11-12
Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual
• December
2004
■
Otherwise, reposition the chassis, install the access panel, power on the system,
and verify the DIMM installation.
Refer to:
■
“Repositioning the Chassis” on page
■
“Installing the Access Panel” on page
■
“Powering On the Workstation” on page
■
“Verifying an Installation” on page
If you installed unsupported DIMMs, consider the following section.
11.1.4
OpenBoot PROM Memory Message
During system start-up, the OpenBoot PROM checks the installed DIMMs for their
type and manufacturer.
shows the check result and the action taken by the
OpenBoot PROM.
Note –
If the newly installed memory is incompatible with the Sun Blade 1500
workstation version of the OpenBoot PROM, the system beeps three times and
power off. See
“Identifying the DIMMs” on page
.
Note –
If you only have one DIMM pair installed, and the DIMMs have a different
architecture, the system beeps three times and power off. No message is displayed.
The Sun Blade 1500 workstation has four DIMM slots above the CPU. The two lower
slots make up
bank0
, the two upper slots make up
bank2
. The OpenBoot PROM
references the memory by its bank if a problem is found.
TABLE
11-2
OpenBoot PROM Memory Check Actions
Check Result
Action Taken
Wrong type of DIMM
System beeps three times and powers off.
DIMMs in a pair have different
architecture.
System does not use unlike DIMMs. A message is
displayed and the system continues to boot.
DIMMs in a pair are from different
manufacturers.
System uses DIMMs from different manufacturers. A
message is displayed and the system continues to
boot.
NOTICE - CPU0 Bank0 DIMMs are from different vendors.
Summary of Contents for Sun Blade 1500
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