Hello,

I found my old OptiPlex GX620 from the garage and decided to boot it up and see what cool stuff I'd find from there. Although I can't boot it up. I remember it had no issues before placing it to garage. This is what currently happens:
It says that the battery voltage is low & previous fan failure.

Another issue is that it doesn't recognize my USB-keyboard (Gigabyte Force K85) (The compuiter doesn't have the PS2 port, although I have a PS2 keyboard as well). My keyboard's lights start up & the Num Lock stays on but I cannot press anything.

I have attached the images of the screen that appears.

Any advice is appreciated!