Yep, set it to false and it still beeps randomly.
I got the Beeping sorted
Removed the casing 5 screws each side
speaker/beeper on the top
open it with a sharp blade and pulled out the round steel thingy

no more beeps
Oh gees lol. I wont be doing that.
Under the Processes tab: one of those processes must be telling it to beep. And here's what is send to cgminer:
cgminer --bitmain-options 115200:32:8:18:218.75:1106 -o USERNAME:PASSWORD --bitmain-nobeeper --api-listen --api-network --bitmain-checkn2diff --bitmain-hwerror --queue 4096
What is: --bitmain-checkn2diff
and --bitmain-hwerror
Maybe one of those is doing something related to beeping?