IBM 7985 Problem Determination And Service Manual page 26

v Release latch: Slide this latch to the left to access the light path diagnostics
v System-error LED: When this LED is lit, it indicates that a system error has
v Information LED: When this LED is lit, it indicates that a noncritical event has
v Location LED: Use this LED to visually locate the server among other servers.
v Power-control button: Press this button to turn the server on and off manually.
v Power-on LED: When this LED is lit and not flashing, it indicates that the server
USB connectors: Connect a USB device, such as a USB mouse, keyboard, or
other USB device, to either of these connectors.
Video connector: Connect a monitor to this connector.
Hard disk drive activity LED: On some server models, each hot-swap hard disk
drive has an activity LED. When this LED is flashing, it indicates that the drive is in
use.
Hard disk drive status LED: On some server models, each hot-swap hard disk
drive has a status LED. When this LED is lit, it indicates that the drive has failed. If
an optional IBM ServeRAID
flashing slowly (one flash per second), it indicates that the drive is being rebuilt.
When the LED is flashing rapidly (three flashes per second), it indicates that the
controller is identifying the drive.
CD/DVD-eject button: Press this button to release a CD from the DVD-ROM drive.
CD/DVD drive activity LED: When this LED is lit, it indicates that the DVD drive is
in use.
Rack release latches: Press these latches to release the server from the rack.
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IBM System x3655 Type 7985 and 7943: Problem Determination and Service Guide
panel.
occurred. An LED on the light path diagnostics panel is also lit to help isolate the
error.
occurred. An LED on the light path diagnostics panel is also lit to help isolate the
error.
You can use IBM Director to light this LED remotely.
A power-control-button shield comes installed on the server to prevent the server
from being turned off accidentally.
is turned on. When this LED is flashing, it indicates that the server is turned off
and is still connected to an ac power source. When this LED is off, it indicates
that ac power is not present, or the power supply or the LED itself has failed.
Note: If this LED is off, it does not mean that there is no electrical power in the
server. The LED might be burned out. To remove all electrical power from the
server, you must disconnect the power cord from the electrical outlet.
™
controller is installed in the server, when this LED is