Temperature Related System Shutdown; Dasd Checkout; Host Built-In Self Test (Bist) - IBM 8676 - Eserver xSeries 335 Hardware Maintenance Manual And Troubleshooting Manual

Temperature related system shutdown

Note: See "System" on page 112 to determine which components should be replaced by a field service technician.
Message
System shutoff due to board over
temperature
(level-critical; board is over temperature)
System shutoff due to CPU x over
temperature (level-critical; CPU x is over
temperature)
System shutoff due to CPU x under
temperature (level-critical; CPU x is under
temperature)
System shutoff due to DASD temperature
(sensor x) (level-critical; DASD area
reported temperature outside recommended
operating range)
System shutoff due to high ambient
temperature
(level-critical; high ambient temperature)
System shutoff due to system board
under temperature
(level-critical; system board is under
temperature)

DASD checkout

Note: See "System" on page 112 to determine which components should be replaced by a field service technician.
Message
Hard drive x removal detected
(level-critical; hard drive x has been
removed)

Host built-in self test (BIST)

Note: See "System" on page 112 to determine which components should be replaced by a field service technician.
Message
Host fail
(level-informational; built-in self-test for the
host failed)
108
xSeries 335 Type 8676, Type 8830: Hardware Maintenance Manual and Troubleshooting Guide
Action
1. Ensure that the system is being properly cooled; see "System
reliability considerations" on page 37".
2. Replace board.
1. Ensure that the system is being properly cooled; see "System
reliability considerations" on page 37.
2. Replace CPU x.
v Ambient temperature must be within normal operating
specifications; see "Features and specifications" on page 2.
v Ensure that the system is being properly cooled; see "System
reliability considerations" on page 37.
v Ambient temperature must be within normal operating
specifications; see "Features and specifications" on page 2.
v Ambient temperature must be within normal operating
specifications; see "Features and specifications" on page 2.
Action
v Information only, take action as appropriate.
Action
1. Reseat the microprocessor.
2. Reseat the VRM.
3. Replace the microprocessor CPU.