IBM 867413x - Eserver xSeries 330 8674, Hardware Maintenance Manual

Page: 53 / 192

The following table describes the function for each switch.
Table 8. Switches 1-4
Switch number Switch description
1 Force power-on. The default setting is Off (disabled).
2 Reserved. The default setting is Off.
3 Reserved. The default setting is Off.
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 31.
System board LEDs
The following illustration identifies the LEDs on the system board.
Light path
diagnostic circuit
verification LED
Light path
diagnostics
button
Light path
diagnostic
panel
Fan 1
failure
(CR15)
Fan 3
failure (CR31) Fan 5
failure (CR40)
Fan 4
failure (CR33) Fan 6
failure (CR48)
Fan 2
failure
(CR17)
Microprocessor 1
failure (CR26)
Microprocessor 2
failure (CR53)
DIMM 4
failure
(CR 54)
DIMM 3
failure
(CR 46)
DIMM 2
failure
(CR 39)
DIMM 1
failure
(CR 38)
Power-on
indicator
(CR47)
PS
TEMP
FA
N
SP
MEM
CPU VRM PCI
Light Pa
th
Before you begin
Before you begin to install options in the server/workstation, read the following
information:
v
Become familiar with the safety and handling guidelines specified under
“Handling electrostatic discharge-sensitive devices” on page 150, and read the
safety statements in “Safety information” on page 147. These guidelines will help
you work safely while working with the server/workstation or options.
Installing options
45