Hello all, I have a X99-A with a 5820K@stock. It's been working pretty well as an editing workstation for many years. In the past weeks it has been doing weird stuff: - Reporting ridiculously high values in the 12v input (between 13v~20v). This shows both in BIOS interface and AI Suite 3 as well. - Randomly refusing to boot from a cold start. Things I've tried: - Replaced PSU. - Reset BIOS settings by unplugging battery. - Flashed latest BIOS (3801). Aditional info: - When it boots, aside from the weird 12v values, it works pretty well. - All temps look good in AI Suite 3. (CPU@34C, VRM@53C, PCH@35C, MB@30C). - I don't have another X99 MB or compatible processor to test Whole configuration: - 5820K@stock, never OC'd - 4x8GB 2133 DDR4 - GTX680 - 240GB SATA SSD as system drive. - 240GB SATA SSD as cache drive. - 4X2TB in RAID 10 as media drive. - BlackMagic Mini Monitor PCIe card. - Corsair RM750X PSU. - Corsair 760T Case. - Windows 7 Pro x64. Any help will be appreciated, thanks!