HP Z VR Backpack G1 - Noise (Sound)

Noise (sound)
Items Procedures
Symptoms
Computer emits abnormal noise
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 veried working one.
2. Determine whether the noise comes from AC power adapter. Test with a veried working
AC adapter.
Disconnect external devices and all cables connected to the computer to isolate issue to
computer only.
Noisy fan Determine whether the noise comes from the fan. Disconnect the fan briey to isolate whether
noise originates from fan. If noise is absent with fan disconnected, refer to Fan runs constantly
on page 82.
Noisy hard drive Determine whether the noise comes from the hard drive.
See Noisy hard drive on page 79.
Noisy speaker 1. Determine whether the noise comes from speaker.
2. Test with a veried working external headset/speaker.
Noisy display Determine whether the noise comes from display panel (humming noise). Change display
frequency settings. See Display on page 65.
The section below is intended for authorized service providers/technicians.
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.
Common issues and possible solutions 81