Hi, i don't know if this is the right place to ask, but I can't find the solution else where. I changed legacy to uefi rom and my pc hung just like you, but I can't reset bios with either the jumper or taking out the battery. I'm not experienced with hardware, so I don't know what to do. Could you help me please? I'm using p8z68 v pro, xeon e3 1230 v3 with gtx 1050. Thank you.