T-Docking Board Jumpers - IBM xSeries 380 Hardware Maintenance Manual

The following illustration shows the jumper settings.
1
Allows the PCI Hot Plug Interlock Switch and/or the PID's GPIO27 to Set the
Interlock Value (Default Setting)
2
Overrides the Hardware PCI Hot Plug Interlock Switch

T-Docking board jumpers

Jumper blocks exist on the T-Docking Board that allow you to force a firmware
update, flash boot block write enable, and configure for 220 Volt Brownout protection.
To access these jumper blocks you need expose the T-Docking Board by following the
instructions in "T-Docking board" on page 205.
The following illustration shows where the jumper blocks reside on the T-Docking
board.
J4E1 Force Firmware Update
J4E2 Flash Bootblock Enable
J4D1 220V Brownout Protection
Forcing a firmware update and flashing boot
block write enable
Jumper blocks J4E1 and J4E2 allow you force a firmware update and flash boot block
write enable. By default, both these features are disabled.
J4D1
J4E2
J4E1
FRU information (service only)
223