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System board leds – IBM xSeries 330 User Manual

Page 49

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Chapter 5. Installing options

41

The following table describes the function for each switch.

System board LEDs

The following illustration identifies the LEDs on the system board.

Table 9. Switches 1-8.

Switch number

Switch description

1

Reserved.

2

Reserved.

3

Reserved.

4

Reserved.

5

Force power-on. The default setting is Off (disabled).

6

Reserved. The default setting is Off.

7

Reserved. The default setting is Off.

8

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 34
.

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

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