ddr4 on ddr3 slot: Can i upgrade ddr3 to ddr4 in my acer e5-576g-59q9. Asus TUF GAMING B660M-PLUS WIFI D4 FCLGA1200 ATX Motherboard : ... . Use DDR4 RAM with a DDR3 board? : r/buildapc.
First of all, a DDR3 laptop RAM module can’t physically fit into a DDR4 laptop RAM
slot and vice versa. Notches on the connectors of memory sticks are on different places.
DDR4 is not backward-compatible with DDR3 so a DDR4 DIMM will not fit on a DDR3
DIMM slot. Not only is the key notch of each DDR generation different (please refer to Figure 1 above), but the DDR4 pin size and arrangement is different from DDR3.
I'm looking to get a RAM upgrade for my SONY VAIO VPCEH25FM. If I get DDR4, is it compatible with a DDR3 slot?