LEDs on the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system

Use this information as a guide to the LEDs on the IBM® Power® System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system.

The LEDs indicate various system statuses. These LEDs are at the front (as shown in Figure 1 and Figure 2) and at the rear of the system (as shown in Figure 3).
  • The green LED indicates the power status.
    • A constant light indicates full system power to the unit.
    • A flashing light indicates standby power to the unit.
  • The blue LED is used to identify the system that requires service.
  • The amber LED indicates a problem in the system. After a part is repaired, the amber LED takes a minute to turn off.
Figure 1. Front LEDs with bezel on
Front LEDs
Figure 2. Front LEDs with bezel off
Front LEDs
Figure 3. Rear LEDs
Rear LEDs
LED indicators are on the following parts:
  • At the front of the system:
    • Disk drives (green LED indicates activity; amber LED indicates a problem).
    • Fans (green LED indicates activity; amber LED indicates a problem).
  • At the rear of the system:
    • Backplane, near the rightmost PCIe slot port: Green, amber, and blue (same as on the front next to the power button).
    • Power supplies (Two green LEDs indicate AC and DC power; amber LED indicates a problem).