Question Custom gaming PC crashing

Nov 3, 2022
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Hey, hoping I can get some advice here. I have a PC I built a few months ago primarily for work and casual gaming. It's a pretty high end build and shouldn't be running into issues such as crashing on Fortnite at 120 fps. My CPU usage has also went to 100% at times from just having a lot of chrome tabs opened and crashed.
My components are as follows -

Intel Core i9-11900K Desktop Processor 8 Cores up to 5.3 GHz Unlocked LGA1200 (Intel 500 Series & Select 400 Series Chipset) 125W
ASUS ROG MAXIMUS XIII EXTREME LGA 1200 Intel Z590 SATA 6Gb/s Extended ATX Intel Motherboard
G.SKILL TridentZ RGB Series 32GB (2 x 16GB) 288-Pin PC RAM DDR4 4800 Desktop Memory Model F4-4800C20D-32GTZR
ASUS ROG STRIX NVIDIA GeForce RTX™ 3090 White OC Edition Gaming Graphics Card (PCIe 4.0, 24GB GDDR6X, HDMI 2.1, DisplayPort 1.4a, White color scheme, Axial-tech Fan Design, 2.9-slot, Super Alloy Power

First issue I ran into when putting the build together was that I couldn't get it to run on 64gb (4x16) of ram. I had 2 sets of the 2x16 g.skill ram and when I tried to boot at 64 it would either not boot at all or boot and crash shortly thereafter. Had a friend try to walk me through tinkering with xmp1 and 2 and various voltage settings but we could never get a stable configuration so I've been running it with just the 32 gb of ram. I don't know if the memory alone can be causing my issues but I suspect it might be contributing.
Any advice to make my PC run better would be greatly appreciated.
Thanks
 
Thanks for the quick reply
The PSU is EVGA SuperNOVA 1000 T2 220-T2-1000-X1 80+ TITANIUM 1000W
I updated the BIOS when I first put the build together - BIOS Version/Date American Megatrends Inc. 1202, 10/27/2021 .. I'll update and see if it does anything.
running on windows 10