Hardware Reference Guide OMEN X

Installing system memory
The computer uses double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM) dual
inline memory modules (DIMMs). There are four memory sockets on the system board that can be populated
with up to 32 GB of memory.
For proper system operation, the DIMMs must be 1.2 volt DDR4-SDRAM DIMMs that adhere to the following
specications:
●
Industry-standard 288-pin
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Unbuered non-ECC PC4-19200 DDR4-2400 MT/s-compliant (downgraded to DDR4-2133)
●
Unbuered non-ECC PC4-17000 DDR4-2133 MT/s-compliant
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Support CAS latency 15 DDR4 2133 MT/s (15-15-15 timing)
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Contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specication
The computer supports the following:
●
512-Mbit, 1-Gbit, 2-Gbit, 4-Gbit, and 8-Gbit non-ECC memory technologies
●
Single-sided and double-sided DIMMs
NOTE: The system will not operate properly if you install unsupported DIMMs.
Populating DIMM sockets
There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled
DIMM1, DIMM2, DIMM3, and DIMM4. The DIMM1 and DIMM3 sockets operate in memory channel A. The DIMM2
and DIMM4 sockets operate in memory channel B.
For improved performance, install memory modules in the following order: DIMM 4-2-3-1. Note that DIMM 1
is the slot closest to the processor.
The system will automatically operate in single-channel mode, dual-channel mode, or ex mode, depending
on how the DIMMs are installed.
●
The system will operate in single-channel mode if the DIMM sockets are populated in one channel only.
●
The system will operate in the higher-performing dual-channel mode if the memory capacity of the
DIMM in Channel A is equal to the memory capacity of the DIMM in Channel B.
Installing system memory 19