Hi All,
After a failed attempt to create a thermally activated fan controller for my rig, I've got a problem. The CPU temperature no longer returns to an idle reading after loading. I did some swapping of fan connectors and may have knocked the heatsink.
Using an AC Freezer Pro 64, My X2 BE 5000+ used to do about 55°C under load and 30°C idle. Now it's about 34° initially and gradually gets warmer. I've turned off a few times to avoid it getting over 60°C. The trouble is, it doesn't drop back down to the 30s. It stays at a couple of degrees short of the maximum load temperature until I turn off the rig. The fan works and the heatsink gets rather hot to the touch - not quite finger burning but not far off.
The attempted mod involved placing a thermistor along the 12v line of the CPU fan header, placed on the lower copper part of the freezer pro below the heatpipes. The fan didn't spin but only twitched a little and something made a whiney noise while it twitched. I let it run for a while, expecting it to spin up as the CPU got warmer but it didn't.
Does this sound like I've just reduced the CPU heatsink contact to you or something worse? Motherboard voltage regulators? PSU? Going to try re-seating the heatsink tonight.