User`s guide

Troubleshooting 4-7
Internal Speaker Failure 0
If the Internal Speaker fails, perform the following, one at a time. Do not replace a non-defective FRU:
Figure 4-5. Internal Speaker Failure
Sound Problems 0
Perform the following, one at a time.
1. Boot the computer.
2. Navigate to Start  Control Panel  System and Maintenance  System  Device
Manager. Check the Device Manager to determine that:
The device is properly installed
There are no red Xs or yellow exclamation marks
There are no device conflicts
No hardware is listed under Other Devices
3. If updated recently, roll back the audio driver to the previous version.
4. Remove and reinstall the audio driver.
5. Make sure that all volume controls are set mid range:
Click the volume icon on the taskbar
Drag the slider to 50. Confirm that the volume is not muted.
START
NG
NG
Swap MB
Reassemble the
SPK cable to MB
Swap Reassemble
The SPK module
Check SPK
module
Check MB
SPK cable