|Most (but not all) new motherboards have an onboard speaker. If yours doesn't have one, you need to get one for the case. It's pretty tough to troubleshoot without the BIOS beep code feedback. Plus you should NEVER have mounted the board in the case without benchtesting it 1st, now you have no idea what the problem is.|
Start with the basics:
- do you have the 24-pin main ATX plug plus 4-pin ATX12v plug connected to the board?
- are you sure the CPU & HSF are installed correctly?
- is the video card fully seated in it's slot?
- is the 6-pin PCIe plug connected to the rear of the video card?
If all those things check out & you still don't get a display, read this:
How to Bench Test Your System