Asus PRIME B650M-A WIFI Users Manual English - Page 21

1.4 System memory This motherboard comes with four Double Data Rate 5 (DDR5) Dual Inline Memory Module (DIMM) sockets. The figure illustrates the location of the DDR5 DIMM sockets: DIMM_A1 Channel Sockets 1st DIMM_A2 DIMM_B1 Channel A DIMM_A1 & DIMM_A2 DIMM_B2 Channel B DIMM_B1 & DIMM_B2 • You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • A DDR5 memory module is notched differently from a DDR, DDR2, DDR3 or DDR4 module. DO NOT install a DDR, DDR2, DDR3 or DDR4 memory module to the DDR5 slot. • You may install 8 GB, 16 GB, and 32 GB unbuffered, ECC and Non-ECC DDR5 DIMMs into the DIMM sockets. • The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. • For system stability, use a more efficient memory cooling system to support a full memory load. • Always install DIMMs with the same CAS latency. For optimal compatibility, we recommend that you install memory modules of the same version or date code (D/C) from the same vendor. Check with the retailer to get the correct memory modules. • Refer to www.asus.com for the latest Memory QVL (Qualified Vendors Lists), and memory frequency support depends on the CPU types. Recommended memory configurations DIMM_A2 DIMM_A2 DIMM_B2 DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2 ASUS PRIME B650M-A WIFI 1-11