Chosen Solution

After taking it apart, there are 2 scorch marks on the heatsink lining up with these 2 chips. I know the chip at O9D5 is blown but im unsure about the other. Also where can I buy replacement chips for this? Thanks

@lividpenguin Reference designator is actually Q9D1 and Q9D5 and those are N-Ch 4C50 Power Supply FET’s. They are identical and you can get those at a lot of places but check on here