PC randomly freezes

[uzchang91]

This is a newly build computer that i have built and for some reason, the system freezes. So I would force shut-down the system with the power button, but it wont turn back on until I switch the PSU switch off then on. I have updated the Bios up to date. I have tried the Burn-In-Test from PassMark and I have run a memory check and everything was fine, I have also scanned all three hard drives and nothing was wrong, and system file checker also showed nothing. So I am thinking that the Mobo is the problem. Can an expert help me?

Mobo: AZRock Z270 Gaming K4
CPU: I7-7700k
Memory: Corsair vengeance 16 GB DDR4 2133mhz x2
GPU: Gigabyte GTX 1050 ti
SSD: SanDisk Ultra II 240 GB
HDD1: Seagate FireCuda 2TB
HDD2: Seagate Baracuda 1TB
PSU: EVGA 550 B3

 

[lumineZ]

1. What are you doing on the computer when it freezes?
2. What case do you have?
3. Air or liquid cooling?
4. If air: How many fans? and what kind? what kind of CPU cooler?
5. If water: AIO or custom? what kind?
6. Tempratures on the CPU under idle and under load?
7. How are the airflow over motherboards Mosfet`s and vrm?

 

[uzchang91]

1. What are you doing on the computer when it freezes?
2. What case do you have?
3. Air or liquid cooling?
4. If air: How many fans? and what kind? what kind of CPU cooler?
5. If water: AIO or custom? what kind?
6. Tempratures on the CPU under idle and under load?
7. How are the airflow over motherboards Mosfet`s and vrm?

1. opening new google chrome and opening new tabs/ searching
2. NZXTS340 White
3. Air
4. it has 3 fans total
6. idle is around 30 to 38, under load its was around 80 to 85 only.
7. the cpu fan is blowing the air to the back of the case and the cpu fan is taller than the rams. the mosfet have decent airflow.

 

[lumineZ]

Hmm.

Could you try and unistall your GPU and take it out of the system, and run on the 7700k`s interal GPU just to check if you crash then also.