I'm at a dead end, so far. I have a FEW 7050 MT systems here. Just bought 2 barebones boxes to rebuild. I always use: Kady Lake i7-7700 Intel Core, 32 GB Hynix ram, AMD Radeon r7-450 video. I bought 2 motherboards on eBay and both are giving me the "2-7" amber light code. Possibly BIOS needs flashing!? How can you flash the BIOS if you can't get into the BIOS? I'm lost and need a little advice here. Thank you.