System-board switches
The following illustration shows the switches on the system board.
DIMM LEDs
6 12
5 11
4 10
3 9
2 8
1 7
1 SW3
2 SW4 (Boot block/Clear CMOS)
The following table describes the function of each switch on the system board.
Table 2. System board switches
Switch number | Description |
|
|
1 | 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. |
|
|
2 | 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 |
| administrator password. |
|
|
