Users Guide
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 server’s 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 server’s power supply units.
8. Power on the system
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