Can I install DDR2 PC2 -6400 in place of DDR2 PC2 5400? Tags: Memory DDR2 RAM Memory Upgrade Last response: June 24, 2012 10:27 PM in Memory Share Anonymous Memory Expert April 4, 2012 11:48:59 PM HI all I have been posed a problem with a memory upgrade, I have a 1GB strip of DDR 2 PC2 6400 ram that if possible will replace 512mb of DDR2 pc2 5400 ram. I am aware that I could not run the two strips together, however I am not sure if the increase would cause problems. The Laptop is an "LG M1 express dual laptop" and as I am aware the 512mb ram is original. would any one know if this was possible or would it cause problems ? More about : install ddr2 pc2 6400 place ddr2 pc2 5400 | E-mail me updates | Report abuse Register or log in to remove jemm Memory Expert April 5, 2012 12:16:33 AM You can up to 4.0 GB DDR2 SDRAM 667.0 MHz | Report abuse Anonymous Memory Expert April 5, 2012 2:12:21 AM jemm said:You can up to 4.0 GB DDR2 SDRAM 667.0 MHz thanks jemm I thought it was possible but I just needed to check , thanks again | Report abuse fmydog June 24, 2012 10:27:42 PM thanks i just preformed an upgrade and this helped me make the decision to pull some ram out of a toshiba and move it to my make the thing was it was pc2 6400 not 5400 so i was cautious. it all worked out and i am up in running THANKS | Report abuse Register or log in to remove Ask the community Publish Tom's Hardware>Forum>Memory>Can I install DDR2 PC2 -6400 in place of DDR2 PC2 5400?> Related ressources: ForumPC2 5300 or 5400 .. and other Q's about DDR2 Forum2GB (2x1GB) DDR2 800 ( PC2 6400 ) or 4GB (2x2GB) DDR2 667 ( PC2 5300) ForumNewbie Memory Question about my G SKILL DDR2 800 ( PC2 6400 ) ForumWTB: DDR2 800 PC2 6400 ForumRam is only showing pc2 5400 , I have 6400 ?? help please ForumASRock 775Dual-VSTA - DDR2 PC2 5300 or 5400 ? [UPGRADING] ForumDDR2 PC2 8500 1066mhz read as PC2 6400 800mhz ForumFS: 2x 2gb (4gb) Crucial Ballistix PC2 6400 DDR2 800 RAM ForumDDR2 800 ( PC2 6400 ) vs. DDR2 1066 ( PC2 8500). Forum[Never opened] SUPER TALENT 2GB (2 x 1GB) DDR2 SDRAM ( PC2 6400 ) Forumanyone uses G.SKILL DDR2 800 ( PC2 6400 )? ForumWill this mobo run PC2 5400 ForumWhat is difference between a 1 GB 2Rx16 PC2 6400 S -666-12 hynix laptop ram and1 Forumddr2 pc2 vs. ddr2 pc memory Forumpatriot viper extreme performance 4gb ddr2 2x2gb pc2 6400 ddr2 800 cl 4 4 4 12 ForumDDR2 800 ( pc2 6400 ) clocking lower then 400mhz ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumNew 8gb DDR2 memory conflicts with video card? ForumCant install mouse ForumDDR2 or DDR3 More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !