Hi there all... Iv got a problem with my new Black Edition RAM from AMD OCZ PC3-12800 AMD Black 2x2GB OCZ3BE1600C8LV4GK timings are 8,8,8, 24 1600MHz @ 1.65 Motherboard is Gigabyte GA-890GPA-UD3h Out of the box both DIMMS plugged do not work. One DIMM with all ram settings in the bios set to "auto" will work in any DIMM slot. THe second DIMM will not work by itself in any DIMM slot at settings set to "auto" If i install the one DIMM that works i change the Voltage only and increase to 1.65V THEN both DIMMS installed will work. I then have to increase the voltage .1 at a time to increase the speed. both DIMMS runing @ 1.68v 1333MHz Question 1 - Why do i have to increase the voltage for the RAM in order to make both sticks work? Question 2 - Why does the one specific DIMM not work by itself but when paired with the other one it does.? Sorry for the long post but any help or insight would be greatly appreciated Thanks all.