Sometimes a test run for PC geek is required before completing PC, but bare motherboard on your desk is feared a short circuit on board pattern, which leads to destroy your important components, memory, board itself, and expensive CPU!! This small test bed, put on the back of your motherboard, is easy and certain solution for these problem. Each parts are a parted, and board size is universal from mini-ITX to E-ATX. This small amount of expense will protect your valuable components!!!! Putting double-sided adhesive tape on their bottom also enables to make your original computer case for long-time use! The source file contains 9 parts, which is enough for E-ATX and more.