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 a b } Memory 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 jemm a b } Memory April 5, 2012 12:16:33 AM You can up to 4.0 GB DDR2 SDRAM 667.0 MHz Anonymous a b } Memory 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 Can't find your answer ? Ask ! Get the answer 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 Can't find your answer ? Ask ! Publish Related resources PC2 5300 or 5400.. and other Q's about DDR2 Forum ASRock 775Dual-VSTA - DDR2 PC2 5300 or 5400? [UPGRADING] Forum SolvedCan you use dual channel in a laptop with regular ddr2 pc2 5300 Forum Solved ddr2 pc2 vs. ddr2 pc memory Forum memory DDR2 PC2 Forum WTB: DDR2 PC2 Desktop RAM Forum Pc2 ddr2 8500 1066mhz 8gb bottleneck phenom II x6 3.3ghz Forum Getting PC2 - 8500 OCZ BLADE DDR2 DIMM recognized as 1066 Forum [TEAM Extreem] TEAM Xtreem 4GB (2*2) PC2 8500 DDR2 Dark 1066MHz CL5 Forum Q6600, P5K-V, DDR2 1066 (PC2 8500) Help Forum i have ddr2 800 (400).. but it shows pc2 5300 ddr2 667 (333) Forum Corsair Dominator PC2 10000 DDR2 1250 Forum A-DATA V-Series DDR2 533 PC2 4200 Ram Forum DDR PC 3200 Vs. DDR2 PC2 3200 Forum PC2 5400 and xp home Forum Will this mobo run PC2 5400 Forum Asus P5KC + OCZ PC2 5400 2GB Forum Can I put PC2 5300 512 in the place of PC3200? Forum SolvedCan i run ddr400 in place of ddr2 Forum SolvedHave DDR2 RAM Can i install DDR3 RAM ?? Forum More resources Read discussions in other Memory categories Compatibility DDR2 DDR3 Dual Channel RAM Corsair G.SKILL !