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Maintenance and Component Installation
This chapter provides instructions on installing and replacing main system components. To
prevent compatibility issues, only use components that match the specifications and/or part
numbers given.
Installation or replacement of most components require that power first be removed from the
system. Please follow the procedures given in each section.
3.1 Removing Power
Use the following procedure to ensure that power has been removed from the system. This
step is necessary when removing or installing non hot-swap components or when replacing
a non-redundant power supply.
1. Use the operating system to power down the system.
2. After the system has completely shut-down, disconnect the AC power cord(s) from the
power strip or outlet. (If your system has more than one power supply, remove the AC
power cords from all power supply modules.)
3. Disconnect the power cord(s) from the power supply module(s).
3.2 Accessing the System
Removing System from the Rack
1. Pull the chassis forward out the front of the rack until it stops.
2. Disengage the locking tabs in the chassis rails (push the right-side tab down and the
left-side tab up) while pulling the system out past the locked position.
Removing the Top Cover
The 819U chassis features a removable top cover.
•
Push both release buttons toward the chassis rear and slide the cover toward the rear.
(See following drawing)
Caution: Except for short periods of time, do not operate the server without the cover in place.
The chassis cover must be in place to allow for proper airflow and to prevent overheating.
Chapter 3: Maintenance and Component Installation
Chapter 3
25
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