NOTE: After installing a new processor onto the system board, always update the system ROM to
ensure that the latest version of the BIOS is being used on the computer. The latest system BIOS can be
found on the Web at:
http://www8.hp.com/us/en/support-drivers.html.
Speaker
Description Spare part number
Speaker (40mm x 70mm) 645330-001
1. Prepare the computer for disassembly (Preparation for disassembly on page 36).
2. Remove the access panel (
Access panel on page 37).
3. Disconnect the speaker wire from the system board connector labeled SPKR (1).
4. From the inside of the chassis, remove the Torx T15 screw (2) that secures the speaker to the front
of the chassis.
5. Rotate the top of the speaker downward (3), and then remove it from the chassis.
To replace the speaker, reverse the removal procedures.
72 Chapter 5 Removal and replacement procedures: Tower (TWR)
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