MiSTer FPGA Forum

Posted: **Wed Jan 25, 2023 3:39 pm**

Why is my NES core just a grey screen?

I change it over to PAL, and then it's a black screen. I tried to load a game (Mario) and nothing happens.

Posted: **Wed Jan 25, 2023 4:04 pm**

Do you have a BIOS? Is it named properly?
If not Readme to the rescue:
https://github.com/MiSTer-devel/NES_MiSTer

Posted: **Wed Jan 25, 2023 6:15 pm**

Sounds like either you don't have sdram, or you didn't load a game.

Posted: **Wed Jan 25, 2023 6:37 pm**

Are you using unheadered roms by chance? The NES core relies on rom headers to set console up.

Posted: **Wed Mar 08, 2023 7:20 pm**

TLPD-AVW wrote: ↑Wed Jan 25, 2023 6:37 pm
Are you using unheadered roms by chance? The NES core relies on rom headers to set console up.

Ah yes, thanks.

NES Grey or Black Screen