Sony pcv 7732 has an alarm siren that keeps going on.
Start up the computer, enter the BIOS, go to the option which is "PC Health" or something along those lines, and check your CPU TEMP. There should also been an option somewhere which will let you dictate at what temperature the alarm goes off, to warn you of heating. Compare the 2, if the CPU temp is say 30 degrees, and the warning temp is 60, let the PC run in BIOS for awhile and check the temps. If it shoots up and the alarm goes off, you have a cooling issue.