This is not a typo right, 307Amps?!
What creative maths have they done to get this number?
The PCB tracks on the motherboard are what, about 0.5mm thick and about 2mm wide (for the larger channels)? I can absolutely guarantee you arent getting 300+ Amps through those tracks.
Update: Thanks for the replies, it makes sense when dealing with these extremely low voltages and TIL a lot. Cheers!