I just bought an Asus K56CB notebook. I immediately replaced original platter hard drive with my SSD I had in my previous laptop (no re-installation, just remove from previous and replace in new). I'm not sure whether Windows automatically installs new hardware drivers when turned on or not, but I would expect it to do so.
Anyway. When I turned notebook on it worked without any hiccups except for the sound which was working but with additional noise (as if some sort of crosstalk but just loud enough to be annoying) and crackling sound. I tried connecting to external speakers and sound was fine.
Few things I tried or I should try:
- Muting the built-in microphone in case it would be picking up some internal noise but there was no difference. Mind that these noises are only present, when audio is being used and not all the time...
- As I've read on the web some people were experiencing (in words) similar issues but there was a difference when they had battery plugged in. So I tried the same but no difference either.
- I may try installing a different OS to see whether audio drivers are the weakest link here although I doubt as connecting external speakers works fine
- If there's actually some cable crosstalk at play I may disassemble the notebook and reposition speaker cables (if any)
- Most likely I should turn this computer back in and get it serviced or even better get it replaced. Not sure about void warranty as I've opened it already to replace the hard drive.
I strongly suspect it may be faulty notebook internal speakers but I'm not sure how should I troubleshoot this if at all?
This is the sound from my notebook built-in speakers because it will be easier for you to hear what I'm trying to explain in words. You can also hear mouse clicking and default Windows notification sound for sound level comparison.
Configuration: Asus K56CB, intel i5, 6GB RAM, Crucial M500 256 SSD, Windows 7