ASUS Rog Strix B550-F Gaming (WiFi) suddenly rebooting while gaming

Recently switched out my Gigabyte B450m DS3H for an Asus Rog Strix B550-F Gaming (WiFi) motherboard, and after upgrading the new motherboard BIOS, and reseating the Ryzen 5 5600x CPU, got it to post.

In this sequence, I encountered these LED warning lights, and they all turned off eventually:

* red light by the CPU 6-pin cable connector. (I jiggled the cable, and reconnected it entirely, and that light went away) (No post yet)

* yellow VRAMM indicator light. (No Post)

*white, and green BOOT, and the white VGA light after BIOS flashing (No post)

After reseating the CPU, both lights went away and PC posted. I booted up Battlefield 2042 (I know… trash game… but I enjoy it) and minutes into a multiplayer match, the PC rebooted itself. I tried running the city sample project inside Unreal Engine (also demanding on CPU, And GPU), and it ran just fine for a long period of time. NZXT Cam indicated that temps were in the normal range.

I closed URE, and booted up BF 2042 again: same thing. Tried over and over with the same result. Computer reboots directly to the Republic of Gamers screen, and promptly boots windows every time.

After researching this issue, there doesn’t seem to be any consensus on it aside from it being difficult to diagnose. I found that almost all people reporting BF 2042 suddenly rebooting the computer are using ASUS mobo’s. In my case, I’m almost certain it’s the motherboard, as that is the only variable that has changed.

It’s my understanding that it’s a failsafe of the motherboard getting triggered by the amount of power required by the CPU. Some people say this happens when not enough power is being supplied to the CPU, which has me considering a new PSU. My Corsair CX450M Bronze-certified PSU just barely exceeds the power requirements of my build. Could that be the issue? Can one motherboard require more power to run a CPU than another? Can one motherboard run a program just fine with the same components, while a different one self-reboots due to power issues? Is this problem fixable?

HALP!

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SPECS:

https://pcpartpicker.com/user/Pjincho/saved/#view=c3QTMp

CPU:

AMD Ryzen 5 5600X 3.7 GHz 6-Core Processor

CPU Cooler:

ID-COOLING ZOOMFLOW X 62 CFM Liquid CPU Cooler

Motherboard:

Asus Rog Strix B550-F Gaming (WiFi)

Memory:

TEAMGROUP T-Force Vulcan Z 16 GB (2 x 8 GB) DDR4-3000 CL16 Memory

Storage:

Samsung 970 Evo Plus 1 TB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive

GPU:

MSI GeForce RTX 3070 Ventus 3X 8G OC LHR GeForce RTX 3070 LHR 8 GB Video Card

Case:

Cougar MX330 ATX Mid Tower Case

Power Supply:

Corsair CX450M (2015) 450 W 80 Bronze Certified Semi-modular ATX Power Supply

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TLDR: swapped out Gigabyte B450M DS3H with Asus Rog Strix B550-F Gaming (WiFi) and PC reboots after seconds or minutes into a multiplayer match on Battlefield 2042.

Everything ran fine on the Gigabyte.

Tried running Unreal Engine with no problem. NZXT Cam reads normal temps.

Update: Upgraded PSU to bequiet! Straight Power 11 Platinum 750 watts, and the problem persists.

I believe there either MUST be some remedy for this, or the motherboard is simply faulty.