Post Progress And Error Reporting - Sun Microsystems Sun Ultra 60 Service Manual

Power On Selftest Completed
3.4.3

POST Progress and Error Reporting

While POST is initialized, the Caps Lock key on the Sun Type-5 keyboard flashes on
and off to indicate that POST tests are being executed. Additional POST progress
indications are also visible when a TTY-type terminal or a tip line is connected
between serial port A (default port) of the system being tested and a POST
monitoring system.
If an error occurs during the POST execution, the keyboard Caps Lock key indicator
stops flashing and an error code is displayed using the Caps Lock, Compose, Scroll
Lock, and Num Lock key indicators. The error code indicates a particular system
hardware failure.
Note -
Compose, Scroll Lock, and Num Lock key indicators closely while POST is active.
In most cases, POST also attempts to send a failure message to the POST monitoring
system. Code Example 3–3 identifies the typical appearance of a failure message. If a
keyboard error code is displayed, determine the meaning of the error code by
comparing the keyboard error code pattern to the corresponding error code meaning
listed in Table 3–2.
Note -
the ok prompt to alert the user of a failure.
Typical Error Code Failure Message
CODE EXAMPLE 3–3
Executing Power On SelfTest
0>
0>@(#) Sun UltraSPARC-II 2-way(Deuterium) UPA/PCI POST 1.0.3 08/15/97: 11:36
0>INFO: Processor 0 is master.
0>
0> <00> Init System BSS
0> <00> NVRAM Battery Detect Test
0> <00> NVRAM Scratch Addr Test
0> <00> DMMU TLB Tag Access Test
(continued)
An error code may only be visible for a few seconds. Observe the Caps Lock,
The system unit does not automatically boot if a POST error occurs; it halts at
(Continuation)
3-17
Power-On Self-Test