HP t150 Maintenance & Service Guide: HP MultiSeat 6000 Desktop, HP MultiSe - Page 98
Battery, CAUTION
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12. Remove the eight screws that secure the system board to the chassis. Figure 6-54 Removing the system board 13. Lift up the front of the system board, and then pull the system board forward, up, and out of the chassis. To install the system board, reverse the removal procedure. NOTE: When replacing the system board, you must also change the chassis serial number in the BIOS. NOTE: The heat sink should be installed on the system board before the system board is reinstalled in the chassis. CAUTION: Before reinstalling the heat sink you must clean the top of the processor and the bottom of the heat sink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply thermal grease to the top of the processor from the syringe supplied in the spares kit. CAUTION: When reconnecting the cables it is important that they be positioned so they do not interfere with the rotation of the drive cage or power supply. Battery The battery that comes with your computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery. NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket. The lithium battery is only used when the computer is NOT connected to AC power. 88 Chapter 6 Removal and Replacement Procedures