can use ddr3 in ddr4 slot
PC Desktop DDR 2/DDR 3 RAM Memory Slot tester
This difference in notch position is also why you can't use DDR3 RAM in a DDR2 system or install DDR2 RAM into a DDR3 slot (even though they have the same number of pins).
Main Dual Xeon X99 Sniper Ram 3 4 DDR3 DDR4 8 Slot ...
Max 128GB, Supports ECC or non-ECC Memory, 4 Channel Memory Architecture * DDR3 and DDR4 memory can't be mixed. * CPU Support for DDR3: E5-2629v3 / 2649v3 ...
Laptop Memory RAM upgrade service in Ho Chi Minh City
DDR4 RAM is twice faster and the voltage is 20% less than DDR3. SSD storage ... So you can rest assured that your new computer can cope with extremes ...