Sound issues help please.

[Bold_Wolf]

Hello I've been having sound stuttering issues on my pc. I built my pc a while back and when I tried to play pretty much any game it would after a few minutes and the headphone jack would not work entirely. I downloaded the latest audio driver for my motherboard and the headphone jack was now fixed and the back speaker jack turning off doesn't happen nearly as much but it still quite often turns of for a second the turns back on. Its not that big of deal but it would be greatly appreciated if someone could help. My pc specs and questions I want answered are listed below, thank you. cpu: i3-6100

motherboard:Gigabyte GA-B150M-D3H

ram:G.Skill Ripjaws V Series 8GB DDR4-2400

ssd:Intel 540s 120GB

gpu:EVGA gtv 750ti superclocked

case: Corsair spec 3

power supply:EVGA 430W

optical drive:Lite-On iHAS124-14

operating system: Windows 10 pro 64bit

wifi adapter:TP-Link TL-WN881ND

1. I would like to know how to fix this if possible.

2. What part of the computer causes this issue.

3. I have no sound card would one help.

Help would be awesome thanks.