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Items
Noise (sound)
Items
Symptoms
Computer emits abnormal noise
Noisy fan
Noisy hard drive
Noisy optical drive
Noisy speaker
Noisy display
The section below is intended for authorized service providers/technicians.
116 Chapter 6 Troubleshooting guide
Procedures
See https://support.hp.com/us-en/document/c01657439.
Procedures
Possible causes
Aside from basic components (power adapter/supply, fan, speaker, hard drive,
optical drive, display panel, external devices), it is also common for electronic
components to produce noise.
Troubleshooting steps
1.
Inspect external power source and change to verified working one.
2.
Determine whether the noise comes from AC power adapter. Test with a
verified working AC adapter.
Disconnect external devices and all cables connected to the computer to isolate
issue to computer only.
Determine whether the noise comes from the fan. Disconnect the fan briefly to
isolate whether noise originates from fan. If noise is absent with fan disconnected,
refer to
Fan runs constantly on page
Determine whether the noise comes from the hard drive.
See
Noisy hard drive on page
114.
1.
Determine whether the noise comes from an optical drive.
2.
Remove CD/DVD from the optical drive.
1.
Determine whether the noise comes from speaker.
2.
Test with a verified working external headset/speaker.
Determine whether the noise comes from display panel (humming noise). Change
display frequency settings. See
1.
After disassembling the chassis, inspect components of the interior for
excessive wear or damage.
2.
If noise issues persist, proceed with process of elimination for battery, AC
adapter, or boards.
117.
Display on page
97.
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Table of Contents
Troubleshooting
