(In reply to Uwe Michael Scheffer from comment #13) > Today, I tried with a different SSD (of exactly the same type) on a > different ThinkPad W530 (same type, too) and got similar results, however > not quite the same. Leap-15.4 neither on btrfs nor on ext4 would reach 45���C > and the fan would never relax to level 0. So with Leap-15.4 there was always > the 60���C idle temp issue. The above is inconclusive. You may try latest Fedora.