Guys thanks for all your help. I've got my Mini 9 and install a Crucial 32GB drive and 2GB RAM. I managed to load 10.5.6 but have many problems. 1st is the machine won't boot from the internal drive and comes up saying "media test failure, check cable"
"existing PXE ROM"
"operating system not found"
I can only boot if I have the 2 x USB drives connected that I installed on although I can select the internal Crucial SSD
as a startup disk in the Apple startup disk system preference.
Also I have no sound and the battery light does not light on the machine so only works on the charger.
Your help would be appreciated, I'm so close yet so far.
Thanks in advance.