Weird sounds

Hi Major Geeks,

Could you please help? My problem isn't critical, but it is really annoying. My computer makes weird sounds at random intervals. One sound is like a lengthy gong, the other one is like a cuckoo watch chiming, both are quite loud. Another side of this problem is that when I put my laptop to sleep, it wakes up after a while and -- just imagine -- starts making those weird loud sounds in the middle of the night. Despite the fact that it is closed.

I am also a bit worried that a more serious threat might be hiding behind these sounds, but none of the latest and greatest antiviruses or malware removal tools was able to find anything.

I've done the cleanup as instructed, the logs are attached.

Please help!

Alex