Mod Edit: Split from http://www.bleepingcomputer.com/forums/t/374254/loud-alarm-on-toshiba-laptop - Hamluis.
I have similar issue. my toshiba, I replaced the motherboard, and CPU. powered up fine and I began a Windows 10 upgrade. in the middle of the upgrade, the toshiba just died. I tried rebooting it, and it would partially, then, the loud 3 beep alarm, after that....nothing. I removed the RAM, HDD, repalced the CPU, nothing. no signs of life. is the MOBO fried again??
Edited by hamluis, 08 October 2016 - 03:38 PM.