how many types does RAM have?
103251
2 types: static & dynamic.\n\nDynamic, like memsticks you see, come in SDRAM & RDRAM are cheap and hi-density, but require refresh, which makes them slow.\n\nStatic, more expensive per byte, but blisteringly fast, require no refresh and are restricted to use in cache & CPU-related activity.
412633
Go to Crucial.com this site specializes in RAM for most PCs.  They'll tell you what they suggest is best for your application.  I've used them twice and highly recommend them.
625613
It has 3 memory slots, and is a PC100. \nIt will accept 3-256Mb Low Density RAM modules. It will accept PC100, and PC133 low density SDram 168pin. The modules will have 8 chips per side, 16chips total. The high density chips will only have 8 chips on one side of the module.\nOn that old of a computer I would not purchase new. You can purchase 256Mb for $40±, on eBay.
507901
The RAM modules' speed must at least match the memory controller on the motherboard. You can always use faster RAM modules than required, but not slower.
939585
http://www.crucial.com  That site will show tell you the exact amount and type memory your system uses.\n www.newegg.com is a good place to buy from
778582
Here you go\nhttp://en.wikipedia.org/wiki/DDR2_SDRAM\n\n///
119678
Static RAM and Dynamic RAM
540696
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!!!
779310
they are 2 different Ram formats ... SD Ram is older and is identified by 2 notches along the contact edge where DDR Ram only has 1 notch approx in the middle ... You CAN NOT place SD Ram into a DDR Ram DIMM or vice-versa
1162627
Hello hdluvakiddie,\n\nYou can buy memory at most computer or electronic store. But before you do that, you need to know what type. Lots of computer accessories/component fall under this category: hard drives, those USB memory sticks, floppy disks, DDR (there are two types and many configurations), SRAM, SDRAM, sEEPROMs, etc...\n\nAll the types I listed are indeed memory and the accesses(reading and writing) to them are random. Hence, they are called random access memory. \n\nWithout knowing what you are looking into doing with the computer, I can not really advise you on which type you need; however, my guess is that you are searching to increase your main memory which is the memory that is used by software when it executes. Without knowing what type of computer you have, I can not tell you which type but if it is a relatively new one and is a personal comptuer (as oppose to servers, etc...), then you are probably looking for DDR I or DDR II. The amount and configuration is determined by you and the computer manual. Thus, consult the computer manual for possible configurations and memory types and the maximum allowed memory capacity.
677474
The "PC" number you're talking about is the speed of the RAM.  The only way to tell what speed your RAM is, is to shut down and unplug the power from your computer, open the case, remove a stick of RAM, and look at the sticker on the RAM.  Looking at your motherboard manual will only tell you what RAM speed your motherboard can handle, not what kind is currently installed.  By todays standards, PC2100 is kinda obsolete.  Try upgrading to PC3200 or even PC4200, granted your motherboard can handle it.
909878
dont use ur old stuff unless its ddr2 ... if its older than 6 months it isnt ... dont mix the types or you'll slow everything down , just add another 512 if you have a SINGLE stick, and check out the site the guy above mentioned to get the same speed memory ... if you have two sticks of mem now they are 256 each and most likely in dual channel configuration ... in that case i would get the same speed memory but buy (2) 512s' or (2)1gig sticks ... if you break up a pair of sticks in dual channel or add a third you will slow things down also ...
980519
You probably need more ram.
18943
This depends on the Type of RAM.\n\n\nDesktops\n \nEDO and FPM (very old) run at 25/33 Mhz\nSDRAM runs with the system bus at 66/100/133 Mhz\nI don't know about Rambus, but I think it's some 266,333, 400, 500, 667, and 800 Mhz.\nDDR has 266, 333, 400Mhz\nDDR2 has 400, 533, 667, and 800Mhz.\n\n\nNotebooks/laptops\nSODIMM has 100,133,266,and 333Mhz
715137
go to http://www.crucial.com and download their tool for seeing what kind of RAM you have and what is their recommendation
27324
It all dependes on the type of ram you're looking for,\ngo to this link http://www.crucial.com/ , use the memory advisor tool, it will tell you exactly what type of memory you would need for your system. Once you have that information just go online (www.newegg.com my favorite) and order the ram you need.
529686
It would seem to me that crucial.com ofers refurbished products as well not to mention, they offer a tool to identify what type of ram you need. kahlon.com seems to be a retail site offering a broader range of PC parts. If I had to choose bettween the two of the for the sole purpose of aquiring ram it would be crucial.com .....There are many other sites as well. You can use a 3rd party system information software such as everest home to obtain the ram info. you need: http://www.majorgeeks.com/EVEREST_Free_Edition_d4181.html and then find you a deal at ebay: http://computers.ebay.com/  Good Luck!