Sun Microsystems SunSwift SPARCserver 1000, Installation Manual, Page: 40 / 70

3-2 SPARCserver 1000 System Installation Manual—June 1996
3
Figure 3-1 Key Switch in the Standby Position
• Cabinet fans begin turning.
• The left front panel LED (green) turns on immediately denoting the power
supply is delivering DC power.
• The middle front panel LED (yellow) lights while POST runs for
approximately 60 seconds. After 60 seconds, this LED turns off if the tests
pass. If the LED remains lighted after 60 seconds, a test has failed.
• The right front panel LED (green) lights to show that booting is successful
and the operating system is running. If this LED fails to turn on and the
middle LED is on, a severe hardware fault exists.
Warning – Never move the system when the power is on. Failure to heed this
warning may result in catastrophic disk drive failure. Always power the
system off before moving it.
5. Watch the terminal screen for possible error messages from the POST
diagnostic program.
POST tests subassemblies and some interface paths between subassemblies.
At the conclusion of testing, POST automatically attempts to reconfigure the
system, omitting any parts of the system that have failed diagnostics.
If there are no faults, or if POST completes a successful reconfiguration in
response to detected faults, the system boots up.
Standby
On
Diagnostics
Locked
!