Owners Manual

Troubleshooting your system
Safety first — for you and your system
NOTE: Solution validation was performed by using the factory shipped hardware configuration.
Topics:
• Troubleshooting system startup failure
• Troubleshooting external connections
• Troubleshooting the video subsystem
• Troubleshooting a USB device
• Troubleshooting a serial input and output device
• Troubleshooting a NIC
• Troubleshooting a wet system
• Troubleshooting a damaged system
• Troubleshooting the system battery
• Troubleshooting power supply units
• Troubleshooting cooling problems
• Troubleshooting cooling fans
• Troubleshooting system memory
• Troubleshooting a drive or SSD
• Troubleshooting a storage controller
• Troubleshooting expansion cards
• Troubleshooting processors
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.
Troubleshooting external connections
Before troubleshooting any external devices, ensure that all external cables are securely attached to the external connectors on
your system.
● Compare the technical specification of the system with the external device to check the compatibility.
● Check the external device functionality with some other similar system so that we are sure that the device is working fine.
● Check any other similar external device with this system so that we are sure that the system port is working fine.
For any further queries contact, Global Technical Support.
Troubleshooting the video subsystem
Steps
1. Check the cable connections (power and display) to the monitor.
2. Check the video interface cabling from the system to the monitor.
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