What you are looking at below is images (poorly taken) of an HP Pavilion p6714y that has been converted to a Burst Coin mining rig. Burst coin is a crypto coin mined via empty hard drive space. The way it works is you plot your hard drive, set up your miner, and start mining. Plotting your hard drive writes the answers to the equations asked by the blocks, normally with traditional crypto, the block calls the equation and your CPU or GPU or ASIC if you happen to have one, solves it. With Burst Coin, the CPU or GPU, yes you can plot with either, does it once and saves it to the drive and when the block asks the equation, the miner simply reads the plot and submits the nonce. This mining rig only has 5 TB but that will still make a bit of extra passive cash.