laptop memory: can I use PC2700 DDR sdram SODIMM in a laptiop replacing PC2100?
970440
The memory probably is not going to work on your Compaq.  The best way to find out is to take a trip over to http://www.18004memory.com and see what your laptop requires, and see if the other is compatible.  They will tell you if the system can handle more, and what types are needed.  Not all RAM is created equal.  Some is non-parity, ECC, etc.  There are many different types, and compaq can be fussy.  Hope this helps.
965378
it can take DDR ram not DDR2 \nhttp://cgi.ebay.co.uk/NEW-SAMSUNG-1GB-PC3200-DDR-400Mhz-RAM-NT-512MB-PC-3200_W0QQitemZ230049114703QQihZ013QQcategoryZ74942QQrdZ1QQcmdZViewItem\n\nit can take Agp x8 video cards not pci-e\nhttp://cgi.ebay.co.uk/BRAND-NEW-GEFORCE-6800-XT-DDR-128MB-AGP-DVI-VGA-TV_W0QQitemZ200044697797QQihZ010QQcategoryZ27387QQssPageNameZWDVWQQrdZ1QQcmdZViewItem\n\ni can take pci sound cards \nhttp://cgi.ebay.co.uk/SOUND-BLASTER-AUDIGY-2-ZS-7-1-OEM-FREE-GAME_W0QQitemZ160052030840QQihZ006QQcategoryZ3701QQrdZ1QQcmdZViewItem\n\nas long as you fill those criteria you should be ok
950645
i would go on eBay and see other notebooks that are near the hardware profile that you have. that will give you a good basis.
956799
There are thoudsands ones. And over 90% mainboard support for DDR (DDR1 as you said), which may also support DDR2.  We have other 2 types are DRam and Ram Bus, but they are "pasted" way.\n\nJust read the information on the wrbsites of these companies, you will know what type of memory they support
898256
I do not believe that you gave us the complete model number.  The D series goes to 4GB and has 4 slots for DDR RAM. \n\nLook your exact model up at \nhttp://www.18004memory.com/\n\nGood luck and Happy Computing!
242324
It depends. There are three factors to consider:\n\n1) What kind of RAM is in each laptop. Most newer laptops take a standard SODIMM.\n2) The speed of the RAM. If the processor speeds are very different or the bus speeds are different, the old RAM may not be able to keep up. Best case, the motherboard will figure that out and just slow down. Worst case, the machine won't boot or will crash until you remove the memory.\n3) Does the new laptop have free slots (or can you remove a smaller module)?\n\nOne trick is to pretend you are buying extra memory for each and see if the memory selector guides on the Web show you the same memory. This isn't foolproof. So looking at http://www.vikingcomponents.com/configurator/default.asp and telling it ze4400 we find that this uses 266Mhz memory with OEM #s of F4695A (256M) or F4696A, DC390A (512M). It tells us this is DDR266/PC2100 SO DIMM.\n\nHowever, I didn't find an Acer Aspire 3610. So dance over to Acer's web site. Here it is:\nhttp://us.acer.com/acereuro/page9.do?dau34.oid=11650&UserCtxParam=0&GroupCtxParam=0&dctx1=25&CountryISOCtxParam=US&LanguageISOCtxParam=en&crc=2321137947\n\nAccording to that page:\n512MB (512MB installed in one of two memory slots) DDR2 400 SDRAM \n\nSo that means it is DDR2 400 -- The old laptop is DDR 266. So probably won't work. If it does work it will slow the new laptop significantly.\n\nSorry!
866092
Not unless you're gonna be overclocking your computer.\nBut if you're not, get memory with the same specs (at least): DDR2 PC2-3200. Before you do, check to see if you can add memory. If you can add memory, buy memory of the same brand and model (other brands/models are likely to have different timings, causing all sorts of problems).
