Asus PRIME Z490-P Manual page 17

2. DIMM slots
This motherboard comes with four Double Data Rate 4 (DDR4) Dual Inline Memory Module
(DIMM) sockets.
A DDR4 memory module is notched differently from a DDR, DDR2, or DDR3 module. DO
NOT install a DDR, DDR2, or DDR3 memory module to the DDR4 slot.
Recommended memory configurations
PRIME Z490-P
1-5