Lenovo NeXtScale n1200 Installation And Service Manual page 110

1F • 33
1F FAN_Tach_8B: Fan sensor, failure event
was asserted, reading value : %RPM
(Threshold : 1472RPM)
Explanation: Asserted when Fan tach reading is below
threshold RPM.
Severity: Error
User response: Complete the following steps:
If error is not de-asserted after several minutes,
1.
check all ten fans are installed.
Reseat fan module one or two times. If error still
2.
persist, replace fan module.
20 FAN_Tach_9A: Fan sensor, failure event
was asserted, reading value : %RPM
(Threshold : 1472RPM)
Explanation: Asserted when Fan tach reading is below
threshold RPM.
Severity: Error
User response: 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.
21 FAN_Tach_9B: Fan sensor, failure event
was asserted, reading value : %RPM
(Threshold : 1472RPM)
Explanation: Asserted when Fan tach reading is below
threshold RPM.
Severity: Error
User response: 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.
22 FAN_Tach_10A: Fan sensor, failure event
was asserted, reading value : %RPM
(Threshold : 1472RPM)
Explanation: Asserted when Fan tach reading is below
threshold RPM.
Severity: Error
User response: 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.
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Lenovo NeXtScale n1200 Enclosure: Installation and Service Guide
23 FAN_Tach_10B: Fan sensor, failure event
was asserted, reading value : %RPM
(Threshold : 1472RPM)
Explanation: Asserted when Fan tach reading is below
threshold RPM.
Severity: Error
User response: Complete the following steps:
If error is not de-asserted after several minutes,
1.
check all ten fans are installed.
Reseat fan module one or two times. If error still
2.
persist, replace fan module.
30 12V_Sense
Explanation: Asserted when voltage sensed on 12V
power rail is lower than lower criticl threshold
(10.816V) or higher than upper critical threshold (13.248
V)
Severity: Error
User response: Complete the following steps:
1. Reseat FPC module. If 12V_SENSE error is still
asserted, replace FPC module.
31 3V3_Sense
Explanation: Asserted when voltage sensed on 3V
power rail is lower than lower criticl threshold (2.975
V) or higher than upper critical threshold (3.623 V)
Severity: Error
User response: Complete the following steps:
1. Reseat FPC module. If 3V3_SENSE error is still
asserted, replace FPC module.
32 5V_Sense
Explanation: Asserted when voltage sensed on 5V
power rail is lower than lower criticl threshold (4.563
V) or higher than upper critical threshold (5.589 V)
Severity: Error
User response: Complete the following steps:
1. Reseat FPC module. If 5V_SENSE error is still
asserted, replace FPC module.
33 VBAT_Sense
Explanation: Asserted when voltage sensed on coin
battery output voltage is lower than lower criticl
threshold (1.795V)
Severity: Error
User response:
1. Replace coin battery on FPC.