Continuous beep My Aopen MX3L motherboard is getting a continuous long beep then it pauses and then repeat. What does that mean?

This is most likely a memory error. You didn't say if you've done any work inside the computer but if you have double check that the ram is seated correctly.

You bios is award and these are the beep codes:

Beep code brief:
1 Long Beep: Memory problem
1 Long Beep and 2 Short Beeps: Video error
Continuous Beeping: Memory or video problem
Any other beep pattern: Most likely Memory problem

1 long Beep: Memory problem
Something is wrong with the memory installed. Check out the troubleshooting memory problems FAQ for details. Note that there could also be something wrong with just accessing the memory (ie the motherboard has a problem).

1 long beep, then 2 Short Beeps: Video error
The motherboard is not able to access the video card for some reason. Either the video card is not working, it's memory is not accessable, or it's BIOS may be corrupt. This error code could also mean something is wrong with the motherboard.

Continuous Beeping: Memory or video problem
This is a tricky situation... likely the problem is either memory or the video. This can also be found when the motherboard is faulty.