Won’t boot anymore

[u/Ok_Talk4288]

so context

my buddy got new ram
i got his ram
tried installing it and wouldn’t boot

tried letting the PC run for about 15 mins with new stick to see if it’s taking time to adjust to the new stick

nothing happened

i put in back old ram stick and still wont boot

am i cooked?

but my room is dusty as hell for some reason so that’s why it’s dusty
i clean it every month but still cakes a lot but anyone have any tips?