About this task
Complete the following steps to verify the system board.
Steps
Shut down and disconnect the system
Prerequisites
Establish a connection to the system as described in
Establish a serial management connection to the PowerProtect system
page 14.
About this task
Complete the following steps to shut down and disconnect the system.
Steps
1. Stop the system using the
system poweroff
command to allow the proper shut down of the file system and other system
components. The power down process takes approximately five minutes to complete. The
system poweroff
command
immediately turns the front panel blue LED to amber, and is complete when the front panel LED turns off.
NOTE:
The system fans still run, and NIC port LEDs still flash after running the
system poweroff
command.
2. Open the cable management arms.
3. Label each of the cables as to their connection location. Taking a photograph for reference is also helpful for re-connecting
the cables.
4. Disconnect the AC power cords from the rear of the system.
5. Disconnect all network cables from the rear of the system.
6. Disconnect all SAS cables from the rear of the system.
7. Disconnect the serial console cable.
Remove a power supply
Prerequisites
Follow the safety guidelines listed in
on page 13.
About this task
The technical white paper
Servicing and Replacing Power Supplies for DellEMC PowerEdge R940/R740/R740xd Systems with
Single and Dual CMA Solutions
provides additional details about removing power supplies with the cable management arms
installed on the back of the system.
Steps
1. Disconnect the power cable from the power source and from the PSU you intend to remove, and then remove the cable
from the strap on the PSU handle.
2. Press the release latch and slide the PSU out of the system by using the PSU handle.
106
Replace the system board
