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    Better overclocker: Phenom II X2 550 or Phenom II x3 720?

    The Phenom II X2 550 and Phenom II x3 720 are roughly the same price. Is there any information on which is more likely to have functional "extra" cores or overclock to higher speeds?
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    Two fans - same CFM, different static pressure - how is it possible?

    It seems to me that in order to make air move, you must create a pressure void. Air will then move from the area of higher pressure to the area of lower pressure. If a difference in pressure makes air move, then it should follow that two fans with the same cfm rating should have exactly the same...
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    Which mid-end power supply?

    I'm looking for a mid-end power supply for the following low-end system: Radeon 4870 Phenom II X4 3.8Ghz 4x Seagate Barracuda 1.5 TB hard drives 300W video card + 150W processor + 80W hd spin-up= ~600W should generously exceed what I need. I've narrowed it down to the following PSUs: Cooler...