Lenovo ThinkSystem D2 Manual page 15

Severity: Critical
User Action:
1. If critical is not de-asserted after several minutes, check all five fans are installed.
2. Reseat fan module a couple of times. If error still persist, replace fan module.
• 04010216: FAN_TACH_4A: Fan sensor, critical event was asserted, reading value %RPM (Threshold
%RPM)
Asserted when Fan tach reading is below error threshold RPM.
Severity: Critical
User Action:
1. If critical is not de-asserted after several minutes, check all five fans are installed.
2. Reseat fan module a couple of times. If error still persist, replace fan module.
• 04010217: FAN_TACH_4B: Fan sensor, critical event was asserted, reading value %RPM (Threshold
%RPM)
Asserted when Fan tach reading is below error threshold RPM.
Severity: Critical
User Action:
1. If critical is not de-asserted after several minutes, check all five fans are installed.
2. Reseat fan module a couple of times. If error still persist, replace fan module.
• 04010218: FAN_TACH_5A: Fan sensor, critical event was asserted, reading value %RPM (Threshold
%RPM)
Asserted when Fan tach reading is below error threshold RPM.
Severity: Critical
User Action:
1. If critical is not de-asserted after several minutes, check all five fans are installed.
2. Reseat fan module a couple of times. If error still persist, replace fan module.
• 04010219: FAN_TACH_5B: Fan sensor, critical event was asserted, reading value %RPM (Threshold
%RPM)
Asserted when Fan tach reading is below error threshold RPM.
Severity: Critical
User Action:
1. If critical is not de-asserted after several minutes, check all five fans are installed.
2. Reseat fan module a couple of times. If error still persist, replace fan module.
• 040701CA: FAN_FFS: Fan sensor, transition to Non-Critical from OK was asserted.
All system fans run at full speed.
Severity: Warning
User Action:
1. Ensure the room temperature remains at the required level.
2. Ensure all fan modules are installed and operating properly.
• 040800B0: FAN1_NO_PRESENT: Fan sensor, Device Removed / Device Absent was asserted.
Indicated fan module is missing from the fan slot
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Chapter 2 SMM2 events