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.
• 1D : FAN_Tach_7B: 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.
• 1E : FAN_Tach_8A: 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.
• 1F : FAN_Tach_8B: 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.
• 20 : FAN_Tach_9A: Fan sensor, failure event was asserted, reading value : %RPM (Threshold :
1472RPM)
Asserted when Fan tach reading is below threshold RPM.
Severity
214
ThinkSystem SD650 Dual Node DWC Tray and NeXtScale n1200 DWC Enclosure Messages and Codes Reference