System-Board Switches And Jumpers - IBM 335 Option Installation Manual

System-board switches and jumpers

The following illustration shows the location of the switches and jumper blocks on
the system board.
Any jumper blocks on the system board that are not shown in the illustration are
reserved. See the section on recovering the BIOS code in the Hardware
Maintenance Manual and Troubleshooting Guide for information about the flash
ROM page-swap jumper.
Light Path
Diagnostics
panel test
(SW1)
Flash ROM
jumper (J38)
Video disable
jumper (J9)
PCI/PCI-X
jumper (J12)
Password
override
jumper (J28)
Chapter 1. Introduction
5