Sun Microsystems 817-4054-15, Руководство по обслуживанию

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8-2 Sun Fire E2900 System Service Manual • May 2006
8.1 Power Supplies
Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in its ESD safe packaging box before placing them on any surface
Note –
In order for the system to function correctly, a minimum of two power
supplies must be powered on and operating.
The power supplies are located at the front of the system below the disk drives
(
FIGURE 8-1
). Each power supply has three LEDs (
TABLE 8-1
).
Note – As long as a minimum of two power supplies are powered on and operating
normally (with only the activated LED lit ), you can remove one of the other power
supplies.
TABLE 8-1
Power Supply LED Descriptions
LED Name On Off Blinking
Activated LED
(green) Power supply activated
and operating normally. Power supply
deactivated. System is in Standby
mode.
Predictive fault LED
(amber) Power supply detected a
pending internal fault.
Consider replacing the
power supply. Power supply fan
speed is not below a
specified level. Power supply fan
speed is below a
specified level.
Fault LED (amber) Fault present.
Replace the power supply. No fault present. N/A