RTC Battery Fault
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- Category:
- fas-systems
- Specialty:
- HW
- Last Updated:
- 11/16/2022, 1:44:12 PM
Applies to
- FAS/AFF Platforms
- Real-time clock (RTC) coin-cell battery
Issue
- Node and Chassis fault LEDs are illuminated with no clear indication of the fault
- Or the following EMS message will be generated, and a non-critical fault will be reported against the battery:
Tue Sep 4 15:05:29 CEST [NODE1:monitor.chassisPower.degraded:warning]: Chassis power is degraded: RTC Battery is in WARN LOW state current voltage is 2774 mV, normal low is 2800 mV
SP-LATEST-IPMIlog show P3.3V Batt is [warnlow]
P3.3V Batt warnlow 2660 mV 2537 mV 2695 mV 3307 mV 3447 mV
SP-LATEST-SYSLOGlog show[rtcWarnLowPower]
BMC env_mgr[1534]: Payload EMS: EMS_monitor_rtcWarnLowPower(2660 mV)
- BMC
events allshowsP3.3V Batt is critical low.
BMC env_mgr[1461]: P3.3V Batt is critical low
- From the BMC/SP we will see the following non-critical condition:
Sensor Name | Current | Unit | Status | LCR | LNC | UNC | UCR
-----------------+------------+------------+------------+-----------+-----------+-----------+-----------
PCM_Status | 0x0 | discrete | Power Good | na | na | na | na
Attn_Sensor1 | 0x0 | discrete | Asserted | na | na | na | na
CPU-1_DTS_Temp | -54.000 | degrees C | ok | na | na | -10.000 | 0.000
CPU-2_DTS_Temp | -57.000 | degrees C | ok | na | na | -10.000 | 0.000
CPU0_PVCCP | 1.750 | Volts | ok | 1.580 | 1.670 | 1.920 | 2.010
CPU1_PVCCP | 1.750 | Volts | ok | 1.580 | 1.670 | 1.920 | 2.010
DDR4_PVDDQ_AB | 1.230 | Volts | ok | 1.050 | 1.110 | 1.280 | 1.340
DDR4_PVDDQ_CD | 1.220 | Volts | ok | 1.050 | 1.110 | 1.280 | 1.340
DDR4_PVDDQ_EF | 1.220 | Volts | ok | 1.050 | 1.110 | 1.280 | 1.340
DDR4_PVDDQ_GH | 1.220 | Volts | ok | 1.050 | 1.110 | 1.280 | 1.340
DDR4_PVPP_AB | 2.640 | Volts | ok | 2.300 | 2.440 | 2.800 | 2.940
DDR4_PVPP_CD | 2.600 | Volts | ok | 2.300 | 2.440 | 2.800 | 2.940
DDR4_PVPP_EF | 2.600 | Volts | ok | 2.300 | 2.440 | 2.800 | 2.940
DDR4_PVPP_GH | 2.600 | Volts | ok | 2.300 | 2.440 | 2.800 | 2.940
DDR4_PVTT_AB | 0.610 | Volts | ok | 0.520 | 0.550 | 0.640 | 0.670
DDR4_PVTT_CD | 0.610 | Volts | ok | 0.520 | 0.550 | 0.640 | 0.670
DDR4_PVTT_EF | 0.610 | Volts | ok | 0.520 | 0.550 | 0.640 | 0.670
DDR4_PVTT_GH | 0.610 | Volts | ok | 0.520 | 0.550 | 0.640 | 0.670
DIMM-1-4_Temp | 26.000 | degrees C | ok | 0.000 | 5.000 | 80.000 | 85.000
DIMM-13-16_Temp | 26.000 | degrees C | ok | 0.000 | 5.000 | 80.000 | 85.000
DIMM-5-8_Temp | 26.000 | degrees C | ok | 0.000 | 5.000 | 80.000 | 85.000
DIMM-9-12_Temp | 26.000 | degrees C | ok | 0.000 | 5.000 | 80.000 | 85.000
HotSwap_Current | 29.250 | Amps | ok | 0.000 | 2.000 | 55.000 | 60.000
HotSwap_VOUT | 11.940 | Volts | ok | 10.560 | 11.160 | 12.840 | 13.440
P0V9_SB | 0.900 | Volts | ok | 0.790 | 0.830 | 0.960 | 1.000
P1V2_SB | 1.200 | Volts | ok | 1.050 | 1.110 | 1.280 | 1.340
P1V8_SB | 1.800 | Volts | ok | 1.580 | 1.670 | 1.920 | 2.010
P2V5_SB | 2.500 | Volts | ok | 2.200 | 2.320 | 2.660 | 2.800
P3V3 | 3.280 | Volts | ok | 2.900 | 3.060 | 3.520 | 3.680
P3V3_SB | 3.280 | Volts | ok | 2.900 | 3.060 | 3.520 | 3.680
P3V3_SB_SQ | 3.300 | Volts | ok | 2.900 | 3.060 | 3.520 | 3.680
P3V_BATT | 2.840 | Volts | nc | 2.720 | 2.880 | 3.300 | 3.460
