GIGABYTE Z790I AORUS Ultra (LGA 1700/ Intel/ Z790/ Mini-ITX/ DDR5/ Dual M.2/ PCIe 5.0/ USB 3.2 Gen2X2 Type-C/Intel Killer Wi-Fi 6E/ Intel 2.5GbE LAN/Q-Flash Plus/Motherboard)

Most of the information needed to install is in the User Manual at Gigabyte.com, removing the board that the SSD (Samsung 990 PRO) plug into hung me up until I discovered the front panel audio connector stopping the BTB board from being able to be removed. In the rear of the manual it shows the cable, plug folded up and how to re-route it. Section 10 explains the M2A_CPU / M2P_SB, basically the very bottom socket is direct to the CPU PCIe buss, the M2P_SB or top socket is hooked directly to the support chip. My build is based on my first build 4 years ago (i5-9400) in the same ITX case, small it better with liquid cooling and minimum wattage/heat, this after building a dual core, dual video controller monster computer that could heat the house... My new build has an Intel i9-13900K, 64GB DDR5 5600MT memory, two Samsung 990 2TB NVMe M.2 devices, 1,000 watt modular power supply, 4 USB 3.2 GEN 2 connectors in the front off the internal USB32_C connector + 2 USB 3.0 GEN 1 on the front panel. The bios has many setting, the fan control is amazing as is the lighting settings. There is desktop apps that can setup everything so DO NOT download anything from Gigabyte.com but the mb_driver_660_killerwifi_(version).zip, the first time you boot into Windows it downloads the GCC which will install everything but first you have to get access to the internet. When you install Windows 11 the first time it boots it will try to setup your network, you'll need mb_driver_660_killerwifi_(version).zip un-zipped to mb_driver_660_killerwifi_(version).exe on a USB thumb drive and Ctrl+F10 to a command prompt to run mb_driver_660_killerwifi_(version).exe and install the Killer AX WiFi drivers, windows will then find your hotspot and allow you to continue setting up the computer. So far nothing in the new computer feels hot except the heat shields on the memory, the one closest to the CPU run at 87°F the other one at 86°F and I can't hear any fan except during power on for a second or two. I will be installing a 14TB 3.5" HDD for video files, when it arrives.