HP Engage Flex Pro-C G2 Maintenance and Service Guide - Page 36

Remove the access panel see, Before replacing the memory modules, follow these steps

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● If mixing dual-ranked and single-ranked DIMMs, load the dual-ranked DIMMs in a slots 1 and 2 and load single-ranked DIMMs in slots 3 and 4. NOTE: Single-channel and unbalanced dual-channel memory configurations results in inferior graphics performance. IMPORTANT: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present can cause irreparable damage to the memory modules or system board. The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important to use memory modules with gold-plated metal contacts to prevent corrosion, oxidation, or both resulting from having incompatible metals in contact with each other. Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, be sure that you are discharged of static electricity by briefly touching a grounded metal object. For more information, see Electrostatic discharge information on page 10. When handling a memory module, be careful not to touch any of the contacts. Doing so can damage the module. Before replacing the memory modules, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 18). 2. Remove the access panel (see Access panel on page 19). 3. Remove the fan and duct assembly (see Fan and duct assembly on page 28). Replace a memory module: 1. To remove a memory module, open both latches (1) of the memory module socket, and then remove the memory module (2) from the socket. 30 Chapter 4 Removal and replacement procedures

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●
If mixing dual-ranked and single-ranked DIMMs, load the dual-ranked DIMMs in a slots 1 and 2 and
load single-ranked DIMMs in slots 3 and 4.
NOTE:
Single-channel and unbalanced dual-channel memory configurations results in inferior
graphics performance.
IMPORTANT:
You must disconnect the power cord and wait approximately 30 seconds for the power
to drain before adding or removing memory modules. Regardless of the power state, voltage is always
supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or
removing memory modules while voltage is present can cause irreparable damage to the memory
modules or system board.
The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is
important to use memory modules with gold-plated metal contacts to prevent corrosion, oxidation, or
both resulting from having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before
beginning these procedures, be sure that you are discharged of static electricity by briefly touching a
grounded metal object. For more information, see
Electrostatic discharge information
on page
10
.
When handling a memory module, be careful not to touch any of the contacts. Doing so can damage
the module.
Before replacing the memory modules, follow these steps:
1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
18
).
2.
Remove the access panel (see
Access panel
on page
19
).
3.
Remove the fan and duct assembly (see
Fan and duct assembly
on page
28
).
Replace a memory module:
1.
To remove a memory module, open both latches
(1)
of the memory module socket, and then remove
the memory module
(2)
from the socket.
30
Chapter 4
Removal and replacement procedures