System Shutdown; Voltage Related System Shutdown; Temperature Related System Shutdown; Voltage Related Shutdown Messages And Actions - IBM TotalStorage 200 Service Manual

System shutdown

Refer to Table 13, Table 14, Table 15 on page 40, Table 16 on page 40, and
Table 17 on page 40, when experiencing system shutdown related to voltage or
temperature problems.

Voltage related system shutdown

Table 13 describes voltage related system shutdowns, their meanings, and
suggested actions.
Table 13. Voltage related shutdown messages and actions
Message
System shutoff due to X
current over max value
System shutoff due to X
current over min value
System shutoff due to X V
over voltage
System shutoff due to X V
under voltage
System shutoff due to VRM
X over voltage

Temperature related system shutdown

Table 14 describes temperature-related shutdown messages and suggested actions.
Table 14. Temperature related shutdown messages and suggested actions
Message
System shutoff due to
board over temperature
System shutoff due to CPU
X over temperature
System shutoff due to CPU
X under temperature
System shutoff due to
DASD temperature (sensor
X)
System shutoff due to high
ambient temperature
Meaning
Level-critical; system drawing
too much current on voltage
X bus
Level-critical; current on
voltage bus X under
minimum value
Level-critical; system shutoff
due to X supply over voltage
Level-critical system shutoff
due to X supply under
voltage
Meaning
Level-critical; board is over
temperature
Level-critical; CPU X is over
temperature
Level-critical; CPU X is under
temperature
Level-critical; DASD area
reported temperature outside
recommended operating
range
Level-critical; high ambient
temperature
Suggested Action
See "Power checkout" on page 11.
See "Power checkout" on page 11.
1. Check power supply connectors
2. Replace power supply
3. Replace power backplane
1. Check power supply connectors.
2. Replace power supply
3. Replace power backplane
1. Replace power supply
2. Replace power supply backplane
Suggested Action
1. Ensure system is being properly cooled, see
"Appendix C. Specifications" on page 117.
2. Replace board
1. Ensure system is being properly cooled, see
"Appendix C. Specifications" on page 117.
2. Replace CPU X
Ambient temperature must be within normal operating
specifications; see "Appendix C. Specifications" on
page 117.
Ensure system is being properly cooled, see
"Appendix C. Specifications" on page 117.
Ambient temperature must be within normal operating
specifications; see "Appendix C. Specifications" on
page 117.
Chapter 3. Symptom-to-part index
39