This document describes the safety instructions for using a Dell OptiPlex computer, including power, battery, cooling, and maintenance, to help users use the computer correctly and ensure the safety of the computer
This manual covers safety guidelines, ergonomic recommendations, and basic usage instructions for Dell OptiPlex N and OptiPlex NX desktop systems. It is intended for both first‑time and experienced users who need to set up, maintain, and operate the computers safely.
The guide also includes regulatory notices, warranty information, and references to additional documentation such as the Getting Started sheet and network administrator resources.
| Power Input | 115 V/60 Hz or 230 V/50 Hz AC |
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Only authorized service technicians and qualified network administrators should remove the computer cover, and users should not attempt to service the system themselves.
Position the monitor and keyboard directly in front of you, keep the monitor at eye level, and use a chair with good lower‑back support.