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Never switch on the computer system until the fan is connected on to the motherboard power connector. STEP 1 Pre-installation Remove the transparent cover ° \ Ensure that all four push-pins are turned in the opposite direction of the arrow (picture C). Place the cooler on the CPU aligning the push pins into the securing position on the motherboard ( Picture D and E). STEP 3 O Ensure the surface of the CPU die is perfectly clean. Hi-performance thermal interface compound has been preapplie