Black screen, then POST failure

[Dobby_is_free]

Hi all, so I recently upgraded my system and things have been going beautifully for about 2 weeks now. Last night I was playing some Destiny 2 when the screen froze for about half a second. Then the screen when black and all of my peripherals turned off. The fans in the PC kept running as well as the LEDs I have stayed on. I hard shut off the PC and turned it back on, but the POST hanged on the CPU light. I hard powered it again and then it POST into safe mode. It seems to be working fine now, I'm just confused as to what caused this or if I should be concerned. I'm not running any undervolts or overclocks, in fact I'm running my CPU in 105w eco mode. I do have EXPO enabled though. I'll leave the full system specs below.

 

AMD Ryzen 9 7900X

ASUS B650E-F gaming WiFi

G.Skill Flare X5 DDR5 6000 CL 36 32Gb (2x16gb)

XFX Mercury 310 Radeon RX 7900 XT

EVGA Supernova G3 750w 80+ gold

240 gb SATA SSD

1TB HDD

1 TB M.2 SSD

Be Quiet Dark Base 700