Hello Usef, to properly diagnose your problem, I'll need more information from you.
- Bios type
- Computer brand
- Computer Model Number
- Any recent changes you may have made
A quick google search yielded 9 long beeps as being a faulty ROM chip if you have an AMI bios. Because there are so many different bios' there is no uniform beep code. Hope this helps.
Best of luck,
Gary