Beep codes for Z87E-ITX

Three long beeps is no memory is installed in the board. The board will be unable to start without any memory installed.

Three short beeps is considered a memory failure, but it can also be caused by memory incompatibility. A few other things can cause the memory to "fail".

Do you have a power cable from the PSU connected to the eight pin CPU power connector on the board? It is just below the black VRM heat sink, to the left of the CPU socket.

You must have at least a four pin CPU power cable from the PSU connected, or the CPU won't work. The memory controller is part of the CPU, which could explain the memory problem beep code.

What models of memory have you tried? Please post the full memory name, capacity, and model number. Are you mixing two different models at the same time? Also, whenever you change the memory or change the slots the memory is in, you must clear the CMOS/BIOS.

The memory you're using may be incompatible with the memory controller. You can't just use any DDR3 memory. Also you must be very careful when inserting the memory in the DIMM slots, if it is not fully seated in the slot, it won't work.