My lapped x2-3800 with a freezer pro 64 or whatever used to run at 24C idle, 37C load, oc'd to 2.6 on air cooling. Ambient temp was actually 25!. Granted, that was before the heat wave we've been having, but now it's running around 42C idle, 49C load. This has been a very, very slow process of the temps increasing over the last 4-5 months or so, however long it has been. I clean my case air filters regularly, and have inspected the hsf visually, and do not see any dust buildup whatsoever. I had considered the possibility of a loose connector/bad interface, but it hasnt been moved, bumped, or anything. Could the clip have loosened up? Might I just need to open it up, alcohol the crap out of it to take all the as5 off and start fresh? I am going to try that, but I just dont understand what would cause this gradual increase in temps, back to stock hsf levels, and dont want to 'fix' it only to have it gradually creep on back up to these high levels.. gotta keep my 2.6 overclock working nice and cool! Is it the interface material? It's not actually as5 it's antec's imitation as5.. (doh!) Thanks