Recommended Tools; Need To Know; Common Error Messages - Dell Precision 7920 Rack Owner's Manual

Recommended tools

Table 2. Recommended tools and optional tools
Recommended tools
• Key to the system keylock
• #1 and #2 Phillips screwdriver
• T30 and T8 Torx screwdrivers
• Wrist-grounding strap connected to the ground
• ESD Mat

Need to know

Before you begin servicing the system, you must read the following information:
• Critical callouts
• Common error codes
• Version control for BIOS/ Firmware/ Software
• Startup/Shutdown sequence

Common error messages

The Event Message Reference contains the error and event information generated by firmware and other agents that monitor system
components. These events might be logged, presented to the user on one of the system management consoles, or both logged and
displayed.
Each event consists of the following fields:
16 Removing and installing components
Optional tools
• Needle-nose pliers to disconnect cables and connectors in hard-
to-reach locations
• Small flat-head screwdriver to disconnect small cables from
boards