HP ProDesk 400 G7 SFF Maintenance And Service Manual page 35

IMPORTANT:
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
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
2. Remove the access panel
Replace a memory module:
1. To remove a memory module, open both latches of the memory module socket (1), and then remove the
memory module from the socket (2).
ENWW
You must disconnect the power cord and wait approximately 30 seconds for the power to drain
Electrostatic discharge information on page
(Access panel on page
(Preparation for disassembly on page
21).
12.
21).
Memory modules (DIMMs) 27