Question PC Freezes almost every 40 minutes HELP!

Feb 15, 2020
So, I built this PC back in November 2019, and I haven't had much trouble from it, it performs very nicely and as expected, but it keeps freezing up completely at almost random times. It doesn't matter if I'm gaming or just chilling in discord. I've checked the reliability report but that doesn't give me any codes or solutions. I have to hold the power button down to get the PC to restart and it's getting very annoying and tedious. Here's the specs;

CPU: Intel Core i7-9700K 3.6 GHz 8-Core Processor
CPU Cooler: Cooler Master MasterLiquid ML240L RGB 66.7 CFM Liquid CPU Cooler
Motherboard: Asus ROG MAXIMUS XI HERO (WI-FI) ATX LGA1151 Motherboard
Memory: G.Skill Trident Z RGB 16 GB (2 x 8 GB) DDR4-3600 Memory
Storage: Samsung 970 Evo 500 GB M.2-2280 NVME Solid State Drive
Storage: Intel 660p Series 2.048 TB M.2-2280 NVME Solid State Drive
Video Card: EVGA GeForce RTX 2080 SUPER 8 GB XC ULTRA GAMING Video Card
Case: Lian Li PC-O11 Dynamic Razer ATX Full Tower Case
Power Supply: EVGA 750 W 80+ Gold Certified Semi-modular ATX Power Supply
Case Fan: Cooler Master MF120R ARGB 3in1 59 CFM 120 mm Fans

If there's any compatibility issues, let me know, but everything checked out on PC Part Picker and it hasnt had any serious issues... I really just want to get this problem fixed. Any help would be greatly appreciated, thanks!