HP Pro Tower 480 G9 Desktop PC Maintenance and Service Guide - Page 27

Memory modules (DIMMs

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▲ Loosen the thumbscrew on the rear of the computer (1), slide the panel back, and then lift if off the computer (2). To install the access panel, reverse the removal procedure. Memory modules (DIMMs) To remove the memory modules, use this information and procedures. For a list of available memory modules, see Computer major components on page 5. The memory sockets on the system board are populated with at least one preinstalled memory module. 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. For proper system operation, the DIMMs must adhere to the following specifications: ● Industry-standard 288-pin ● 1.2 volt DDR4-SDRAM memory modules ● DDR4-3200 SDRAM UDIMM ● Mandatory JEDEC SPD information The computer supports the following setups: ● 512 Mbit, 1 Gbit, 2 Gbit, and 4 Gbit non-ECC memory technologies ● Single-sided and double-sided memory modules ● Memory modules constructed with ×8 and ×16 DDR devices; memory modules constructed with ×4 SDRAM are not supported NOTE: Memory modules support data transfer rates up to 3200 MT/s. Actual data rate is determined by system configuration. NOTE: When more than one memory slot is populated, symmetric configurations are required for two DIMMs per channel. A mix of different data transfer rates or memory rank mix within the same channel is not allowed. 20 Chapter 4 Removal and replacement procedures

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▲
Loosen the thumbscrew on the rear of the computer
(1)
, slide the panel back, and then lift if off the
computer
(2)
.
To install the access panel, reverse the removal procedure.
Memory modules (DIMMs)
To remove the memory modules, use this information and procedures.
For a list of available memory modules, see
Computer major components
on page
5
.
The memory sockets on the system board are populated with at least one preinstalled memory module. 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.
For proper system operation, the DIMMs must adhere to the following specifications:
●
Industry-standard 288-pin
●
1.2 volt DDR4-SDRAM memory modules
●
DDR4-3200 SDRAM UDIMM
●
Mandatory JEDEC SPD information
The computer supports the following setups:
●
512 Mbit, 1 Gbit, 2 Gbit, and 4 Gbit non-ECC memory technologies
●
Single-sided and double-sided memory modules
●
Memory modules constructed with ×8 and ×16 DDR devices; memory modules constructed with ×4
SDRAM are not supported
NOTE:
Memory modules support data transfer rates up to 3200 MT/s. Actual data rate is determined by
system configuration.
NOTE:
When more than one memory slot is populated, symmetric configurations are required for two
DIMMs per channel. A mix of different data transfer rates or memory rank mix within the same channel is not
allowed.
20
Chapter 4
Removal and replacement procedures