Troubleshooting your system, Safety first—for you and your system, External connections – Dell PowerVault 715N (Rackmount NAS Appliance) User Manual
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Troubleshooting Your System
Dell™ PowerVault™ 715N Systems Installation and Troubleshooting Guide
Safety First—For You and Your System
Checking Specific System Problems
Removing and Replacing the Front Bezel
Removing and Replacing the System Cover
Troubleshooting a Damaged System
Troubleshooting the System Battery
Troubleshooting the Power Supply
Troubleshooting the Cooling Fan
Troubleshooting an Expansion Card
Troubleshooting the System Board
If your system is not working as expected, begin troubleshooting using the procedures in this section. This section guides
you through initial checks and procedures that can solve basic system problems and provides troubleshooting procedures
for components inside the system. Before you start any of the procedures in this section, perform the following steps:
Read the "Safety Instructions" in your System Information document.
Read "
" for information about running diagnostics.
NOTE:
To perform the troubleshooting tasks, you can use the console redirection function on the serial port
(COM1). See the System Administrator's Guide for more information about console redirection.
Safety First—For You and Your System
The procedures in this guide require that you remove the cover and work inside the system. While working inside the
system, do not attempt to service the system except as explained in this guide and elsewhere in Dell documentation.
Always follow the instructions closely. Make sure to review all of the procedures in "Safety Instructions" in your System
Information document.
Working inside the system is safe—if you observe the following precautions.
CAUTION:
The power supplies in this system produce high voltages and energy hazards, which can
cause bodily harm. Only trained service technicians are authorized to remove the system cover and
access any of the components inside the system.
CAUTION:
See "Protecting Against Electrostatic Discharge" in the Safety Instructions in your System
Information document before performing any procedure that requires you to open the cover.
External Connections
Improperly set switches, controls, and loose or improperly connected cables are the most likely source of problems for the
system or any peripherals. A quick check of all the switches, controls, and cable connections can easily solve these
problems. See your User's Guide for the back-panel features and connectors.