Important: Use only a supported SAS/SATA controller in the SAS/SATA controller card connector. For a list of supported optional devices for the server, see http://www.lenovo.com/thinkserver.
System-board switches and jumpers
The following illustration shows the switches and jumpers on the system board.
1 Boot block recovery jumper 2 Clear CMOS jumper
The following illustration identifies the pins on a jumper and shows the location of pin 1.
| 3 |
| 2 |
Pin 1 mark | 1 |
|
Table 2. Switch and jumper settings
Component | Settings |
|
|
Clear CMOS jumper (JP3) | v Pins 1 and 2: Keep CMOS data (default) |
| v Pins 2 and 3: Clear the CMOS data, which clears the |
| |
|
|
Boot block jumper (JP4) | v Pins 1 and 2: Normal (default) |
| v Pins 2 and 3: Boot from boot block |