Asus TUF GAMING Z790-BTF WIFI Manual page 18

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2.
DIMM slots
The motherboard comes with Dual Inline Memory Modules (DIMM) slots designed for
DDR5 (Double Data Rate 5) memory modules.
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.
Recommended memory configurations
Memory configurations
You may install Non-ECC DDR5 DIMMs into the DIMM sockets.
1-6
You may install varying memory sizes in the DIMM channels. 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.
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.
Chapter 1: Product Introduction

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