bios and boot problems 365xd

my 365xd has no 3.5 just a cd-rom and theres no symbol for it in the boot sequence in bios,But my main prob is that when booting its reading 301,173,163 and that there is invalid system disk and 3.5 indicater is on when i dont have one.the bios ver.is 1.24 setup is 2.00 any help would be greatly appreciated