Tuniq Tower and Q6600 problems

[Smartazz]

I've been using a Tuniq Tower 120 on my 3.2GHz Q6600 for over two years and it kept it pretty cool. I recently had to move the computer a few hundred miles so I took off the massive heatsink. Last night I attempted to reinstall it and reapplied some Arctic Silver on it in a horizontal line. No matter how tight I make the thumbscrews the heatsink physically feels loose and my temperatures are getting to 100C and shutting down my computer. I'm certain it's loose because when I push down on the top of the tuniq tower, the CPU temperatures come into line again. I also ran the Q6600 underclocked at 1.86GHz at 1 volt and under load it stays below 60C so there's clearly some contact between the tuniq tower and my Q6600. Any advice on how to fix this? Thanks in advance.

 

[Slugbait]

It's been a long while since I installed my TT120, but I think I had a similar problem and started over. After getting the initial threading for all four screws, I alternated in single revolutions for each. I think I went upper-left->lower-right->upper-right->lower-left. As the screws got taught, I reduced to half-revolutions for each screw until all four were tight enough. No wobble, and my C2D/EE temps at 3.4 were below the proc's expected temp for all-stock, so I considered it a success. Didn't pull it off for three years, daily driver.

 

[Slugbait]

Also, you might wanna check the backplate and make sure it hasn't come loose or is angled at all from the plane of the mobo.