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16 Chapter 1
Introduction
System displays
Attention light bar
The Attention light bar is located at the top left corner on the front of the
HP 9000 V2500 server as shown in Figure 3 on page 12. This light bar
displays system status in three ways:
• Off—system powered down
• Steady on—system powered up
• Flashing—error condition
The SMUC prioritizes system environmental errors and warnings and
passes the information to the power-on circuit. This circuit prioritizes the
6-bit field with its environmental conditions and produces a 7-bit field
plus an attention bit (ATTN) that drives the attention light bar. ATTN is
on if there is an environmental warning. Second-level registers in the
SMUC drive the attention light bar.
In general, the power-on-detected errors are a higher priority than
SMUC-detected errors, the lower the error code number, the higher its
priority. Environmental warnings are lower priority than the
environmental errors. Table 5 shows the attention light bar error codes
in hexadecimal. The top of the table is the highest priority, the bottom
the lowest. If a higher condition occurs, that one is displayed.
Table 5 Environmental attention light bar
ATTN
bit
attentio
n light
bar
Description
1 00 SCUB 3.3-V error (highest priority)
1 01 ASIC Install 0 (MIB)
1 02 ASIC Install 1 (MEM)
1 03 FPGA not OK
1 04-07 DC OK error (UL, UR, LL, LR)
1 08-11 48-V error, NPSUL fail, PWRUP=0-9
1 12-1B 48-V error, NPSUR failure, PWRUP=0-9
1 1C-25 48-V error, NPSLL failure, PWRUP=0-9