PC gives 3 fast beeps while playing VR

[agentrush]

Hello, I'm having trouble figuring out why my PC keeps beeping when playing VR. When ever I play some VR games for a moderate amount of time, my PC will give off 3 really fast beeps. I usually run to check cpu core temps and they are at a moderate temp of 56 degrees. The games will still run fine, its just worries me not knowing why I sometimes getting this beeping. Was hoping someone could help me figure out what is wrong, Thank you!
(Specs below)
Operating System
Windows 10 Home 64-bit
CPU
Intel Core i5 4670K @ 3.40GHz
Haswell 22nm Technology
RAM
16.0GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
Motherboard
ASUSTeK COMPUTER INC. Z87-A (SOCKET 1150)
Graphics
24GM79G (1920x1080@144Hz)
3071MB NVIDIA GeForce GTX 1060 3GB (Gigabyte)
Storage
931GB Western Digital WDC WD10EZEX-22MFCA0 (SATA )
232GB Western Digital WDC WDS250G2B0A-00SM50 (SATA (SSD))
Optical Drives
hp CDDVDW SH-216BB
Audio
Realtek High Definition Audio

 

[popatim]

Check GPU temps as well.