>>1471958>Couldn't find it for this specific modelThey don't do different beep codes for each model. Can you imagine how much of a nightmare it would be for a technician if they used a set of 12 beep codes, which is the size of the set, for each of 20 different models or 50 models?
Your motherboard uses AMI bios. If you still can't find the GB beep codes you have a problem.
>could it be because of cmos battery failure?Yes. Pull the battery. The main purpose nowadays is to keep time.
Pulling battery will reset settings. If it boots at all you may need to enter bios and set the drive boot order because you may not have it plugged in to the default port. Easiest thing is to pull all the drives except your boot drive and plug it into port 0. You can easily change boot order once you're in bios settings.
If computer still won't boot into bios and won't display anything on your monitor it's probably a faulty motherboard component. You'll need to replace that component. It's often cheaper to buy a new motherboard and cpu and power supply than paying someone to identify the faulty part, pull it off, and find a replacement component.
Good luck. Be prepared that you need new hardware because your existing motherboard has failed to the point of being uneconomical to repair.