Dell PowerEdge R940 EMC Installation and Service Manual - Page 66

Before working inside your system, Recommended tools, Optional front bezel

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NOTE: It is recommended that you always use an antistatic mat and antistatic strap while working on components inside the system. CAUTION: To ensure proper operation and cooling, all bays in the system and system fans must be always populated with a component or a blank. Before working inside your system Prerequisites Follow the safety guidelines listed in Safety instructions on page 65. Steps 1. Turn off the system, including all attached peripherals. 2. Disconnect the system from the electrical outlet and disconnect the peripherals. 3. Remove the system cover. After working inside your system Prerequisites Follow the safety guidelines listed in Safety instructions on page 65. Steps 1. Install the system cover. 2. Reconnect the peripherals and connect the system to the electrical outlet. 3. Turn on the attached peripherals and then turn on the system. Recommended tools You need the following tools to perform the removal and installation procedures: • Key to the bezel lock The key is required only if your system includes a bezel. • Phillips #1 screwdriver • Phillips #2 screwdriver • Torx #T30 screwdriver • Torx #T8 screwdriver • Wrist grounding strap You need the following tools to assemble the cables for a DC power supply unit: • AMP 90871-1 hand-crimping tool or equivalent • Tyco Electronics 58433-3 or equivalent • Wire-stripper pliers to remove insulation from size 10 AWG solid or stranded, insulated copper wire NOTE: Use alpha wire part number 3080 or equivalent (65/30 stranding). Optional front bezel Removing the optional front bezel Prerequisites Follow the safety guidelines listed in Safety instructions on page 65. 66 Installing and removing system components

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NOTE:
It is recommended that you always use an antistatic mat and antistatic strap while working on components inside
the system.
CAUTION:
To ensure proper operation and cooling, all bays in the system and system fans must be always populated
with a component or a blank.
Before working inside your system
Prerequisites
Follow the safety guidelines listed in
Safety instructions
on page 65.
Steps
1.
Turn off the system, including all attached peripherals.
2.
Disconnect the system from the electrical outlet and disconnect the peripherals.
3.
Remove the system cover.
After working inside your system
Prerequisites
Follow the safety guidelines listed in
Safety instructions
on page 65.
Steps
1.
Install the system cover.
2.
Reconnect the peripherals and connect the system to the electrical outlet.
3.
Turn on the attached peripherals and then turn on the system.
Recommended tools
You need the following tools to perform the removal and installation procedures:
•
Key to the bezel lock
The key is required only if your system includes a bezel.
•
Phillips #1 screwdriver
•
Phillips #2 screwdriver
•
Torx #T30 screwdriver
•
Torx #T8 screwdriver
•
Wrist grounding strap
You need the following tools to assemble the cables for a DC power supply unit:
•
AMP 90871-1 hand-crimping tool or equivalent
•
Tyco Electronics 58433-3 or equivalent
•
Wire-stripper pliers to remove insulation from size 10 AWG solid or stranded, insulated copper wire
NOTE:
Use alpha wire part number 3080 or equivalent (65/30 stranding).
Optional front bezel
Removing the optional front bezel
Prerequisites
Follow the safety guidelines listed in
Safety instructions
on page 65.
66
Installing and removing system components