IBM xSeries 440 8687, Hardware Maintenance Manual

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1. Check the light path diagnostics panel and note which lights are illuminated.
These lights will indicate the type of error. These lights are described more fully
at “Light Path LED errors” on page 155.
The light path diagnostics panel is located inside the light path diagnostics
drawer on the front right of the server. Press on the front of the light path
diagnostics drawer and the light path diagnostic panel will be exposed.
More information about the individual lights on this panel is available at “Light
Path LED errors” on page 155.
2. After you have viewed the light path diagnostics panel, check the lights on the
top of the server, including the fans, and note which lights are illuminated.
Six LEDs on the center plane are visible through the top cover. If one of these
is illuminated, the number next to the illuminated light indicates the particular
Diagnostics
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