@eric @not_benis @menherahair @munir @kirby
Nah, I have a Dual one — linux kernel still detects some pumps, and always detects malfunction in them, but as windfarm module for the G5 looks like it was coded by a schoolkid, I think it's just a bug.
Sometimes this fact makes me suspicious of it, but no — I've never seen anything that looks like a pump in it, maybe it's somewhere deeper in this model, but I'm too scaredy cat to get into its CPU assembly, it looks so tight that I might never be able to reassemble it back.
But anyway, some Duals and newer Quads didn't have leaky cooling systems, the liquid would still be no good probably and would need a replacement.