5300 or 6400 Tags: DDR2 RAM Motherboards Last response: November 7, 2011 1:21 AM in Motherboards Share masterjedimatthew November 7, 2011 12:36:35 AM I have 3GB of Ram, I'm looking to upgrade to 4GB. What i'm hung up on is which way to achive this. The way I see it I have 3 differnt opptions and help or advice would be apreciated. Computer Sony VGN-FZ340E Windows Vista 32Bit Home Premium SP2 Intel Core 2 Duo Currently Have two sticks of Ram 1GB and 2GB of DDR2 PC2-5300 333MHz CL=5 Replacement options are: 1. Pull out the 1GB stick and put in 2GB DDR2-667MHz PC2-5300 CL=5 2. Pull out the 1GB Stick and Put in 2GB DDR2-800MHz PC2-6400 CL=6 3. Pull out the 1GB and 2GB Sticks and put in two DDR2-800MHz PC2-6400 CL=6 Option 1 and 2 cost about $30 and option 3 costs twice as much as option 1 and 2 about $60. Is it worth the extra money for option 3? Will option 1 or 2 create any compatability issue? More about : 5300 6400 rolli59 a c 1163 V Motherboard November 7, 2011 1:21:20 AM Option 1 will work in 99% of cases! Option 3 should work 100%! m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedReplacing DDR2 PC6400 with PC5300 Forum SolvedDifference in PC2-5300 (667 MHz) and PC2-6400 (800 MHz) Forum computer uses PC2-5300, would like to use PC2-4200, or PC2-6400, which would be safest? Forum Solved8GB 5300 or 4GB 6400?!?! Forum Solved2 gb pc2-5300 vs 1 gb pc2-6400 Forum Dell T300 memory upgrade : PCP-5300P VS PC2-6400E Forum Can I use both ddr2-6400 & 2 ddr2- 5300 in my dell? Forum Can PC6400 SODIMM replace my PC5300 SODIMM? Forum PC2-6400 VS PC2-5300 Different Slot Sizes? Forum What is the difference between "DDR PC2 - 5300" and "DDR PC2 - 6400" Forum PC2 6400 in a PC2 5300 slot? Forum Pc2 5300 vs pc2 6400 interchangable? Forum Ddr2 pc2 5300 vs 6400 Forum 6gb 6400...2gb 5300 Forum 5300 vs 6400 = different max ram limits? Forum Which memory is faster DDR2 PC2-6400 or 5300 Forum Can you replace ddr2 667 (pc5300) with ddr2 800 (pc6400) Forum DDR2 800 5300u replaceable with DDR2 800 6400? Forum Which set? (2 x 4GB pc5300 DDR2 FB-DIMM vs 2 x 4GB pc6400 DDR2) Forum Installing pc2 5300 ddr 667 with a pc2 6400 ddr800 can i do it Forum More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !