Service manual

3-74 AlphaServer GS80/160/320 Service Manual
Figure 3– 1 System LEDs (Continued)
Figure 3–1 continued shows the location and normal condition (on or off) of
LEDs on the CPU, HPM, H-switch power supplies, master clock, and CSB node
ID module when the system is running.
The following comments assume the system is powered on, all cabinet doors are
open, and faceplates removed so all LEDs are visible. Note that LEDs could be
off because the system/QBB was powered off remotely or that there is some
other power problem. See Section 3.1.