A1990 820-01814A U1200 very hot when powered up, USB drawing > 4A

[abajor]

I have this machine. It powers up and gets fan spin, will even shut down when I hold the power button.
U1200 gets very hot under thermal camera, the next hottest region is UB000 and L7030. I'm assuming L7030 is warm due to charging.

Do I have a potential dead CPU? or just a dead U1200? Not sure what to check since everything is powered up.

[FriedFred]

The U1200 gets very hot because it has an internal short circuit. Or this IC is being short-circuited by a downstream component. I don't know what the U1200 IC's function is, but you can find out, especially if you have a thermal imaging camera, where exactly the short circuit is coming from. Apply a small voltage to various points on the U1200. If every time the short-circuit current set on the power supply flows, only the U1200 gets hot, the U1200 itself is damaged. However, if the short-circuit current flows and the U1200 doesn't get hot, the short circuit must be in a downstream component.

[abajor]

The U1200 gets very hot because it has an internal short circuit. Or this IC is being short-circuited by a downstream component. I don't know what the U1200 IC's function is, but you can find out, especially if you have a thermal imaging camera, where exactly the short circuit is coming from. Apply a small voltage to various points on the U1200. If every time the short-circuit current set on the power supply flows, only the U1200 gets hot, the U1200 itself is damaged. However, if the short-circuit current flows and the U1200 doesn't get hot, the short circuit must be in a downstream component.

Its not the only thing that gets "hot" but it's the hottest thing on the board as can be seen in attached thermal image.
U1200 is "System Power Management".