I Have installed a DH77KC with a I5 3550K and Corsair memory, everything was running fine but after one week when starting 3 beep and computer restarts, anyone that know what 3 beep means..
To answer your question, three beep codes stands for a memory problem. Here are our recommendations:
-Test the system with minimum memory installed. Test each memory module individually on each memory slot one at the time to narrow the issue properly.
-Ensure the memory you are using is rated at DDR3-1333/1600 1.5V