PART 3: CHEAP DOGECOIN MINING RIG

ADDITIONAL MATERIALS

We will need some additional materials due to the overcrowding of the GPU's in a traditional computer case. All three of the GPU's will not fit on the motherboard and certainly will not keep cool enough in a traditional computer case. So I have adopted a design from Crypto Badger. Below is a list of additional materials needed to build the rig.

3X PCI-E PCI Express 16X Riser
1/2W Watt 68 ohm 68R Carbon Film Resistor 0.5W (going to need 9 resistors total)
2X Plastic Storage Crates
8 to 16GB USB Thumb Drive
USB Network Adapter (unless your rig is going to be close to your router)
Square Self Adhesive Vinyl Bumpers
8" Plastic Cable Zip Ties
PC Power Switch
Something to rest the GPU's on

The end result will look something like this. All plastic crates are different, more than likely you will need to make some modifications to the crate in order for it to work, this will require some sort of saw. The resistors are to make dummy plugs for the video cards, if you don't have dummy plugs the OS will idle any card not hooked up to a monitor. The USB thumb drive is going to be the hard drive of the rig, running xubuntu. You will actually need two thumb drives at first, one with a bootable image of xubuntu and one blank 16GB one, or you can do the 16GB USB and an optical drive, hard drive, ect. The reason we use a thumb drive is to save on power use. The USB network adapter is only necessary if you cannot run an ethernet cable from your router to your rig. Vinyl bumpers are placed on the plastic crate underneath the motherboard. I used plastic zip ties to secure the GPU's to the crate and a thin 18" metal thing I found at Walmart to rest GPU's on. You will need a power switch to initially get the rig going, but later we will change BIOS settings to automatically power up, so maybe you can just temporarily borrow a power switch from a PC you already own.

Click here for instructions on assembly including a video.