Failing on BIOS boot may mean faulty hardware- maybe trying to interrogate faulty item. Only way to find out is disconnect ALL hardware when PC is off  (KB mouse / FD HD and CD internally/ external USB etc) and try to boot. You will get an error with no keyboard but you can see if it boots quickly. Power off, connect KB and boot, check, off. Repeat with each item.

NB you will need to disconnect IDE/SATA cable and not just pull the power. Loose power connector into HD/CD might also be the problem

Make sure you earth yourself on case before touching internal bits

Poser 11 , 180Gb in 8 Runtimes, PaintShop Pro 9
Windows 7 64 bit, Avast AV, Comodo Firewall
Intel Q9550 Quad Core cpu,  16Gb RAM, 250Gb + 250Gb +160Gb HD, GeForce GTX 1060