can i put 2 different bytes of ram in my laptop? (128/256)?
540054
Yes you can.. I have 512 and 1024 in mine - as long as the memory is the same type and if they are different speeds - your PC will run both at the slowest of the two's speed as long as they have SPD (Serial Presence Detect) which autoconfigures your SODIMMs.
980519
You probably need more ram.
1172620
According to 4allmemory.com here is the info they list for your computer.\n\nSystem Information\nMaximum memory: 1 GB\nStandard memory: 512 MB (removable)\nSlots: 2 sockets\n\nSo yes, you can add 1 more 512MB SoDIMM to your laptop for 1GB Ram.
183574
Get 512 Mb, or more if you can afford it.   Ideally you want to the the memory on 1 stick, not 2, to conserve the slots on your motherboard for future upgrades.   Be sure to buy the correct type of RAM for your motherboard.
1044912
As you do not specify what you are going to use it for, I can only suggest you get as much RAM as you can, because there is no such thing as too much RAM.
628387
if the laptop was "off the shelf" (dell, ibm, compaq, hp, etc) you can use a wizard like the one at crucial.com to find out what your PC's memory type and maximum is. they have nearly all makes & models online, you just drill down thru a series of menus to find your particular one.\n\nif the laptop was custom-built you'll have to find out the manufacturer & model number of your board and do a little research, likely at the manufacturer's website.
536868
In some cases it matters but with older ram not really. As long as your motherboard supports the speeds it's okay. You computer will take the speed of the slower ram though. So if one ram speed is 133 and the other is 100 both sticks will run at 100
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.
941251
http://computer.howstuffworks.com/question175.htm\nhttp://computer.howstuffworks.com/ram.htm
663689
Hi, yes you can \n Go to Crucial.com They can tell you exactly what you need, and have instuctions, and pictures how to do it.\nI'm old and if I can do it anyone can (LOL)\nPJ
470550
Go to www.crucial.com. They have an easy way to figure out what you need.
520485
Run the Crucial Memory Advisor - http://www.crucial.com/promo/index.asp?prog=desktop2
139324
2GB is the most memory your machine can handle
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!!!
172470
try this site http://www.crucial.com/store/listmfgr.asp?cat=RAM
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.....
856886
Use Crucial's Memory Tool Advisor.\n\nhttp://www.crucial.com/index.asp