Intel arc b580/ i5-13400f crazy fps drops/black screen that stutters

[echo marsh]

Hi, so ive bought a pc this friday, after getting home i installed the latest drivers, first game i downloaded was fortnite, after launching it ive noticed constant fps drops that reach 3-40fps all on low settings, i also get a pop up message when i launch the game, but after searching it in microsoft store nothing pops up, after playing a bit and clicking menu in fortnite, i get a black screen with various colour pixels that flash when i move my mouse, sometimes they dont, i dont know much about pcs, since im new, cant contact the shop until this monday, any ideas on how i could fix it?
Ive tried playing csgo 2 also on very high graphics, it performs better at around 50-80fps but has frequent fps jitters. Tried reinstalling fortnite but nothing changed

Also whenever the screen goes black theres like a fast electricity ticking noise coming from the pc

[echo marsh]

Probably cause: discord, after uninstalling it fortnite started to play at 600fps-700 with fps drops to around 30-60 sometimes on low, csgo2 avg 140 on max

But still isnt quite running as it should i believe, some crashes here and there and computer feeling slow

From time to time

[oblique stone]

did you turn on rebar

[echo marsh]

I cant turn it on, even through bios

[oblique stone]

that explains why...

what motherboard do you have?

i'll check if it has rebar support

supposing it has 13th gen support it SHOULD have rebar support but idk

maybe you missed it

[slow phoenix]

maybe needs to update bios

[echo marsh]

Ive turned on rebar but still seems to have some fps drops here and there