can I mix a 256mb ram stick with a 512mb?
137772
Yes, you can if its of the same type,( Don't mix a DDR with a SDRAM) but there is a possibility of conflict later on .If u want to do a RAM test go here http://www.crucial.com
907269
Well the second guy is half right, you can of course install them in different sizes.  However to call the performance gain "amazing" is a bit of a stretch.  Plus, you would be forfeiting dual channel mode if you install in different sizes, which is a bad thing.  My suggestion is to save up until you can afford the full upgrade to 2GB.
939946
There are 1000 MB in 1 GB   So 512MB would be the same as about .5GB.   The 2GB is much bigger. \n\nGood luck and Happy Computing!
1177094
I think you answered your question without even realizing it.  You can install pc2700 ddr memory.  It is also known as DDR333.  The link is to Newegg, 512mb starts at $45 shipped.  Much cheaper than  Best Buy, Circuit City etc...\n\nSome people will tell you to only buy the expensive brands, but I have never noticed a problem with the lesser known brands.  Look for lots of reviews, it is usually a good indication of a well liked product.\n\nI would suggest checking to see if you computer will support 1gb (probably) and purchase that.  512mb is fine for WinXP but 1gb makes it hum right along.\n\nHope this helps.\n\nJust a note, you cannot use DDR2.  It is not physically the same, the slots the memory installs in are different configurations.
980519
You probably need more ram.
971770
Buy larger capacity sticks of ram like 512MB sticks or 1GB sticks.
69933
u can upgrade the mother bord and make it better and/or just buy 1 or 2  memory sticks(ram) and stick them in ur comp.
230928
Check your computer specs as to maximum memory supported to determine how big a memory stick you can use. DDR memory works best in like pairs ie 2 x 128, 2 x 256 and so on. While you can mix and match or only use one stick you do so at the loss of peak performance.
323117
not necssary , but u have to add multiple capacities , means , another 1 GB , or 512*3 , u cant add 256 to 1 GB
862619
http://www.crucial.com/store/listmfgr.asp?cat=RAM
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)
130060
U can put the ram in as long as it has room for it. Normally computers have 2 slots. Just make sure that u have and empty slot and the new RAM is on the same frequency. Not having the same frequency will lead to a lot of system crashes. \nThere should be no trouble in putting the new one in, u will have a better performance no doubt.
999927
Agreed..... check out the crucial web site and find out exactly what kind of RAM your computer will support.  But even if it says you can use the two sticks you already have, you could have some other compatibility issues.\n\nThe 512MB may be 333MHz instead of 266Mhz like the 256 stick.  Even if you could run them together, the different frequencies could be a problem.  Your computer might run at the slower frequency (if, in fact, the 512 has a different frequency, is  it also backwards compatibile.  Meaning, will it actually work at a slower frequency.)\n\nThe second issue is whether or not your computer will accept two different RAMs or do they have to be the same (in pairs.)  If the computer will accept different RAMs, make sure to check if they need to be installed in any particular order.  Some computers require that the largest stick be placed in slot # 1, the next largest in slot # 2, etc.\n\nAnd finally,find out if your new computer's warranty will remain in effect if you choose to deviate from the manufacturer's specs.  Nothing worse than spending big bucks on a computer, violating specs, needing repairs, and spending more on the repairs than you did on the whole computer because you trashed your warranty trying to save a few bucks.
449085
yes, your computer will have a Max Ram quota. Most older computers limit the ram to about 256MB while newer computers can handle 500-2GB
70600
Yes of course!  You can install different RAM modules for as long as the have the same model (or speed or timing) to be safe always use the same brand - for example you can use varying capacities of PC2700 DDR and have them installed on your machine.  Your system will simply add them up together...
991945
It is better if you just use the 512 chip. Or the two 256 chips. If you use all the three the 512 will be used as if it is only a 256 chip.
87691
DDR RAMs will not fit in a SDRAM slot. For utmost details:\nhttp://computer.howstuffworks.com/ram.htm