Acer Predator PO5-655 User Manual page 15

Rule
Memory A>B
(Different
capacity value)
Size
8GB
16GB
16GB
32GB
24GB
32GB
48GB
64GB
Note
1. Follow Intel's SPEC, In the combination of installed memory, as
long as DIMM3 or DIMM4 is used, the memory frequency will
only support 4000MHz, whether plugging in memory is
4800MHz or higher.
2. Since ADL platform limitation, It is not recommended to mix 1R
and 2R memory
3. Install the X.M.P memory and you would like to enabled X.M.P
function, please manual to change the Extreme Memory
Profile[X.M.P] item from "Disabled" to "Enabled" in BIOS setup
menu.
DIMM1
A
A
A
A
A
A
A
DIMM1 DIMM3
8GB
16GB
8GB
16GB
8GB
8GB
16GB
16GB
DIMM3 DIMM2
/
/
/
A
B
A
B
DIMM2
N/A N/A
N/A N/A
N/A 8GB
N/A 16GB
8GB 8GB
8GB 8GB
16GB 16GB
16GB 16GB
Upgrading your Computer - 15
DIMM4
/
A
B
A
A
A
A
DIMM4
N/A
N/A
N/A
N/A
N/A
8GB
N/A
16GB
/
/
/
/
/
A
B