I have here an old 370DLE Board, wich works fine since 3 years (only with one CPU P3/1.0 GHz). Now I would upgrade this board with a second CPU (same type like the first CPU). But always after power-on, i hear a long beep-tone for ca. 2-3 seconds and the system hang. When I put one CPU off (cpu1 or cpu2), the system works fine again. With booth cpu's, I hear only the long beep. What can i do ? The BIOS is updatet. Stefan P.S.: Sorry for my plain english