Specifications

B
Sensor alarm troubleshooting
137
28h +1.0V_FRONT Minor voltage high Voltage over 1.05V threshold;
CPM will not go into M4 state.
1
Monitor to see if the alarm worsens.
Major voltage high Voltage over 1.10V threshold;
CPM will not go into M4 state.
1
Monitor to see if the alarm is persistent. If persistent,
remove CPM and contact customer support.
Critical voltage high Voltage over 1.15V threshold;
CPM will not go into M4 state.
1
Remove CPM and contact customer support.
Minor voltage low Voltage under 0.95V threshold;
CPM will not go into M4 state.
1
Monitor to see if the alarm worsens.
Major voltage low Voltage under 0.90V threshold;
CPM will not go into M4 state.
1
Monitor to see if the alarm is persistent. If persistent,
remove CPM and contact customer support.
Critical voltage low Voltage at 0V threshold; CPM will
not go into M4 state.
1
Remove CPM and contact customer support.
29h 0.75V_DDR3 Minor voltage high Voltage over 0.79V threshold;
CPM will not go into M4 state.
1
Monitor to see if the alarm worsens.
Major voltage high Voltage over 0.83V threshold;
CPM will not go into M4 state.
1
Monitor to see if the alarm is persistent. If persistent,
remove CPM and contact customer support.
Critical voltage high Voltage over 0.87V threshold;
CPM will not go into M4 state.
1
Remove CPM and contact customer support.
Minor voltage low Voltage under 0.73V threshold;
CPM will not go into M4 state.
1
Monitor to see if the alarm worsens.
Major voltage low Voltage under 0.68V threshold;
CPM will not go into M4 state.
1
Monitor to see if the alarm is persistent. If persistent,
remove CPM and contact customer support.
Critical voltage low Voltage at 0V threshold; CPM will
not go into M4 state.
1
Remove CPM and contact customer support.
2Ah OEM Payload
Reset
N/A Payload cold reset from
watchdog BIOS/OS event or
reboot
Investigate why system reset, look at the events in
the SEL, and monitor CPM.
2Bh OEM Active Boot
Flash
Event only CFD watchdog timed out,
secondary flash bank was set to
active.
Investigate watchdog timeout.
Flash bank was set externally. Customer-specific.
2Ch BMC Watchdog Event only Status only No action required; information only.
Payload cold reset Investigate watchdog timeout. Check
communications between the watchdog and IPMC.
Payload power down
Payload power cycle
Pre-timeout interrupt
2Dh IPMC Watchdog N/A Missing strobe from the IPMC to
the IPMC FPGA.
Monitor to see if the event occurs again or becomes
frequent.
2Eh ATCA Physical
IPMB
N/A I
2
C data or clock lines problem Investigate bus communication error. Possibly
remove CPM and reinsert.
2Fh ATCA Physical
IPMB-L
N/A I
2
C data or clock lines problem If IPMB-L bus does not recover on its own, hot swap
CPM, and/or remove AMC until problem is resolved.
30h NMI N/A NMI generated Investigate error.
Table 38. Sensor alarms and recommended actions (sheet 13 of 14)
Number Name Alarm level Possible errors or faults Recommendation