Dell OptiPlex Gxi - Manual (Page 76)

6-10 Dell OptiPlex GXi Mini Tower Systems Reference and Installation Guide
12. If necessary, change the microprocessor speed
jumper setting (see Figure 5-6 to locate the system
board jumpers).
The microprocessor speed jumper should be set for
the installed microprocessor’s rated internal speed.
For example, for a 166-megahertz (MHz) Intel Pen-
tium processor, a jumper plug should be installed on
the pins labeled “166.” (See Table 5-1 for more
information.)
13. Replace the computer cover, reconnect your com-
puter and peripherals to their power sources, and
turn them on.
As the system boots, it detects the presence of the
new microprocessor and automatically changes the
system configuration information in the System
Setup program.
14. Enter the System Setup program, and confirm
that the Microprocessor category correctly identi-
fies the installed microprocessor.
See Chapter 2, “Using the System Setup Program.”
15. Run the Dell diagnostics to verify that the new
microprocessor is operating correctly.
See your Diagnostics and Troubleshooting Guide for
information on running the diskette-based diagnos-
tics and troubleshooting any problems that may
occur.
U
pdating the NIC Daughter Board
To update the system’s 100Base-TX or 100Base-T4 NIC
daughter board with the alternative NIC daughter board,
you must replace the NIC daughter board and configure
the NIC, as described in the following procedure:
1. Remove the computer cover according to the
instructions in “Removing the Computer Cover”
in Chapter 5.
2. Remove the mounting screw for the NIC daugh-
ter board from the back of the computer.
3. Pull the NIC daughter board straight out from
the system board (see Figure 6-14).
Figure 6-14. Removing the NIC Daughter
Board
4. Insert the new NIC daughter board into the NIC
daughter board connector.
5. Insert and tighten the mounting screw for the
NIC daughter board.
6. Replace the computer cover according to the
instructions in “Replacing the Computer Cover”
in Chapter 5.
7. Restart the system in MS-DOS safe mode.
8. Insert the NIC drivers diskette 1 (diskette 2 for a
system running the Windows 95 operating sys-
tem) into drive A, type
a:\niccfg.exe , and
then press <Enter>.
The system detects and configures the new NIC
daughter board.
9. Reinstall the NIC driver.
For installation instructions, see “Configuring the
NIC” in Chapter 4.
T4 designation