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System board LEDs
Before you begin
46
Hardware Maintenance Manual: xSeries 330 Type 8674 and IntelliStation R Pro Type 6851
Table 8. Switches 1-4.
Switch number
4
Bypass power-on password.
When toggled to the opposite position, bypasses the power-on password,
if one is set, for one boot cycle. See "Setting the password override
switch" on page 32.
The following illustration identifies the LEDs on the system board.
Power-on
indicator
(CR47)
DIMM 1
failure
(CR 38)
DIMM 2
failure
(CR 39)
DIMM 3
failure
(CR 46)
DIMM 4
failure
(CR 54)
Fan 6
failure (CR48)
Microprocessor 2
failure (CR53)
Before you begin to install options in the server/workstation, read the following
information:
•
Become familiar with the safety and handling guidelines specified under
"Handling electrostatic discharge-sensitive devices" on page 152, and read the
safety statements in "Safety information" on page 149. These guidelines will help
you work safely while working with the server/workstation or options.
•
Make sure that you have an adequate number of properly grounded electrical
outlets for the server/workstation, monitor, and any other options that you
intend to install.
•
Back up all important data before you make changes to disk drives.
•
Have a small, flat-blade screwdriver available.
Switch description
Fan 4
Microprocessor 1
failure (CR33)
failure (CR26)
Fan 5
Fan 3
failure (CR40)
failure (CR31)
Light path
diagnostic circuit
verification LED
Light path
diagnostic
panel
Light path
diagnostics
button
Fan 1
failure
(CR15)
Fan 2
failure
(CR17)
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