Asus EX-B660M-V5 PRO D4 Users Manual English - Page 17
System memory, Recommended memory configurations
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1.4 System memory This motherboard comes with two Double Data Rate 4 (DDR4) Dual Inline Memory Module (DIMM) sockets. The figure illustrates the location of the DDR4 DIMM sockets: DIMM_A1* DIMM_B1* Channel Channel A Channel B Sockets DIMM_A1 DIMM_B1 • 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 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. • 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. • Actual memory data rate depends on the CPU types and DRAM modules, for more information refer to www.asus.com for memory support list. Recommended memory configurations DIMM_A1 DIMM_B1 DIMM_A1 DIMM_B1 ASUS EX-B660M-V5 PRO D4 1-9