I have 6 PowerBook 100's.... All not functioning.

This weekend I tried to make out of all these one which would work....

No succes!! xx(

I tried to combine hard disks and motherboards without any succes.

I heared disk spinning but then stop agian, etc....

Who knows how to handle this bette??. I cannot imagine that out of 6 not one will work!

I also looked at my power. But that gives 7.5 volts as it should.

Where should I start!