While a standalone official manual for the Acer IPIMB-AR (rev 1.02a)
If the official Acer portal doesn't provide what you need, you can turn to reliable third-party databases. acer ipimbar rev 102a manual link
: 4 x DDR3 DIMM slots supporting dual-channel DDR3 1333/1600 MHz memory (Up to 16GB total capacity). While a standalone official manual for the Acer