Changing Jumper and Switch Settings

.12/ Not used

.13/ Multiprocessing-bus connector (not used)

.14/ Fan 3 connector (outer chassis fan, upper)

.15/ Fan 4 connector (outer chassis fan, lower)

.16/ Hard disk drive LED 2 connector

.17/ SCSI channels 1 (right) and 2 (left) connectors

.18/ EISA slots 1–4 for adapters (slot 1 toward top, slot 4 toward bottom)

.19/ PCI slots 1–6 for adapters (slot 1 toward top, slot 6 toward bottom: Bus 0 = slots 1–3; Bus 1 = slots 4–6)

.2ð/ Configuration switches and jumpers

.21/ Real-time clock connector

.22/ Video memory DRAM connector

.23/ VGA monitor connector

.24/ Parallel-port connector

.25/ Serial-port connectors A (COM1) and B (COM2)

.26/ PS/2-compatible keyboard and mouse connectors

Changing Jumper and Switch Settings

Jumpers and switches are used to define configuration values on the system board, backplanes, adapters, and other devices. Refer to the documentation that comes with the devices for specific information about the appropriate jumper settings.

This section provides information on:

ŸChanging a jumper setting

ŸSetting the SCSI ID on a device or backplane

ŸSetting the system-board configuration jumpers

ŸChanging the system-board configuration switches

Appendix A. Server Records 289

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Image 307
IBM 704 manual Changing Jumper and Switch Settings