Light Path Diagnostics; Power-Supply Leds - Lenovo NeXtScale nx360 M5 Installation And Service Manual

– Drive health information
– Event logs for ServeRAID controllers and service processors
– IMM2 configuration information
– IMM2 environmental information
– Installed hardware, including PCI and USB information
– LCD system information display panel status
– Microprocessor, input/output 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. Broadcom network adapter
2. Emulex network adapter
3. FusionIO storage
4. IMM I2C bus
5. LCD system information display panel
6. Intel GPU
7. LSI Controller
8. Memory modules
9. Microprocessors
10. Nvidia GPU
11. Optical devices (CD or DVD)
12. SAS or SATA drives
See "Running DSA Preboot diagnostic programs" on page 65 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 67 for more information.

Light path diagnostics

Use this information as an overview of light path diagnostics.
Light path diagnostics is a system of LEDs above the control panel and on various internal components of
the compute node. When an error occurs, LEDs can be lit throughout the compute node to help identify the
source of the error.

Power-supply LEDs

AC power-supply LEDs
Use this information to view AC power-supply LEDs.
.
Chapter 4 Troubleshooting
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