Power On Failure; System Leds; Table 4-1 Power-Indicator Led States - Sun Microsystems Sun Blade 1000 Service Manual

4.1

Power On Failure

Symptom
The Power-Indicator LED does not light and and the workstation does not power
on when you press the power switch (see Section TABLE 4-1, "Power-Indicator
LED States" on page 4-2).
Action
Ensure that the AC power cord is properly connected to the workstation and to
the wall receptacle. Verify that the wall receptacle is supplying AC power to the
workstation.
Ensure that the cover is securely fastened to the chassis. If the cover is not
installed, the power interlock will prevent power on of the workstation.
Press the power switch. If the workstation does not power on, one of the CPU
module(s) may not be properly seated. Inspect the CPU module(s) for proper
seating, and press the power switch again.
If the wall receptacle AC power has been verified and the CPU module(s) is (are)
properly seated, but the workstation does not power on, the workstation power
supply may be defective. See Section 4.6, "Power Supply Troubleshooting" on
page 4-6.
4.2

System LEDs

The power-indicator LED
of the workstation (
TABLE 4-1
LED Activity
LED off
LED blinking
4-2 Sun Blade 1000 and Sun Blade 2000 Service Manual • January 2002
(
FIGURE 1-2
).
TABLE 4-1
Power-Indicator LED States
Meaning
Workstation power is off or workstation is booting.
All internal subsystems are in lowest possible power
consumption mode for this workstation.
Some hardware components and software drivers do
not support the workstation's lowest possible power
consumption mode. When this occurs, the power
indicator LED will not blink.
has three states that indicate the power status
)