Compaq 2230s HP Compaq 2230s Notebook PC - Maintenance and Service Guide - Page 68
System board, Audio board see
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System board Description GM45 (includes RTC battery and replacement thermal material) GL40 (includes RTC battery and replacement thermal material) Spare part number 493185-001 504446-001 Before removing the system board, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive (see "Hard drive" on page 4-8) b. Memory module (see "Memory module" on page 4-10) c. WLAN module (see "WLAN module" on page 4-12) d. Optical drive (see "Optical drive" on page 4-16) e. Keyboard (see "Keyboard" on page 4-18) f. Top cover (see "Top cover" on page 4-21) g. Audio board (see "Audio board" on page 4-32) h. Fan (see "Fan" on page 4-33) When replacing the system board, be sure that the following additional components are removed from the defective system board and installed on the replacement system board: ■ RTC battery (see "RTC battery" on page 4-36) ■ Modem module (see "Modem module" on page 4-37) ■ Bluetooth module (see "Bluetooth module" on page 4-39) ■ Heat sink (see "Heat sink" on page 4-41) ■ Processor (see "Processor" on page 4-43) Removal and replacement procedures 4-34