According to the manual, "9.0." states:
Complete μGuru initial process
AWARDBIOS take over booting job
Probably your CPU is too new (it is 45nm) and your BIOS is old (probably original version 10 BIOS), or you have a bad flash on the BIOS chip. Code 9.9. is "complete power off sequence".

If you can find a friend with an older 65nm architecture processor, drop in that chip and flash BIOS to latest 18ZZZ I posted a few posts above and hopefully you will have no issues running your E8400.