I bought my computer back in 2003 from dell and it is a dimension 8250. I want to buy some more ram at least 512mb, because my current ram is 256mb PC1066 RDRAM, but the problem is i dont no the diference between those new types of rams like ddr2 or ddr3 sdram and all those. could any one please tell me what type would work with my computer?
201097
RDRAM is completely different from ddr2, ddr3, etc.  You'll need to find pc1066 RDRAM.  As no current motherboards support these modules, they are not as widely available and are somewhat more expensive.  You might want to consider a full upgrade.
238439
DDR2 is double the bus speed, so if you laptop supports it, and you can afford the extra price, use that.  Your system will recognize it w/o problem (again, if it supports it).  Some systems only support DDR, so you need to be sure - go to http://welcome.hp.com/country/us/en/support.html and enter your model number - then look at what memory upgrade is supported.  If DDR2 is not specified, you have to get DDR.
367413
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).
174682
easy...\n\ngo to kingston.com and use their ram wizard...  No guess work.\n\nAnoosh's suggestion just uses the system info in the registry.  It can be inaccurate.
191045
LOL DDR and SDRAM are two totally different things.  DDR is Dual or Double Data Rate.  SDRAM is Synchronous Dynamic RAM.  You can have DDR SDRAM.  You need to find out if your computer supports DDR or SDR (single data rate), then see what the max allowable size for each memory bank is on your PC.  If it supports up to 512MB and DDR, you should be able to use it.  Also, the speed comes into factor.  What speed of RAM does your motherboard support PC 2100, 2700, 3200, etc?\n\nDDR SDRAM\nSDR SDRAM  \n\nconfusing because of the SDR acronym in both Single Data Rate and Synchronous Dynamic Random...  this is why you are getting icorrect answers.
61604
< RAM\n(Random Access Memory) A group of memory chips, typically of the dynamic RAM (DRAM) type, which function as the computer's primary workspace. When personal computers first came on the market in the late 1970s, 64KB (64 kilobytes) of RAM was the upper limit. Today, 64MB (64 megabytes) of SDRAM is entry level for a desktop computer, a thousand times as much (see SDRAM).\n\nThe "random" in RAM means that the contents of each byte of storage in the chip can be directly accessed without regard to the bytes before or after it. This is also true of other types of memory chips, including ROMs and PROMs. However, unlike ROMs and PROMs, RAM chips require power to maintain their content, which is why you must save your data onto disk before you turn the computer off. To learn about the types of RAM chips and how to upgrade your memory, see memory module. To learn how memory is used to process data, see computer or memory. See also dynamic RAM and static RAM.
503046
From my own personal experience building and working with computers, I can offer my opinion.\n\nSDRAM sees no more use in new consumer products.  Due to the massive use of DDR 1 and 2, the cost of DDR chips over SDR chips has decreased and made DDR more economical.  SDRAM will fade away completely out of the mainstream market, as soon DDR will when it gets replaced by DDR2.\n\nOf course, this doesn't change the fact that SDRAM still works, and works well.  It's a question of economics.\n\nIf you're thinking you should upgrade your solution, I would say the answer is yes. It doesn't have to be today, or even next month.  But it 2008 rolls around and you're still using the stuff, expect it to get expensive.
197913
if you have a new computer, its going to be in increments of 128 megabytes.  You probably want 2 512 mb "sticks" of "DDR 3200" if you have a fairly modern computer.  Look up your motherboard and see what ram it can use...don't just buy some random stuff.
252124
You need to leave more information.  What computer do you have, what motherboard....\n\nHow many slots in total do you have?\n\nIf you have 4 slots, then the chances are you need to insert 2 RAM modules at the same time.  Not a definite, as will need more info on your computer,  but thats probably likely. You could buy 2 sticks on 1GB, and insert them into the currently filled slots, and put the 2 512Mb in the other slots (if you have 4 slots)  That way you will have 3Gb RAM, should run quite will with that!!!
1984
I would recommend going to http://www.crucial.com/index.asp and using their memory finder if you ever have another question like this.  They also have an auto detect memory feature (see sources) if you don't know the model number or it's a custom built computer.  Once you know, then buy it cheaper somewhere else like newegg.  Give a man a fish and all that...
515623
Since you have a dell the chances are that your MB support a Pentium class processor- this would hugely upgrade your performance! See if you can find what "slot" type your processor is- infact being celeron it might be 478... Then your next step would be more memory... If you have any open slots then another 512 stick would be great. Newegg.com usually has great prices! These two components would be a great asset!
474891
It depends on how many slots you have for memory.  If you have 2 sticks of 128 Mb to make 256 Mb currently in there and have no more slots, then you cannot combine.  If you have 1 stick of 256 Mb and 1 512 Mb stick and 2 slots, then you can combine them, just plug in the new memory.  If you have 2 sticks of 256 Mb to make the 512 Mb of RAM, then that's all you can use.  What do you have?
398661
the DIMMS are silicone chips attached to a printed circuit board.\nSoDIMs are the same, just a different shape (generally for laptop use).\nThe only way to tweak your memory speed is by altering the motherboard controls, NOT the RAM chips themselves.\nDIMMS do not have a writeable EPROM.\nYou can buy faster RAM cheaper than you can reengineer existing chips.
24564
go to the dell service website and put in that service tag then search their website for specifications for your exact computer.  they should have the ddr ram type listed in specs
441511
Here is a list of pc3200 ddr ram from newegg.com\n\nhttp://www.newegg.com/Product/ProductList.asp?Submit=ENE&N=2010170147+1052407862&Subcategory=147&description=&Ntk=&srchInDesc=\n\nCheapest price for 256mb of the RAM you need is like $26.00...\n\nGet it from Newegg... they are cheap and fast... \n\nHope this helps!
200386
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.
376470
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