Yes. If you remove some Arctic Silver and the temps go up, you likely do not have it sitting flat on the CPU. Did you place those little feet in the wrong plce (might be sitting on something around the core). A capacitor in the way is possible. Also It might be possible it is on wrong (most heatsinks are notched out on the bottom to overhand the chip and still clear the socket on one end. The fan should be blowing into the heatsink, but that would only make a few degrees differance. It might be the heatsink base is warped or the clip is damaged.
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