Question my computer had sometimes

[camthao]

For something like 7 day ago, my computer had sometimes (randomly) freezes for around 2 or 3 secs. Everything stop, the sound playing is looping to the last "note" and my component have a strange spike down or up. Thoose freezes seems to be random, but never happen more like once an hour. Its mostly twice a day considering i'm using this computer 8-10 hours a day.
I investigated the most I could, but didn't found any clue on what's going on.
I'll share with you the informations i have.

My computer :
Windows 10 Education 64-bit
Motherboard : ASUS ROG STRIX Z370-E GAMING (LGA1151)
CPU : Intel Core i7-8700K 3.70Ghz
RAM : G.Skill F4-3600C17-8GTZR
GPU : ROG-STRIX-GTX1080TI-O11G-GAMING
SSD : Samsung SSD 960 EVO 1TB (Nvme M.2)
HDD : Seagate ST1000DM010-2EP102 (Sata)

 

[rgd1101]

cpu/gpu temp and usage?
ram/ssd/hdd usage?
malware scan the system?
how much ram? just 1 stick of 8GB?