Lenovo ThinkSystem SR630 V4 - Page 50

1 Leakage detection sensor LED (green)
Descrip-
tion
• On: No liquid leakage or cable break alert.
• Slow blinking (about two flashes per second): Cable break alert.
• Fast blinking (about five flashes per second): Liquid leak alert.
Action
• If the cable breaks, replace the NeptAir module or NeptCore module (trained technicians only).
• If liquid leakage happens:
– For NeptAir module problem determination and troubleshooting, see
“Liquid cooling module
problems (NeptAir module)” on page 315
.
– For NeptCore module problem determination and troubleshooting, see
“Liquid cooling module
problems (NeptCore module)” on page 317
.
Power-supply-unit LEDs
This topic provides information about various power supply unit LED status and corresponding action
suggestions.
The following minimal configuration is required for the server to start:
• One processor in processor socket 1
• One memory module in slot 7
• One power supply unit
• One HDD/SSD drive, one M.2 drive (if OS is needed for debugging)
• Three system fan-packs
The following table describes the problems that are indicated by various combinations of the power-supply
unit LEDs and the power-on LED and suggested actions to correct the detected problems.
Figure 20. LEDs on a CRPS Premium power supply unit
40 ThinkSystem SR630 V4 User Guide