i have a gigabyte ga-970-dsp3 motherboard that wont boot with all 4 ram slots filled. using ddr3 pc3-14900 in all slots. tried upping the voltages in the bios but even after doing that it gets to the windows screen but never progresses any further. i have tried all voltages between 1.5 and 1.9v but nothing seems to help any ideas?oh and each slot does work by itself and when at at least 1.75 v the bios will recognize all 4 slots and chips. so i am not to sure what is going on that it wont boot to windows. running win7 ult 64 bit