
Memory Type: , (non-ECC)
Maximum Memory: 768MB
Slots: 3

To determine which revision logic board you have, you must look at the ROM version. Revision 1 has ROM $77D.40F2, Revision 2 has ROM $77D.45F1, and Revision 3 has ROM $77D.45F2.In order to support 768MB of memory, the logic board must be revision 3.

Memory or DRAM is the 'working' memory of the computer. It's used to store data for programs (sequences of instructions) on a temporary basis.

video - installing memory