System-Board Switches - Lenovo ThinkServer TD100 Hardware Maintenance Manual

System-board switches

The following illustration shows the switches on the system board.
The following table describes the function of each switch on the system board.
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ThinkServer TD100 and TD100x: Hardware Maintenance Manual
DIMM LEDs
6 12
5 11
4 10
3 9
2 8
1 7
1 SW3
2 SW4 (Boot block/Clear CMOS)
Table 2. System board switches
Switch number
1
2
Description
Boot block:
v When this switch is on 1, this is normal mode.
v When this switch is toggled to On, this enables the
system to recover if the BIOS code becomes damaged.
See "Recovering from a BIOS update failure" on page 203
for more information.
Clear CMOS:
v When this switch is on 2, this keeps the CMOS data.
This is normal mode.
v When this switch is toggled to On, this clears the CMOS
data, which clears the power-on password and
administrator password.