IBM System x3550 M4 Installation And Service Manual page 567

81010204-1d01xxxx Numeric sensor [NumericSensorElementName] going low (lower critical) has deasserted. (Fan
1A Tach)
Explanation: This message is for the use case when an implementation has detected a Lower Critical sensor going
low has deasserted.
May also be shown as 810102041d01xxxx or 0x810102041d01xxxx
Severity: Info
Alert Category: Critical - Fan Failure
Serviceable: No
CIM Information: Prefix: PLAT and ID: 0481
SNMP Trap ID: 11
Automatically notify Support: No
User response: No action; information only. Fan 1B Tach :
81010204-1d02xxxx Numeric sensor [NumericSensorElementName] going low (lower critical) has deasserted. (Fan
2A Tach)
Explanation: This message is for the use case when an implementation has detected a Lower Critical sensor going
low has deasserted.
May also be shown as 810102041d02xxxx or 0x810102041d02xxxx
Severity: Info
Alert Category: Critical - Fan Failure
Serviceable: No
CIM Information: Prefix: PLAT and ID: 0481
SNMP Trap ID: 11
Automatically notify Support: No
User response: No action; information only. Fan 2B Tach :
81010204-1d03xxxx Numeric sensor [NumericSensorElementName] going low (lower critical) has deasserted. (Fan
3A Tach)
Explanation: This message is for the use case when an implementation has detected a Lower Critical sensor going
low has deasserted.
May also be shown as 810102041d03xxxx or 0x810102041d03xxxx
Severity: Info
Alert Category: Critical - Fan Failure
Serviceable: No
CIM Information: Prefix: PLAT and ID: 0481
SNMP Trap ID: 11
Automatically notify Support: No
User response: No action; information only. Fan 3B Tach :
81010204-1d01xxxx • 81010204-1d03xxxx
Appendix A. Integrated management module II (IMM2) error messages
549