What does this mean: 2GB PC4200 DDR2 memory.?
112921
2 GB is the amount of RAM, which is alot.\n\nPC4200 I'm not sure about.\n\nDDR2 is the type or format of the memory card.
711901
333MHZ refers to the max speed at which ur RAM can function. PC2700 is the standard to which the DDR memory is compliant with. so by putting both together on the RAM stick, the manufacturer  makes sure that u have all the info u need.
448357
First, it's 128 MB memory, but 16 meg is being shared for video. \n\nUpgrades of your system memory depend exclusively on your motherboard, so check your board's owners guide or the board manufacturer's web site for the total amount you can upgrade to.
1112419
Do not confuse the term DDR or DDR2 with DUAL CHANNEL.\nThe 2 are unrelated.\nIt's not the RAM which is dual channel...dual channel is a mode the motherboard operates in to increase ram speed.\nA dual channel "kit" of ram simply ensures that the 2 sticks of ram in the kit have been tested to be of identical speed so as to guarantee proper operation on a dual channel mode board.\nGenerally, any 2 sticks of ram of the same size and speed should run in dual channel mode, but because ram speeds can differ slightly between say 2 different batches or "runs" of say PC3200, occasionally you may run into timing issues with modules that were not specifically matched to each other.
175263
It stands for dual data rate.  It is one of the slowest types of ram.
853916
You can't mix and match memory, if your motherboard is setup for pc2700 then thats what you have to use, if its capable of reading 3200 then you'll have to replace all the ram (if you have 2 sticks you'll have to replace both)\nThe increase in speed from 2700 to 3200 is only 73mhz so unless you are going to double the existing memory (1gb to 2gb) you aren't gonna notice much if any difference.
1060442
it means, u'r ram is short of memory. the best solution is to close a programe. the permanent solution is to upgrade u'r computer's ram
1117350
The latest are DDR2 memories equipped with a crucial chipset. They are really fast, but you'll need passive cooling to support them. For mor einformation check this link:
896771
go to www.crucial.com\nthere you will be able to find out your memory type\nmost probably a small software will be downloaded\nthe execution of that small software could result in telling you the type of RAM your system can accept\nok
984607
Speed and type of RAM used is dependent on the chipset used to make the mainboard. \n\nIn your case, the answer is "no way". DDR2 didn't exist back then except in a lab.
690703
Every motherboard has a part number, usually next to the serial number.  Copy it down, type it into Google, and it should come up with the specs of your MB including the type of memory required.
241546
shared means that some of your system ram is being used by your video card. how much ram is being shared is depending on your video card. (ie.32mb,64,mb and so on)
1024571
It works.  How do I know?  I run this setup in my system.\n\nMemory modules typically have no problems running at a slower rate.  The only issue maybe be that SPD (Serial Presence Detect) or the configuration that the RAM has stored internally may need to be overriden in BIOS.  If your motherboard is set to use SPD setting, it may try to run the RAM at PC3200 if your motherboard supports it.\n\nI manually set the setting on my computer to run it at PC2700 in BIOS and it was good to go. \n\nSide note: I could have ran it as PC3200 but I wanted my computer to run SYNCHRONOUSLY (i.e. FSB and Memory Clock running at the same rate.) instead of running the FSB at 333 and Memory at 400.
693032
You can buy 3 different popular memory chip sizes...\n\n1) ($34) 256 MB - DDR PC2700 • CL=2.5 • UNBUFFERED • Non-parity • DDR333 • 2.5V • 32Meg x 64 \n\n2) ($69) 512 MB -  DDR PC2700 • CL=2.5 • UNBUFFERED • NON-ECC • DDR333 • 2.5V • 64Meg x 64 \n\n3) ($140) 1 GB -  DDR PC2700 • CL=2.5 • UNBUFFERED • NON-ECC • DDR333 • 2.5V • 128Meg x 64 \n\n\n\nGood luck!
445965
The differences between these memory chips are speed, types, and compatibility.  In addition to the DDR (double data rate), there is also speed, usually follow by DDR3200 or DDR4200.  The higher the number, the higher the speed.  You should check what is the maximum the memory the laptop can take. Most laptops only allow memory upgrade up to 2 Gigs.
733285
www.crucial.com\nsome of the memory may be diverted over for video memory.  There may be a setting in the BIOS.
650413
you can put two 512mb ddr-266 dimms for a total of 1 gb pc2100 memory