I just build a new liquid cooler with a massive 560 radiator. really big one.
now I have two cpus, a delided 7980XE, and a 9980XE, both was boxed.
my new cooler can easily hold 7980XE oc to 4.8G and 3.0G mesh, even I try use prime95 to stress it, option 2, maximum heat and power consumption...