Light Path Diagnostics - Lenovo x3650 M4 BD 5466 Installation And Service Manual

For additional information, see "Dynamic System Analysis" on page 118 and Appendix C "DSA
diagnostic test results" on page 743.
– DSA Preboot
DSA Preboot diagnostic program is stored in the integrated USB memory on the server. DSA Preboot
collects and analyzes system information to aid in diagnosing server problems, as well as offering a
rich set of diagnostic tests of the major components of the server. DSA Preboot collects the following
information about the server:
– Drive health information
– Event logs for ServeRAID controllers and service processors
– IMM2 configuration information
– IMM2 environmental information
– Installed hardware, including PCI and USB information
– Light path diagnostics status
– Microprocessor, input/out hub, and UEFI error logs
– Network interfaces and settings
– Option card driver and firmware information
– RAID controller configuration
– Service processor (integrated management module) status and configuration
– System configuration
– Vital product data, firmware, and UEFI configuration
DSA Preboot also provides diagnostics for the following system components (when they are installed):
1. Network adapter
2. IMM 12C bus
3. Lightpath diagnostics panel
4. Memory modules
5. Microprocessors
6. Optical devices (CD or DVD)
7. SAS or SATA drives
8. Tape drives (SCSI)
9. LSI controller
10. Broadcom network adapter
11. FusionIO storage
12. Intel GPU
13. Nvidia GPU
See "Running the DSA Preboot diagnostic programs" on page 119 for more information on running the
DSA Preboot program on the server.
• Troubleshooting by symptom
These tables list problem symptoms and actions to correct the problems. See "Troubleshooting by
symptom" on page 121 for more information.

Light path diagnostics

Light path diagnostics is a system of LEDs on various external and internal components of the server
that leads you to the failed component.
.
Chapter 4 Troubleshooting
113