Power Mac (M8570) cant load 10.5, unless ram removed
runs 10.4.11, well, but will only load 10.5 if I remove 3 of the 4 ram chips. When I replace them it is unstable (4x 512 ram), so restarted on 10.4.11.
What causes this; change the ram, or run on 512 Mb, or leave on 10.4.11 ?
Is this a good question?