Can I use PC2700 DDR 333 on a PC2100 mainboard? Tags: Memory DDR RAM Last response: February 20, 2005 8:01 PM in Memory Share eric1i February 19, 2005 6:57:29 AM Hi, Is it possibile to use a 256M PC2700 DDR RAM on a monther board which only support PC2100 RAM? I know the performance will down. but can it run? Thanks! More about : pc2700 ddr 333 pc2100 mainboard kozaki February 19, 2005 8:21:42 AM your new pc2700 RAM will run, but not at it's designed clock. Chance are big it will run @ 133MHzx2 (pc2100), but on few case it may run a little less for stability issue. There are other posts answering that question on this board, with higher english/technical level than mine Internet <=> Share all we can. jammydodger February 19, 2005 9:30:47 AM All DDR RAM is backwards compatible with lower speeds so it will work in your board. However it will lower its clock speed to 133Mhz (266Mhz DDR). Related resources PC2100 versus PC2700 - Forum Upgading from PC2100 DDR to PC2700 DDR - Forum DDR PC2100 CL2 vs DDR PC2700 CL2.5? - Forum Is it possible to use DDR 400 with FSB 333 mhz with ASUS A7V.. - Forum DDR PC3200 will or wont work on pc2700 compatable - Forum Can't find your answer ? Ask ! Get the answer eric1i February 20, 2005 1:02:22 AM Thank your guys so much! earthling February 20, 2005 8:01:36 AM yes will work properly with lower clock speed anyway TC10284 February 20, 2005 8:01:07 PM Yes, it should work just fine. However, the new stick will just clock itself down to the slowest memory stick's speed. Tavis Curry Can't find your answer ? Ask ! Publish Related resources : ForumPC2100 vs PC2700 Toshiba Laptop Computer ForumA7V 333 and PC2100 DDR RAM ForumExplain CL2.0, PC2700 , DDR333 etc. to me please... ForumDifference bewteen PC2100 and PC2700 Memory ForumPC2700 vs PC2100 ForumPC2100 or PC2700 ??? Forumpc2700 cl2.5 or pc2100 cl2? Forum768MB pc2100 or 512MB pc2700 ForumHow do I confirm I have PC2700 and not PC2100 ? ForumWhat's a good company for DDR333 PC2700 DDR RAM? ForumCrash at startup with pc2700 512mg on the A7V 333 ForumPc2700 compatobility issues with Asus A7s 333 ?? Forumi845G chipset and DDR333 support?? ForumWorth getting an Iwill XP 333 mobo w/ PC2100 RAM? ForumNo RAID access on Sabertooth z77 ??? More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !