Power-Supply Leds - Lenovo NeXtScale nx360 M5 Installation And Service Manual

– 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
– 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 61 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 63 for more information.

Power-supply LEDs

The following minimum configuration is required for the server to start.
• One microprocessor in microprocessor socket 1
• One 2 GB DIMM on the system board
• One power supply
• Power cord
.
Chapter 3 Troubleshooting
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