The orange pi is an amazing computer for it's size. no bigger than a raspberry pi board, it pumps out a quad-core 2.2ghz processor and 1gb of RAM. It doesn't do much without an OS though so that's what i'm going to show you in this instructable.
Step 1: Get a Orange Pi (if You Don't Have One)
Visit http://goo.gl/D0FYcV to get a discount for the Orange P from GearBest its only $19.88, 61% off original price!
Step 2: Download Files
visit http://www.orangepi.org/downloadresources/orangepipc/oragepipc_e930546e866b23585721e5d2a6.html to download raspbian for orange pi
Step 3: Flash to Your Micro Sd Card
This step is simple all you need to do is flash the image to your SD card, using Win32Disk Imager
Step 4: Plug It in and Your Done!!
I couldn't get the CPU over 75% usage, just proves how amazing this PC can be!