Installing Memory

The computer comes with one double data rate 3 synchronous dynamic random access memory (DDR3-SDRAM) small outline dual inline memory module (SODIMM).

DDR3-SDRAM SODIMM

CAUTION: This product DOES NOT support DDR3 Ultra Low Voltage (DDR3U) memory. The processor is not compatible with DDR3U memory and if you plug DDR3U memory into the system board, it can cause the physical damage to the SODIMM or invoke system malfunction.

For proper system operation, the SODIMM must be:

●industry-standard 204-pin

●unbuffered non-ECC PC3-12800 DDR3-1600 MHz-compliant

●1.5 volt DDR3-SDRAM SODIMMs

The DDR3-SDRAM SODIMM must also:

●support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)

●contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specification In addition, the computer supports:

●512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies

●single-sided and double-sided SODIMMS

●SODIMMs constructed with x8 and x16 devices; SODIMMs constructed with x4 SDRAM are not supported

NOTE: The system will not operate properly if you install an unsupported SODIMM.

Replacing a SODIMM

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before removing or installing a memory module. Regardless of the power-on state, voltage is always supplied to the memory module as long as the computer is plugged into an active AC outlet.

Removing or installing a memory module while voltage is present may cause irreparable damage to the memory module or system board.

The memory module socket has gold-plated metal contacts. When upgrading the memory, it is important to use a memory module 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. For more information, refer to Electrostatic Discharge on page 39.

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.

3.Turn off the computer properly through the operating system, then turn off any external devices.

10 Chapter 2 Hardware Upgrades