Cisco Bug: CSCul29314 - B230M2 has SEL continuously filled with voltage alerts on CPU rails
Last Modified
Mar 07, 2018
Products (1)
- Cisco Unified Computing System
Known Affected Releases
2.1(1a)A
Description (partial)
Symptom: -From SEL logs in UCS-M: 38d | 09/27/2013 11:49:46 | CIMC | Platform alert LED_BLADE_STATUS #0xba | LED color is green | Asserted 38e | 09/27/2013 14:05:35 | CIMC | Voltage P0V75_DDR3_T6GP1 #0x15 | Lower critical - going low | Asserted | Reading 0.64 <= Threshold 0.64 Volts 38f | 09/27/2013 14:05:36 | CIMC | Platform alert LED_BLADE_STATUS #0xba | LED color is amber | Asserted 390 | 09/27/2013 14:05:40 | CIMC | Voltage P0V75_DDR3_T6GP1 #0x15 | Lower critical - going low | Deasserted | Reading 0.66 >= Threshold 0.64 Volts 391 | 09/27/2013 14:05:40 | CIMC | Platform alert LED_BLADE_STATUS #0xba | LED color is green | Asserted 392 | 09/27/2013 15:17:16 | CIMC | Voltage P0V75_DDR3_T6GP1 #0x15 | Lower critical - going low | Asserted | Reading 0.64 <= Threshold 0.64 Volts -Meanwhile IPMI reports all OK: P0V75_DDR3_T1GP1 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T2GP1 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T3GP1 | 0.650 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T4GP1 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T5GP1 | 0.650 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T6GP1 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T7GP1 | 0.679 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T8GP1 | 0.650 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T1GP2 | 0.669 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T2GP2 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T3GP2 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T4GP2 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T5GP2 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T6GP2 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T7GP2 | 0.660 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | P0V75_DDR3_T8GP2 | 0.669 | Volts | OK | 0.601 | 0.640 | na | na | 0.708 | 0.747 | -Checking CIMC IPMI collection via dplug on blade confirms fluctuations: 1da | 10/21/2013 04:07:38 | CIMC | Voltage P0V75_DDR3_T6GP1 #0x15 | Lower critical - going low | Asserted | Reading 0.64 <= Threshold 0.64 Volts 1db | 10/21/2013 04:07:38 | CIMC | Platform alert LED_BLADE_STATUS #0xba | LED color is amber | Asserted 1dc | 10/21/2013 04:07:42 | CIMC | Voltage P0V75_DDR3_T6GP1 #0x15 | Lower critical - going low | Deasserted | Reading 0.67 >= Threshold 0.64 Volts 1dd | 10/21/2013 04:07:43 | CIMC | Platform alert LED_BLADE_STATUS #0xba | LED color is green | Asserted 1de | 10/21/2013 04:58:49 | CIMC | Voltage P0V75_DDR3_T6GP1 #0x15 | Lower critical - going low | Asserted | Reading 0.64 <= Threshold 0.64 Volts Conditions: Working blade, not reported 'inoperable' but SEL continuously filled with voltage alerts.
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