IBM 86624RY Maintenance Manual - Page 289

Table 18 (Page 2 of 2). System board jumpers Jumper Name 1 J32 Power-on control with extension cable 11 J15 RAID download 12 J25 Reserved 13 J9 Reserved 2 J34 Reserved 21 J29 Reserved 22 J26 RS-485 24 J51 Disable Advanced System Management Processor 27 J24 Power-on password override 28 J30 Flash ROM page swap 46 J5 Disable Ethernet controller 47 J14 Disable video controller Description The default position is normal operation (jumper on pins 1 and 2). Moving the jumper to pins 2 and 3 allows the power supply to be turned on without a power switch assembly or Netfinity Advanced System Management Processor. A cable is connected to these pins to allow easy access while the processor support tray is still installed; its white wire indicates pin 1. The default is no jumpers on the pins. This jumper block is used when the RAID adapter EEPROM is being updated. The default position is a jumper on pins 1 and 2. The default position is a jumper on pins 1 and 2. The default position is a jumper installed on pins 1 and 2. The default position is a jumper installed on pins 1 and 2. The default is no jumper installed on J26. In normal operation, there is no jumper on J51. Installing a jumper on J51 disables the Netfinity Advanced System Management Processor. A jumper should only be installed on J51 for diagnostic purposes. Normal operation of the server with J51 jumpered is not supported. A system operated in this manner is limited in the following ways: 1. No system error logging. 2. No monitoring of system functions for problem. 3. No automatic recovery after an NMI error. 4. Error indication ability is severely limited. Changing the position of this jumper bypasses the power-on password check if the jumper has been moved since the server was last powered on. You do not need to move the jumper back to the default position after the password is overridden. Changing the position of this jumper does not affect the administrator password check if an administrator password is set. The default position is a jumper installed on pins 2 and 3. Changing the position of this jumper will change which of the two pages of Flash ROM is used when the system is started. The default position is Enabled (jumper on pins 1 and 2). Move the jumper to pins 2 and 3 to disable the Ethernet controller. The default position is Enabled (jumper on pins 1 and 2). Move the jumper to pins 2 and 3 to disable the video controller. Netfinity 5500 M20 - Type 8662 281