New Custom PC Keeps Freezing

[KMa885]

I recently built a new PC, listed below are the specs:

-Asrock FM2A88M Pro3+ Micro ATX motherboard
-AMD Athlon x4 860K
-Crucial 8 GB Single stick DDR3 1600 mt/s
-Sapphire Radeon R9 380
-EVGA 600W power supply
-Hyper 212 EVO CPU cooler
-Sandisk SSD 240 GB

Ever since I built the PC about a week and a half ago, the PC will randomly freeze and I can't seem to find the issue. If there is sound playing, my speakers will just make a constant unpleasant noise, my keyboard and mouse are unresponsive (can't turn on CAPS lock or anything), and I'm forced to manually restart my computer. The fans inside the case remain running, however.

I also have Core Temp installed to monitor my CPU temps, but they are always 40-70 F while browsing and 70-90 F while gaming.

Sometimes it's while I'm browsing on Chrome, I even tried switching to Firefox to see if Chrome was the problem but it would freeze there too, it will freeze in champion select in League of Legends, but it has never actually frozen in a game (including Rocket league, league of legends, call of duty, CSGO). Really hope someone can solve this for me, it's been extremely frustrating!

 

[X79]

Did you leave at least 20% of the 240GB SSD space free?

League can be a good 5-8GB
Rocket league around 1-2GB
CoD, depending on which one, 10-30GB plus updates.
CSGO another 5-10GB perhaps
Windows anywhere from 10-20GB depending on what you install as well.

So in the event you've installed too much, you could try uninstall some things.
Alternatively, you could check and see if you've got all the latest drivers and firmware for your motherboard too.
Which OS are you using?

 

[KMa885]

Did you leave at least 20% of the 240GB SSD space free?

League can be a good 5-8GB
Rocket league around 1-2GB
CoD, depending on which one, 10-30GB plus updates.
CSGO another 5-10GB perhaps
Windows anywhere from 10-20GB depending on what you install as well.

So in the event you've installed too much, you could try uninstall some things.
Alternatively, you could check and see if you've got all the latest drivers and firmware for your motherboard too.
Which OS are you using?

Yes, I have over 50% of the SSD free.
I'm using Windows 8.1 standard 64.
I do have all of the latest drivers for my motherboard as well.

 

[X79]

Right.

You can try pressing the start button and then typing Event Viewer and take a look under Windows logs for instance and then
going down the list, through items like applications. Look for any red exclamation marks or yellow triangles. It might lend you a
clue.