PC randomly freezes/crashes

[Chiipo]

My pc is freezing/crashing and it appears to only do so after I play VALORANT for a while. I can play other games all day and it doesn't crash. However, I keep running into this problem and it seems to only happen after I play valorant for a while. After getting off valorant it will run fine for a while and then sometimes freeze/crash randomly. The other day it crashed and upon booting back up, logitech ghub did not remember my dpi and mouse button assignments (never happened before). Just now it froze and went to a black screen with (no signal input) but the pc itself did not power off. Instead, my gpu lights started blinking on and off. The q code on the mobo was 8 which is apparently insufficient cpu power. (I have both 8 pin and 4 pin plugged in for the cpu power). My temps are fine and I have not noticed them being out of the ordinary (corsair water cooler). Usually they are 30-38c (across nvme ssd, gpu, and cpu) at idle and around 45-55 across gpu and cpu while playing. I ran a memtest and did not get any errors. I do have the latest gpu drivers as well.

 

I do not understand why it would give a code for insufficient cpu power if it crashes after I am done playing and close the game. Wouldn't there be more demand (and therefore more power draw) during gaming?

 

Specs

ASUS crosshair hero vii

Ryzen 7 2700x (4.0 Ghz)

3090 fe (no oc)

evga 750 g3

Corsair vengeance rgb pro 3200 mHz 2x16

Windows 10 64 bit

[STS]

Uhhnhhhhhhhhhhhhhhhhhhhhhhhh

Get a better power supply. The 3090 chugs so much power its not even funny. The gpu is using most of the power, which leaves the cpu with very little.

[Chiipo]

8 hours ago, STS said:

Uhhnhhhhhhhhhhhhhhhhhhhhhhhh

Get a better power supply. The 3090 chugs so much power its not even funny. The gpu is using most of the power, which leaves the cpu with very little.

But why would it crash after I am done playing for some time? If my psu was lacking wouldn't it crash during a game? Also, why would it not crash when I play more demanding games like cold war? My brother has an identical build to me and he has not run into any power related problems?