The last thing I had to do to the Dreamcast was replace the internal battery. This keeps the consoles clock from resetting every time you turn the console on. Also change the controller board capacitor (possible dry cap). Cheap £5 mod plus a rechargeable battery. This replaces the soldered in permanent rechargeable battery with the convenience of a slot to make replacement easy. There is also a resettable fuse added incase for any reason it blows you can switch the console off for 30sec and it will then start working again. Fresh battery’s in the VMU so no long beep on start up, the console is now totally silent.
#battery - 11 days ago