Users Guide

Table Of Contents
Troubleshooting hardware issues
This section helps you troubleshoot hardware issues in your system.
NOTE: If the issue still persists, contact Dell Technical Support for assistance.
Topics:
Troubleshooting system startup failure
Troubleshooting external connections
Troubleshooting the video subsystem
Troubleshooting a USB device
Troubleshooting a serial Input Output device
Troubleshooting a NIC
Troubleshooting a wet system
Troubleshooting a damaged system
Troubleshooting the system battery
Troubleshooting cooling problems
Troubleshooting cooling fans
Troubleshooting an internal USB key
Troubleshooting a micro SD card
Troubleshooting expansion cards
Troubleshooting processors
Troubleshooting a storage controller
Troubleshooting hard drives
Troubleshooting an optical drive
Troubleshooting a tape backup unit
Troubleshooting no power issues
Troubleshooting power supply units
Troubleshooting RAID
Troubleshooting thermal issue
Input/Output errors while reseating SAS IOM storage sled on hardware configurations
Troubleshooting system startup failure
If you boot the system to the BIOS boot mode after installing an operating system from the UEFI Boot Manager, the system
stops responding. To avoid this issue, you must boot to the same boot mode in which you installed the operating system.
For all other startup issues, note the system messages that appear on the screen.
No bootable device found
Troubleshooting a no bootable device found issue.
Resolution: To resolve the issue, follow these steps:
1. Switch off the system.
2. Disconnect all power cables to the servers power supply units.
3. Remove the system cover.
4. Reseat all the cables of hard drive backplane at both ends.
5. Reseat all the drives.
6. Replace the system cover.
7. Connect the power cables to the servers power supply units.
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