Mixing PC2-4200 and PC2-5300 on a Dell Inspirion 6400 Tags: Memory Notebooks RAM Dell Last response: May 26, 2007 5:12 AM in Memory Share zoromax May 25, 2007 1:21:39 PM Hi, I just bought a Dell Inspirion 6400 notebook computer that came with 2X 512MB PC2-4200 RAM. I just saw a good deal in Newegg for 1GB-PC2-5300. I have a few quesitons: 1. Can I just remove one of the 512MB PC2-4200 from the notebook and add the 1GB-PC2-5300 so I get 1.5G of RAM? 2. Will this hurt the performance since the MHZ is different being that PC2-4200 is 533 and PC2-5300 is 667? Thanks a lot in advanced! More about : mixing pc2 4200 pc2 5300 dell inspirion 6400 Mondoman May 25, 2007 5:04:15 PM 1) Yes, that should work. 2) No, the RAM you are buying is *rated* at DDR2-667, but the computer will run all installed memory at the same speed, chosen to be compatible with all installed memory (in your case the speed should be DDR2-533). zoromax May 26, 2007 5:12:04 AM Great! Thanks for the answer! Can't find your answer ? Ask ! Publish Related resources : Forum2 gb pc2-5300 vs 1 gb pc2- 6400 ForumDell E510 CPU Upgrade? ForumBest RAM for old dell ? Forumupgrading a Dell Dimesion E521 CPU question ForumDell Inspiron 6000 Memory upgrade ForumAdvice on a specific upgrade please... ForumPC2-3200 to PC2- 6400 ForumWhat kind of bottle neck with Dell Inspiron 530 (q6600) and HD 5850 ForumMEMORY FAQ (please read before posting) ForumUpgradinga dell dimension 4700 ForumMEMORY FAQ (please read before posting) ForumMemory upgrade Dell Optiplex GX620 ForumWhat Memory is Compatible With Dell Optiplex GX620 ForumE4300 800mhz - what RAM to use? ForumDell gx280 ram upgrades ForumASUS P8z77-V Question???? ForumAnother stupid mixing RAM question Forummixing memory issue 667Mhz and 800Mhz ForumMixing RAM ForumNoob Needs Immediate Help Upgrading Dell Inspiron Memory! More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !