For anyone curious here is both variants of PS2 backwards compatible motherboards. Top is full BC, bottom is hybrid BC : r/PS3
ps3 fat motherboard | eBay公認海外通販サイト | セカイモン
HELP] i bought a used ylod ps3 fat 40gb, no card reader from someone. when i teared down everything, the motherboard has tantalum capacitors already installed. is this correct placement and amount