The 4GB is probably having trouble, more than likely f 1600 it's based on XMP where the Fury run off PnP - try starting with just the Fury sticks in slots 1-3 or 2-4 from CPU - boot to BIOS and raise the DRAM voltage + 0.05 and the CPU/NB voltage up to 1.25, save, exit, shutdown and add the odd stick, boot and see what happens