Acer Altos R920 Series - Manual (Page 186)

Appendix B: Memory configuration 168
Population with four memory boards
DIMM slot Memory board A Memory board B Memory board C Memory board D
Total
memory
1 to 2 2 x 1 GB 2 x 1 GB 2 x 1 GB 2 x 1 GB 8 GB
1 to 4 4 x 1 GB 4 x 1 GB 4 x 1 GB 4 x 1 GB 16 GB
1 to 6 6 x 1 GB 6 x 1 GB 6 x 1 GB 6 x 1 GB 24 GB
1 to 8 8 x 1 GB 8 x 1 GB 8 x 1 GB 8 x 1 GB 32 GB
1 to 2 2 x 2 GB 2 x 2 GB 2 x 2 GB 2 x 2 GB 16 GB
1 to 4 4 x 2 GB 4 x 2 GB 4 x 2 GB 4 x 2 GB 32 GB
1 to 6 6 x 2 GB 6 x 2 GB 6 x 2 GB 6 x 2 GB 48 GB
1 to 8 8 x 2 GB 8 x 2 GB 8 x 2 GB 8 x 2 GB 64 GB
1 to 2 2 x 4 GB 2 x 4 GB 2 x 4 GB 2 x 4 GB 32 GB
1 to 4 4 x 4 GB 4 x 4 GB 4 x 4 GB 4 x 4 GB 64 GB
1 to 6 6 x 4 GB 6 x 4 GB 6 x 4 GB 6 x 4 GB 96 GB
1 to 8 8 x 4 GB 8 x 4 GB 8 x 4 GB 8 x 4 GB 128 GB