Looking at a $300-$400 budget PC to have running 24/7. It's sole purpose will be to have PoS Crypto wallets running. The wallets don't require a whole lot of computing power so the PC would be similar to building a basic HTPC or very basic teamspeak server PC. I'm looking for efficiency and with the wallets running the PC would be next to Idle so I'm assuming the TDP would be 20-40w which is about $250 a year to run it. Here are the components I'm looking at, also I'm looking at getting a case with a PSU included to save costs however I am open to suggestions of purchasing a separate PSU if it's recommended since it will run 24/7 even on idle. CPU - Intel Celeron G3930 LGA 1151 Mobo - MSI H110M VH Plus mATX LGA 1151 RAM - Crucial 4GB DDR4 PC12800 2133MHz CL15 HDD - Western Digital 1TB Red 3.5" Case - Aywun 108 Micro-U3 with 420W PSU I'm also open to 8gb of Ram, I opted for a NAS over an SSD since it will be operating 24/7. Open to suggestions and changes and also any advice, also read that Linux would be a great OS over windows however I've never used Linux.