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CAUTION: Ground yourself by touching an unpainted metal surface on the back of the computer.
NOTICE: Use a wrist grounding strap as explained in
1.
Remove the expansion-card
2.
Remove the expansion cards
3. Remove the screws securing the riser board to the expansion-card cage.
4. Lift the riser board off the expansion-card cage.
System Board Components
The subsections that follow contain procedures for removing system board components, which are shown in Figure 16.
Figure 16. System Board Components
System Board Jumpers
Figure 17 shows the layout of jumpers on the system board.
Figure 17. Layout of System Board Jumpers
Jumper pins are small groups of two or more pins on a circuit board. Plastic jumpers containing a wire fit down over the pins. The wire connects
the pins and creates a circuit.
NOTICE: Make sure your system is turned off before you change a jumper setting. Otherwise, damage to your system or
"Precautionary
cage.
installed in the slots.
Measures."
1 NIC connector
2 Video connector
3 Fan power connector
4 Serial port 2 connector
5 USB connectors (2)
6 Mouse (upper) and keyboard (lower) connectors
7 Parallel port (upper) and serial port 1 (lower)
connectors
8 Riser board connector
9 System board jumpers
10 IDE1 connector
11 IDE2 connector
12 Diskette/tape-drive connector
13 Battery
14 Microprocessor
15 3.3-V power connector
16 Control panel connector
17 DC power connector
18 Auxiliary power indicator
19 DIMM connectors (2)
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