Lenovo ThinkSystem SD650 Manual page 215

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Asserted when Fan tach reading is below threshold RPM.
Severity
Critical
Serviceable
Automatically notify support
User Action
Complete the following steps:
1. If error is not de-asserted after several minutes, check all ten fans are installed.
2. Reseat fan module one or two times. If error still persist, replace fan module.
• 13 : FAN_Tach_2B: Fan sensor, failure event was asserted, reading value : %RPM (Threshold :
1472RPM)
Asserted when Fan tach reading is below threshold RPM.
Severity
Critical
Serviceable
Automatically notify support
User Action
Complete the following steps:
1. If error is not de-asserted after several minutes, check all ten fans are installed.
2. Reseat fan module one or two times. If error still persist, replace fan module.
• 14 : FAN_Tach_3A: Fan sensor, failure event was asserted, reading value : %RPM (Threshold :
1472RPM)
Asserted when Fan tach reading is below threshold RPM.
Severity
Critical
Serviceable
Automatically notify support
User Action
Complete the following steps:
1. If error is not de-asserted after several minutes, check all ten fans are installed.
2. Reseat fan module one or two times. If error still persist, replace fan module.
• 15 : FAN_Tach_3B: Fan sensor, failure event was asserted, reading value : %RPM (Threshold :
1472RPM)
Asserted when Fan tach reading is below threshold RPM.
Severity
Critical
Serviceable
Automatically notify support
User Action
.
211
Chapter 5
FPC events

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