A few years ago I pulled my PDQ out and the fan had started running constantly. I unplugged it. Perhaps because I live in Canada or not, I have never heard the fan come on under any load and I had actually tried using it on soft surfaces at some point in the past. The fan in my Lombard also ran constantly. IDK what was up though it had other issues to begin with.

Do I remember there actually being thermal compound in the WS/PDQ, Lombard, and TL iMac? Between the CPU die and heatspreader I mean..(the black disk on the CPU)

Or was that a little metal shim with an equally thin thermal pad on one side? I forget. these G3s are pretty tame anyway.