My ram is ddr1 is ddr2 or ddr3 compatible Tags: Memory DDR2 DDR3 RAM Compatibility Last response: January 9, 2013 7:25 PM in Memory Share kanav_16 January 9, 2013 12:31:36 PM my ram is ddr1 can i add ddr2 ram and my processor is core 2 duo More about : ram ddr1 ddr2 ddr3 compatible Xttony a b } Memory January 9, 2013 1:41:54 PM You cannot add DDR2 or DDR3 when your motherboard only supports only DDR memory. Your processor can support DDR3 InvalidError a b } Memory January 9, 2013 2:55:26 PM Since the MCH on LGA775 is in the chipset, the chipset determines what memory types are supported. I do not remember LGA775 boards/chipset ever supporting DDR1 but some of the last chipsets for that socket did support both DDR2 and DDR3 with some motherboards having slots for both types. However, even on hybrid boards, only one type of RAM can be installed at any one time due to incompatible timings and voltages. Can't find your answer ? Ask ! Get the answer Snowsniper2 January 9, 2013 7:25:57 PM I have one board that runs an old 775 pentium 4 as the highest that runs DDR1 ive never and i mean never seen a core 2 duo run ddr1 ram Can't find your answer ? Ask ! Publish Related resources Will a GPU with a DDR2 memory compatible w/ a motherboard w/ DDR1 ram Forum Command in XP to know the RAM whether it is DDR1 or DDR2 Forum Question: Will a GPU with DDR2 memory compatible with a motherboard with DDR1 ra Forum Can a core 2 duo processor support both ddr1 and ddr2 ram Forum DDR1 and DDR2 compability? Forum Difference between DDR1 and DDR2 Forum Mw2 ddr1 upgrading video card Forum DDR1 DDR2 AND DDR3 MEMORY CAN USE IN MOTHERBOARD AT A TIME? Forum Will ddr1 graphics cards work in motherboards that suport ddr2 Forum DDR1 , DDR2 Forum Will a ddr2 agp video card run on a ddr1 agp slot Forum DDR1 and 2 DDR2 slots on the same Motherboard? Forum Salvage/Upgrade from Athlon 64 3500+ DDR1 era system to DDR3 system Forum What motherboard is compatible with ddr1 or 2 Forum Overclock Pentium d 805 with ddr1 ram only Forum DDR1 ram in a new mobo/cpu? Forum Will DDR1 Ram work with a new MOBO? Forum "Reboot and select Proper boot device" Forum Ddr2 ecc registered 1Gb HP: xw-4200 Forum Ddr2 800 help Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !