HP EliteDesk 705 G3 Microtower PC User Manual download pdf (Page 18)

largest amount of memory is spread between the two channels. If one channel will have more memory

than the other, the larger amount should be assigned to Channel A. For example, if you are populating

the sockets with one 2 GB DIMM, and three 1 GB DIMMs, Channel A should be populated with the 2 GB

DIMM and one 1 GB DIMM, and Channel B should be populated with the other two 1 GB DIMMs. With this

conguration, 4 GB will run as dual channel and 1 GB will run as single channel.

●

In any mode, the maximum operational speed is determined by the slowest DIMM in the system.

Installing DIMMs

IMPORTANT: 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

these procedures, ensure that you are discharged of static electricity by

briey touching a grounded metal

object. For more information, refer to Electrostatic discharge on page 37.

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 compact discs or USB ash drives, from the computer.

3. Turn o the computer properly through the operating system, and turn o any external devices.

4. Disconnect the power cord from the AC outlet and disconnect any external devices.

IMPORTANT: 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.

5. Remove the computer access panel.

WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system components

to cool before touching.

12 Chapter 2 Hardware upgrades

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HP EliteDesk 705 G3 Microtower PC User Manual Page 18