Populating Sodimm Sockets; Installing Sodimms - HP t620 PLUS Hardware Reference Manual

Populating SODIMM sockets

There are two SODIMM sockets on the system board. The sockets are labeled DIMM1 and DIMM2.
Item Description
1 SODIMM1 socket
2 SODIMM2 socket
The system operates in single-channel mode.
NOTE: If both SODIMM sockets are populated with dual-sided SODIMMs, the system memory
speed is reduced to 1333 MHz.

Installing SODIMMs

CAUTION:
to drain 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 the following procedures, be sure that you are discharged of static electricity by briefly
touching a grounded metal object. For more information, refer to
on page 42.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage
the module.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as USB flash drives, from the computer.
You must disconnect the power cord and wait approximately 30 seconds for the power
System Board Label
DIMM1
DIMM2
Socket Color
Black
White
Electrostatic discharge
Installing additional memory 17