Power-Supply Leds - IBM NeXtScale nx360 M4 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
- Installed hardware, including PCI and USB information
- Light path diagnostics status
- Microprocessor, input/output hub, and UEFI error logs
- Network interfaces and settings
- 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. Emulex network adapter
2. IMM I2C bus
3. Light path diagnostics panel
4. Memory modules
5. Microprocessors
6. Optical devices (CD or DVD)
7. SAS or SATA drives
See "Running DSA Preboot diagnostic programs" on page 60 for more
information on running the DSA Preboot program on the server.
v Troubleshooting by symptom
These tables list problem symptoms and actions to correct the problems. See
"Troubleshooting by symptom" on page 62 for more information.

Power-supply LEDs

The following minimum configuration is required for the server to start.
v One microprocessor in microprocessor socket 1
v One 2 GB DIMM on the system board
v One power supply
v Power cord
v Four cooling fans
v One PCI riser-card assembly in PCI connector 1
AC power-supply LEDs
Use this information to view AC power-supply LEDs.
The following minimum configuration is required for the DC LED on the power
supply to be lit:
v Power supply
v Power cord
Note: You must turn on the server for the DC LED on the power supply to be lit.
Chapter 3. Troubleshooting
53