Hp DL120 Manuel d'utilisateur télécharger pdf (Page 29)

Removal and replacement procedures 29

Electrostatic discharge information

An electrostatic discharge (ESD) can damage static-sensitive devices or microcircuitry. Proper

packaging and grounding techniques are necessary precautions to prevent damage. To prevent

electrostatic damage, observe the following precautions:

• Transport products in static-safe containers such as conductive tubes, bags, or boxes.

• Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.

• Cover workstations with approved static-dissipating material. Use a wrist strap connected to the

work surface, and properly grounded (earthed) tools and equipment.

• Keep work area free of nonconductive materials, such as ordinary plastic assembly aids and

foam packing.

• Make sure that you are always properly grounded (earthed) when touching a static-sensitive

component or assembly.

• Avoid touching pins, leads, or circuitry.

• Always place drives with the Printed Circuit Board (PCB) assembly-side down.

• Use conductive field service tools.

Pre-installation procedure

Perform the steps below before you open the server or before you remove or replace any component.

1. Perform data backup.

2. Turn off the server and all the peripherals connected to it.

3. Unplug all cables from the power outlets to avoid exposure to high energy levels that may cause

burns when parts are short circuited by metal objects such as tools or jewelry.

If necessary, label each cable to expedite reassembly.

4. Disconnect all telecommunication cables to avoid exposure to shock hazard from ringing

voltages.

5. Open the server according to the instructions described in the “System covers” section later in

this chapter.

6. Follow the ESD precautions listed previously in this chapter when handling any hardware

component.

IMPORTANT: To streamline the configuration process, read through the entire installation/removal

procedure first and make sure you understand it before you begin.

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Hp DL120 Manuel d'utilisateur Page 29