laptop stops receiving power from adaptor when gpu at high usage

model : acer predator ph315-53 i7-10870h rtx3060 (105w), 32gb (2x16) ram, 230w power adaptor
facing this issue recently when playing high gpu usage games like cp2077, control for 10 mins. the laptop goes to non-plugged in state when plugged in. the battery/charging lights start to flash and fps drop (which is natural because the laptop runs as if on battery even when plugged in)
then removing and reconnecting the charging pin restores it to plugged in state and fps levels get high but again after 5 mins. it goes to on battery state, this keeps happening if playing the game. when game is closed everything gets normal. this problem does not occur in csgo, because gpu usage is less in it.
I got the power supply ic on the motherboard replaced and the problem seemed to be fixed for a few days but then occurred again. Earlier I used to play these games for 3hrs+ continuous with no problem. Could the fault be in the power adaptor or motherboard?