected all parts except lid plugged in and it powered up. Try pressing the SW5900 switch while unit is unplugged switch is located near cpu. Gonna upgrade firmware to 2,1 then try upgrading again hope this helps someone Mike L
