04-12-2013 03:36 AM
04-12-2013 02:50 PM
Welcome to the Lenovo Forums.
Just to verify, does the 4 loud beep sound occur before you boot into Windows? Or does it happen only when you're inside Windows?
If it happens outside of Windows, it's probably a loose or faulty hardware. What I would do first is to reseat the PC components like memory, HDD, WLAN card, etc. and run a diagnostic on the hardware.
If the beeping sound happens inside of Windows and comes out of the speakers, try to:
1. Perform a clean boot to isolate if there are programs that are configured to play a beeping sound
2. Open Event Viewer (click start, type Event Viewer) and look under Custom Views > Administrative Events for possible errors that's causing the computer to beep.
Let me know your findings