User Service Guide, Third Edition - HP Integrity cx2620 Server

Follow the listed procedures to ensure safe handling of components, to prevent injury, and to
prevent damage to the server:
• If removing or installing a hot-swappable component, follow the instructions provided in
this guide.
• If installing a hot-swappable component when power is present (fans are running), reinstall
the server cover immediately to prevent overheating.
• If installing an assembly that is not hot-swappable, disconnect the power cables from the
server external power connectors.
WARNING! Ensure that the system is powered off and all power sources are disconnected
from the server prior to removing or installing server hardware unless you are removing
or installing a hot-swappable or hot-pluggable component.
Voltages are present at various locations within the server whenever a DC power source is
connected. This voltage is present even when the main power switch is turned off.
Failure to observe this warning can result in personal injury or damage to equipment.
• Do not wear loose clothing that can snag or catch on the server or on other components.
• Do not wear clothing subject to static charge build up, such as wool or synthetic materials.
• If installing an internal assembly, wear an antistatic wrist strap and use a grounding mat,
such as those included in the Electrically Conductive Field Service Kit (P/N 9300-1609)
• Handle accessory boards and components by the edges only. Do not touch any metal-edge
connectors or any electrical components on accessory boards
Accessing a Rack-Mounted Server
The server is designed to be rack mounted. The following procedure explains how to access a
server that is mounted in an approved rack.
WARNING! Ensure that all antitip features (front and rear antitip feet installed; adequate ballast
properly placed; and so on) are employed prior to extending the server.
Installing Components When the Server Is in a Rack
Install power supplies, fans, and disks when the server is fully inserted into a rack. Only front
and rear access is required.
To install components when the server is in a rack, follow these steps:
WARNING! Ensure that the system is powered off and all power sources are disconnected
from the server prior to removing or installing server hardware.
Voltages are present at various locations within the server whenever a DC power source is
connected. This voltage is present even when the main power switch is turned off.
Failure to observe this warning can result in personal injury or damage to equipment.
NOTE: Ensure that there is enough area (approximately 1.5 meters [5 ft.]) to fully extend the
server from the front of the rack to work on it.
To access a rack-mounted server, follow these steps:
1. Power off and disconnect system power. Disconnect power at the DC source end of the
power cables, using the disconnect device that is part of the rack or facility power system.
2. Label and disconnect all cables from the unit rear panel connectors.
3. Remove or loosen the screws that fasten the server to the rack.
154 Removing and Replacing Components