Danke für Deine Antwort und den Link. Hab ich noch gar nicht dran gedacht, da USB-Ports schon alle besetzt. Hätte sogar noch zwei Sticks die den Anforderungen entsprechen müssten. Nur die Sache mit OS X 10.5 ist ein Problem (Installation ist noch auf 10.4.?). Hab mich schon umgehört und bisher nichts gefunden. Die Geschwindigkeit ist eigentlich nebensächtlich. Die Maschine hängt am Soundstudio und braucht nur Netz um Files von der Windose zu laden.
Hi I had the Power-On-Click/Power-Off-Problem. Most forums told "it was dead".. (bad soldering contacts, powersupply etc.) ..IT WORKS NOW: The solution is to make maimboard-reset WHILE POWERCABLE PLUGGED!! Remove onboard-battery first. The manual shows the motherboard-reset with working battery! While the mac is plugged to power you don't need any battery - worst case is lost of date and time settings. I don't know any electronic device that does anything WITHOUT POWER :-)
I guess you have a machine with 'Apple T1 Security Chip'. That means no good! With T1-Chip it is possible to protect EVERYTHING even possibility to completely block Recovery, Access to System Harddisk and so on.. with a SIMPLE PASSWORD! If you don't know that - I am sorry to say - your Machine is USELESS!
Only option then is knocking at Apple's doors, begging on knees, that they go for a secure workaround. That does exist for EVERYTHING as a Senior-Apple-Developer told me once. Truth? I really don't know.
Does anyone have a scheme or a photo for the assembly of the whole device? I've got the electronics disassembled and am not sure if the parts are complete.