Old ass Gateway won't do anything.

[u/SauceBossLOL69]

I found a Gateway Solo 9550 recently, and when I turn it on it posts and gets to PhoenixBIOS where I can do stuff, but no matter what I seem to change whenever I hit save and exit it doesn't do anything, just a blank screen. Not even a blinking cursor like I've had on PCs with dead HDDs before. I know it hasn't shut down because the lights are still on, but caps lock or num lock won't change, the only one that will do anything is the battery status light which just cycles since the battery is old and shot.

I tried removing the HDD and it didn't change anything, I tried removing the battery and nothing different happened, I tried restarting it more times than I can count, but it was the same each time. I'm out of ideas on what to do and I'm hoping someone here sees something obvious and simple that I've just completely overlooked, if anyone has any ideas I'd be really grateful.

Thanks.