Dell PowerEdge R740xd2 EMC Installation and Service Manual - Page 46

Before working inside your system, After working inside your system, Recommended tools

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CAUTION: Do not operate the system without the cover for a duration exceeding five minutes. Operating the system without the system cover can result in component damage. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product. 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. NOTE: It is recommended that you always use an antistatic mat and antistatic strap while working on components inside the system. CAUTION: Keep hands clear off the rotating fan blades of the high performance fans, as it may cause serious injury or cuts. Ensure system is powered off before servicing. Before working inside your system Prerequisites Follow the safety guidelines listed in Safety instructions. Steps 1. Power off the system and all attached peripherals. 2. Disconnect the system from the electrical outlet, and disconnect the peripherals. After working inside your system Prerequisites Follow the safety guidelines listed in Safety instructions. Steps 1. Reconnect the peripherals and connect the system to the electrical outlet. 2. Power on the attached peripherals and then power 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 #T15 screwdriver • 5mm hex nut screwdriver • Plastic scribe • 1/4 inch flat blade screwdriver • Wrist grounding strap connected to the ground • ESD mat 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 46 Installing and removing system components

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CAUTION:
Do not operate the system without the cover for a duration exceeding five minutes. Operating the system
without the system cover can result in component damage.
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform troubleshooting and
simple repairs as authorized in your product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow
the safety instructions that are shipped with your product.
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.
NOTE:
It is recommended that you always use an antistatic mat and antistatic strap while working on components inside
the system.
CAUTION:
Keep hands clear off the rotating fan blades of the high performance fans, as it may cause serious injury or
cuts. Ensure system is powered off before servicing.
Before working inside your system
Prerequisites
Follow the safety guidelines listed in
Safety instructions
.
Steps
1.
Power off the system and all attached peripherals.
2.
Disconnect the system from the electrical outlet, and disconnect the peripherals.
After working inside your system
Prerequisites
Follow the safety guidelines listed in
Safety instructions
.
Steps
1.
Reconnect the peripherals and connect the system to the electrical outlet.
2.
Power on the attached peripherals and then power 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 #T15 screwdriver
•
5mm hex nut screwdriver
•
Plastic scribe
•
1/4 inch flat blade screwdriver
•
Wrist grounding strap connected to the ground
•
ESD mat
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
46
Installing and removing system components