IBM x3655 User Guide - Page 35
System-board, jumpers
UPC - 883436014533
View all IBM x3655 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 35 highlights
System-board jumpers The following illustration shows the jumpers on the system board. Any jumpers on the system board that are not shown in the illustration are reserved. See the section about recovering the basic input/output system (BIOS) code in the Problem Determination and Service Guide on the IBM Documentation CD for information about using the BIOS recovery jumper. Table 2 describes the function of each jumper on the system board. BIOS recovery (J35) Power-on password override (J37) Wake-on-LAN (J33) Table 2. System Board Jumpers Jumper number Description J33 Wake on LAN: The default position is pins 1 and 2. Change the position of this jumper to pins 2 and 3 to prevent a Wake on LAN packet from waking the system when the system is in the power-off state. J35 BIOS recovery: The default position is pins 1 and 2 (use the primary page during startup). Move the jumper to pins 2 and 3 to use the secondary page during startup. J37 Power-on password: The default position is pins 1 and 2. Changing the position of this jumper to pins 2 and 3 bypasses the power-on password check the next time the server is turned on and starts the Configuration/Setup Utility so that you can change or delete the power-on password. Changing the position of this jumper does not affect the administrator password check if an administrator password is set. It you forget the administrator password, you must replace the system board. For additional information about passwords, see "Passwords" on page 69. Chapter 2. Installing optional devices 21