"hot" chips usually means over-voltage. The chips you mentioned do not even get warm in my Amiga 3000.
If the battery has leaked at all, then you will have problems with the Amber circuitry, even if you have removed the battery and cleaned the area. When the corrosion starts, it is like a cancer. It will continue to slowly eat away at the traces. This is why it is so important to find an Amiga 3000 motherboard with a battery that has NEVER leaked and remove that battery. Amiga 3000 motherboards like that are hard to find and command very high prices.
The Amiga 3000 computer was never really designed for expanding it. That is why it only has a 135 watt power supply. The most popular expansions people added to thier Amiga 2000 computer was Ram, SCSI, and processor boards. So, Commodore included all of that on the Amiga 3000's motherboard. They also included a FF/SD. Commodore did not think that people would need to install anything else, hence the 135 watt power supply. Amiga 3000s run nice and cool if you do not install any boards. The more boards you install, the hotter it runs. The Amiga 4000 is the same way, just not as bad as the 3000.
If you want to add a bunch of boards to an Amiga computer, get an Amiga 2000, 3000T or 4000T. These three Amiga models were actually designed to be expandable.
