Asus PRIME TRX40-PRO, Manual

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1-6 Chapter 1: Product Introduction
Chapter 1
Memory configurations
You may install 4 GB, 8 GB, 16 GB, and 32 GB unbuffered ECC and non-ECC DDR4
DIMMs into the DIMM sockets.
You may install varying memory sizes in Channel A, Channel B, Channel C, and Channel
D. The system maps the total size of the lower-sized channel for the quad-channel
configuration. Any excess memory from the higher-sized channel is then mapped for
single-channel operation.
• 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 or overclocking condition.
• Always install the DIMMS with the same CAS Latency. For an optimum compatibility,
we recommend that you install memory modules of the same version or data code
(D/C) from the same vendor. Check with the vendor to get the correct memory
modules.
• Visit the ASUS website for the latest QVL.