can i combine ddr and sdram?
601750
2 different slots.... physically impossible unless the motherboard accepts both types...then, I dont think so...never tried...(I have an older motherboard that has both slot types...(rare)\ngo to Crucial for a free system scan that will tell you exactly what you need as far as speed and type.... this info is needed to shop for the appropriate RAM for your machine.....
110059
It'll take a lotta time to describe the whole process, so i've listed a couple of links here. Visit those links n read 'em.\nhttp://www.pcworld.com/howto/article/0,aid,18024,00.asp\nhttp://www.ehow.com/how_895_install-ram.html\nhttp://www.pcmech.com/show/memory/87/
461621
ddr and sd ram are both synchronous -- meaning that\nrather than responding as soon as an input signal\nchanges, they respond based on a clock cycle.  sd ram\ncan respond once per clock, whereas ddr (double data rate)\ncan transmit data on both the rising and falling edge of\nthe clock.\n\nddr2 is the same design as ddr (synchronous, both edges),\nbut it has been modified to run at a higher clock rate.\nFor large transfers, it can simply transmit more data\nin a fixed amount of time.\n\nYour computer was designed for some fixed types of memory.\nIf it was designed for a synchronous interface, then\nyou had better use synchronous memory.  Similarly, if\nit was only designed for only ddr memory, then it's not \nlikely to work with ddr2.\n\nAs for mixing *sizes* of memory, let your machine specs\nbe your guide :-)  I have worked on servers which required\nmemory to be installed in banks of 2 or 4 slots at a time\n(and each of those had to be identical).  On the other\nhand, I have a 256MB and a 512MB in an old laptop, and\nthat works fine.  My point is that where ever you buy \nyour memory should be able to look up what is supported\non your particular machine.
392346
If your motherboard can handle the ram. Some motherboards have a limit and sometimes the only way is to change the mb.
220075
DDR(Double Data Rate)ram. or sometimes called PC 2100/2700/3200\nBoards a couple years old used SDRAM or Rambus Ram
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
430914
Nope, it is not, it runs in parallel, for instance  333 DDR DC runs at 133 MHZ through two channels, for a total of 266 MHZ.  It is over clocked to output 333....\nKeep this in mind:\nWhat are some of the benefits of using paired memory? Since the memory sticks are packaged together after they have been tested together makes sure the modules that the end-user receives will be stable and perform well. Mixing different memory could lead to system instabilities or the memory modules might not run together due to compatibility issues. This takes the guesswork out of choosing memory for a dual channel motherboard. In addition, we feel that since memory speeds are not getting much faster, this give memory manufacturers another stepping-stone before moving to faster memory. Recently many other manufacturers have also started producing these paired memory kits.
697275
You can transfer the RAM memory IF the NEW system uses the SAME RAM chips.  If not, NO.\n\nI have upgraded systems and used certain motherboards BECAUSE they would let me use parts from the old system.\n\nThe only cure for spam is don't use an e-mail address, and/or don't connect to the internet!\n\nAs to viruses, get a good antivirus program.  I use AVAST!\nUse anti-spyware, etc.
944603
No you cannot. SD ram has 2 notch and while DDR has 1 notch.\nso you cannot put 1 notch ram(DDR) in 2 notch ram slot (SD)
396188
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.
65190
Do you mean DDR2 and DDR ?  GDDR2 are specifically for graphics cards.  DDR2 are 240 pins and DDR are 184 pins  so you will not be able to use these.\n\nBattery Wizard
904626
You usaully cannot just take memory out of another computer and put it in yours. If it is compatible it would work. I suggest finding out what  kind of memory your system takes first. Check this http://www.crucial.com\n\n\n\nEDIT: by kind i mean PC2700 or whatever, and then go from there. And ram chips are not universel. It has to be compatible with the motherboard.\n\nIt is highly unlikely that it will work.
401908
2 x 184-pin DDR DIMM sockets\n\nSupport up to maximum 2 GB memory (PC manufacturer's maximum memory may differ)\n\nSupports unbuffered PC2700/2100 non-ECC DDR SDRAM memory
100289
Memory Type\n DDR400/333 SDRAM\nMemory Description\n Three DDR 2.5V DIMM sockets support up to 3GB with 266 memory setting. PC3200/PC2700/PC2100/PC1600 non-ECC, unbuffered DDR SDRAM memory
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.
467183
various components.. like chips memory and such
838655
DDR=double data rate ... ddr2 is the latest memory ...its the fastest with the most bandwidth .. the motherboard must support it to use it.