http://picx.xfastest.com/nickshih/asrock/AFDSetup(v3.0.92.1).rar
Boot at 102,9375 from bios and use that AFD to set 102,97XX (The last one before 103)
Clockgen divider 12 , pll ort =32 , clockgen voltage 3.6 (safe limit) , cold bug killer 1.8 , vccpll 2.5
3866x102,9375 mems 12-12-12-28 220 1T 49/50 6/6 should give you 698 with good OS