Hey mate . Congrats on your Amiga 3000 . I have always wanted one , so im jealous now .. hehehe
Did you check / remove the internal RTC battery ?
If it still has the original barrel type battery i would remove it quickly , even if it isn't leaking and replace it with the newer CR type battery/holder . You can buy these replacement kits from Amiga sites like redsretro , amigakit etc....
But do remove it . There is an extremely big risk of it damaging your motherboard . Believe me it is not a pretty site .
Anyways i wish you the best time with your new baby .
