HP EliteDesk 800 G2 Maintenance and Service Guide - Page 33

Memory, DIMMs, DDR4-SDRAM DIMMs, Populating DIMM sockets

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Memory Description 16-GB, PC4-17000 8-GB, PC4-17000 4-GB, PC4-17000 The computer comes with double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM) dual inline memory modules (DIMMs). DIMMs The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 64-GB of memory configured in a high-performing dual channel mode. DDR4-SDRAM DIMMs For proper system operation, the DIMMs must be: ● industry-standard 288-pin ● unbuffered non-ECC PC4-17000 DDR4-2133 MHz-compliant ● 1.2 volt DDR4-SDRAM DIMMs The DIMMs must also: ● support CAS latency 15 DDR4 2133 MHz (15-15-15 timing) ● contain the mandatory JEDEC SPD information In addition, the computer supports: ● 512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies ● single-sided and double-sided DIMMs ● DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported 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. Sockets DIMM1 and DIMM2 operate in memory channel B. Sockets DIMM3 and DIMM4 operate in memory channel A. The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending on how the DIMMs are installed. NOTE: Single channel and unbalanced dual channel memory configurations will result in inferior graphics performance. Memory 23

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Memory
Description
16-GB, PC4-17000
8-GB, PC4-17000
4-GB, PC4-17000
The computer comes with double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM)
dual inline memory modules (DIMMs).
DIMMs
The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These
memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory
support, you can populate the system board with up to 64-GB of memory
configured
in a high-performing
dual channel mode.
DDR4-SDRAM DIMMs
For proper system operation, the DIMMs must be:
●
industry-standard 288-pin
●
unbuffered
non-ECC PC4-17000 DDR4-2133 MHz-compliant
●
1.2 volt DDR4-SDRAM DIMMs
The DIMMs must also:
●
support CAS latency 15 DDR4 2133 MHz (15-15-15 timing)
●
contain the mandatory JEDEC SPD information
In addition, the computer supports:
●
512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies
●
single-sided and double-sided DIMMs
●
DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported
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. Sockets DIMM1 and DIMM2 operate in memory channel B. Sockets DIMM3
and DIMM4 operate in memory channel A.
The system will automatically operate in single channel mode, dual channel mode, or
flex
mode, depending
on how the DIMMs are installed.
NOTE:
Single channel and unbalanced dual channel memory
configurations
will result in inferior graphics
performance.
Memory
23