201822
as an example if u have p3 the internal speed of the ram is 133 Mhz , and for P4 is 400 Mhz or 800 , that means all parts shall be compatible to each other in order to get best performance , also memory will go in double capacity , 128, 256,512,1028 , u cant add 128+512=640 its not really wrong but how money can the add memory worthy
1180882
Yes you can, that is if your mainboard is a newer kind.  I have a 256 mb DDR before and i recently purchased 512mb DDR additional ram for my pc to work well.  \n\nJust install the new ram in the memory slot in your mainboard, make sure that you put it properly to prevent boot-up errors.  When you restart your computer, you will see if it is recognized since there will be more ram in the boot-up details.\n\nIn my case, i even have a DDR 333 256mb ram and the latest one i purchased is 512mb DDR 400 ram.. So far so good it has been working perfectly and i have not encountered problems (like my pc rebooting constantly and such). But i know that my 512mb ram is not performing as DDR400 like it should coz it matches the clock speed 333 of my 256 RAM. But still i got 768mb of memory which is far more better than my 256mb before.
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!
1048046
If you still have the owner's manual, look it up there.  If not, go to the website of the manufacturer and find your model and look up the specs there.\n\nThe mainboard will require ram that has a specific bus speed [e.g., DDR 333 aka PC 2700], a specific type [ single data rate or double data rate], and will support a certain amount in mb's [1 gig, 2 gigs].\n\nYou can usually find what mainboard you have by going to Start, All Prog, Accessories, System Tools, System Information.  With System Information highlighted on the left pane, on the right under System Manufacturuer and System Model your mainboard will be listed.
842819
pc700 memory modules are not supported by this mobo (850 chip set) and may run at pc600 speed.\nto run dual channel mode, both ram modules have to be of the same size and speed. therefore a 128mb and a 512mb (btw with different speeds) will not work properly.\ntry to run both modules in bank 0 or remove the 128mb module and put the 512mb in bank 0.\n\nhere is the description from Intel\nhttp://www.intel.com/support/motherboards/desktop/sb/cs-009040.htm
1114677
Mostly, u have 2 check the type of ram supported by both computers. Most recent compiters support DDRII RAM Technology which supports DDR one RAMs. But if the old memory is SDRAM, it might not be suppoted by the newer laptop. A DDR one RAM will mostly be supported by new ACERs and DELLs.\n\nNext time, if u need help through such an open community, where no one knows any thing bout ur laptop, better specify the laptop model number, or mention the main features such as the RAM type and size.
862619
http://www.crucial.com/store/listmfgr.asp?cat=RAM
746241
i wish it could,but sorry,memory(ram) is bought in what we call modules\n      modules are then put into memory banks(slots) and each computer has different types of memory and amounts that can be installed\n       memory comes in 4 main types,the 1st being sd-ram ,this is the 1st generation memory and is found in older machines such as pentium 2,s and pentium 3,s,sd-ram comes in sizes from 64mb and then in sizes 128mb,256mb,512mb\n       the second type of memory is ddr(double data rate)ram,or more commonly known as ddr-sdram and this comes in different speed types such as pc2100,pc2700,pc3200 and comes in sizes 128mb,256mb,512mb,1gb\n       the next type is ddr2,this is similar to ddr but operates at higher speeds speeds start at 400mhz(ddr2pc4000)these modules now have speeds of up to 1ghz,and come in sizes 128mb,256mb,512mb,1gb,2gb\n       the final type is laptop memory which is known as so-dimm,and this comes in sizes 64mb,128mb,256mb,512mb,1gb\n       you can go to http://www.crucial.com/,and there you can run a scan of your system,this will give you a full report of your system memory and this can be printed out for you to take to your local computer shop,this way at least you know you will be getting the right type of memory\n        any problems let me know\n                    good luck
734121
the problem is not if it's ecc or not (mostly it isn't), the problem is that you cannot replace pc100 sdram memory by pc133 because it's incompatible in most cases.\n\nbtw, the characteristics of ecc memory modules is that it has a multiple of 9 chips on it (9, 18 or 36), other than non ecc that has a multiple of 8 chips on it (8, 16 or 32, sometimes only 4).
856886
Use Crucial's Memory Tool Advisor.\n\nhttp://www.crucial.com/index.asp