Populating Sodimm sockets, Installing SODIMMs

Populating SODIMM sockets

There are two SODIMM sockets on the system board. The sockets are labeled DIMM1 and DIMM2.

Item	Description	System Board Label	Socket Color

1	SODIMM1 socket	DIMM1	Black

2	SODIMM2 socket	DIMM2	White

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: 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-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 Electrostatic discharge

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.

Installing additional memory 17