Working Inside Your Computer 5-7
System Board and Riser Board Labels
Table 5-2 lists the labels for connectors and sockets on
your system board and riser board, and it gives a brief
description of their functions.

Table 5-1. System-Board Jumper Settings

Jumper Setting Description
RSVD2 Reserved (do not change).
300MHZ* Jumpered when the microprocessor’s internal speed is 300 MHz.
266MHZ*Jumpered when the microprocessor’s internal speed is 266 MHz.
233MHZ*Jumpered when the microprocessor’s internal speed is 233 MHz.
BIOS
Reserved (do not change).
PSWD Password features are enabled.
Password features are disabled.
* One set of the speed j umper pins must have a jumper plug installed; otherwise, the system will operate at an undetermi ned
speed.
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in your online System User’s Guide.
(default)
(default)
(d
e
f
au
l
t
)
jumpered unjumpered

Table 5-2. System Board and Riser Board Connectors and Sockets

Connector or Socket Description
BATTERY Battery socket
CD_IN CD-ROM audio interface connector
DIMM_xDIMM socket
DSKT Diskette/tape drive interface connector
ENET NIC connector (optional)
FAN Microprocessor fan connector
* Connector ISA1 shares a single card-slot opening with PCI4, and ISA2 shares with PCI5. Only on e co nn ecto r at a time c an be
used on a shared card-slot opening.
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in your online System User’s Guide.