Memory Module - HP ProDesk 400 G4 Maintenance And Service Manual

Memory module

The computer has two memory module sockets.
CAUTION:
before adding or removing memory modules. Regardless of the power-on 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 may 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 and/or oxidation 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, ensure that you are discharged of static electricity by briefly touching a grounded
metal object.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage
the module.
To remove, replace, or add a memory module:
1. Prepare the computer for disassembly (see
2. Remove the access panel (see
3. Remove the drive cage (see
4. Open both latches (1) of the memory module socket.
5. Remove the memory module (2) from the socket.
Reverse this procedure to install a memory module. Reconfigure the computer, if necessary.
34 Chapter 4 Removal and replacement procedures
You must disconnect the power cord and wait approximately 30 seconds for the power to drain
Access panel on page
Drive cage on page
Preparation for disassembly on page
24).
28).
23).