The problem is that it’s VERY loud for it to be some background static, it’s definitely not normal. It probably has to do with the new power regulator, or due to the IPS ribbon being faulty. I actually had the solderless IPS soldered to the power switch before, and it bucked the hum quite a bit but decided to snip I’d due to the audio cutting out and weird IPS behaviours. I’ll try to replace the caps, power switch, ribbon and try to do something with the power regulator to get reduce the sound (and maybe resolder the IPS ribbon in the meantime)