1. From each of my case fan, there is a wire that is connected into something, and from that something there is a molex and a male connector. What do I do with these? Also that wire connected looks like if I unplug it, I could connect it on my Motherboard CASE_FAN pins.
2. On my P6X58D-E, is it a 4 Pin ATX or 8 Pin EPS. What is see is 4 pin slot, but it looks like there is a black thing I could remove (R20 written on it) and maybe plug a 8 pin.
Yup, if you have a spare 3 pin socket on your mobo, you can plug it straight in and keep the molex adaptor for 'future use' ie, bang it in a drawer, the 4 covered points on the cpu power socket is if you have a 4 pin, you use the uncovered 4 pins, if you have an eight pin from your psu for the cpu, take the sticker off a use the 8 pins, I think its to avoid confusion over which 4 to use if you only had a 4 pin from psu