I am using a Lenovo ThinkPad W530 and occasionally, when I start up the laptop I hear a faint beep noise coming from inside the laptop itself. What is the source of this noise? How can I stop it? I've read somewhere online that it could be an internal speaker used to notify the user of some kind of error.
I too was getting this annoying beep.
here is a link from the lenovo forums where other users get the issue and some fixes. I was able to fix it by disabling the optical drive. you can test this by just opening the cd drive, and the sound will stop for a few seconds.