HP 8100 Maintenance and Service Guide: HP Compaq 8100 and 8180 Elite Business - Page 92

Table 6-5 Power Supply Cable Connectors (continued) Power Cable Connector Color Label System Board Connector P2 white PWRCMD P3 white PWRCPU Number of Pins 6 pins (1x6) 4 pins (2x2) System Board 1. Prepare the computer for disassembly (Preparation for Disassembly on page 35). 2. When replacing the system board, make sure the following components are removed from the defective system board and installed on the replacement system board: ● Memory modules (Installing Additional Memory on page 48) ● Expansion cards (Expansion Cards on page 52) ● Heat sink (Heat sink on page 77). ● Processor (Processor on page 79) 3. Remove the computer access panel (Computer Access Panel on page 43). 4. Disconnect all cables connected to the system board, noting their location for reinstallation. 5. Remove the eight screws that secure the system board to the chassis. 6. Slide the system board toward the front of the computer so that the connectors loosen from the rear of the chassis, and then lift the system board out of the computer. Figure 6-55 Removing the system board NOTE: When replacing the system board, you must also change the chassis serial number in the BIOS. 82 Chapter 6 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis