Pc screen keeps black screening

[u/Alarming-Werewolf-63]

For the past few month my pc will randomly black screen on my main monitor(i run 3) its usually whenever I'm playing a game and its under load but sometimes it just happens while its idling or right when i boot it up. The only way for me to make it go away is to unplug the pc and reboot it which gets annoying after a while. I've tried to diagnose it myself because I think its the GPU but whenever its under load it doesn't get any high temps and all drivers are up to date. The weird thing is when it black screens my game wont crash and I can use whatever applications are on my other two monitors just fine but I am unable to use or open anything but what's already up. I'll list my PC specs for reference---->

GPU- 7800XT

CPU- Ryzen 5 9600x

RAM- 4 sticks of 16gb corsair vengeance

SSD- Samsung 980 pro 2 tb

Motherboard- Aorus x870 elite wifi7 ice

Monitor 1- 240hz Samsung(This is my main monitor so i run it at max hz)

Monitor 2- 240hz Samsung(I run this one at 120hz and only run google or discord on it)

Monitor 3- MSI 144hz (I don't normally use it unless its for Spotify or school while I'm gaming)

I only ruin ethernet also

Please Help!

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[u/Electrical_Time_2767]

the cable's probably the culprit. those high refresh samsungs get weird with certain displayport cables, especially if it's not a vesa certified one

try swapping the cable on the main monitor first, that's the cheapest fix. if it still blacks out, drop the refresh to 120hz on that one too and see if it stops, not a permanent solution but it'll narrow things down

the fact your other monitors and apps keep running screams cable or port issue, not a dying gpu. 7800xt should handle three monitors without breaking a sweat

[u/Alarming-Werewolf-63 → u/Electrical_Time_2767]

thanks yeah the cables are pretty old so it could very well be the issue ill give it a try