HP Store Online - i want to increase ram on my laptop, how can i tell which cards for sale on ebay will work on my computer?

i want to increase ram on my laptop, how can i tell which cards for sale on ebay will work on my computer?

my computer now has 256mb of ram and i would like to increase it to 1gb or as close to it as i can go.while i was looking on ebay there are so many to choose from i couldnt tell which would work.i have a hp pavilion ze4540us.im not a real good computer person. my computer was purchased new in 2003 i dont use it for anything really important just ebay,email dont store records oof any kind on it.my current card is 256mb and i would like to put either another 256,512 or 2,512 on it how can i tell which will work on my computer? there has to be a bunch of cards that will interchange but i cant tell which is which or what is what. thanks for any help given

Public Comments

Go to www.crucial.com instead. Allow it to scan your computer. It will tell you what you have, what you can upgrade to and give you upgrade options.
don't waste your money on ebay you can get them anywhere http://crucial.com/
go to this web site find your system and it will tell you what memory it takes they also have a 1800 number on there to. i usually tell them i just need a quote. http://www.memoryx.com/ edit:>i agree with the others you should go to a vendor, its not that much and less headaches
Ran your system through a memory configurator (can Google and pick one of the sites that you like) and found that your system supports: PC2700 266 MHz DDR SDRAM SO DIMM 200-pin, Non-ECC Four banks Memory Configuration STD: 256 MB MAX: 1 GB Memory Expansion Slots: 2 Hope that helps. ** Edit ** Oh, given that memory isn't very expensive, unless you are getting a very good price on ebay, I'd really recommend going with a vendor that will provide some sort of warranty for the memory. Your looking at generic memory pricing starting around $14 for a 512 MB module and going up from there (for name brand memory, around $25 per 512 MB for that memory type would be pretty good).
Buying memory on ebay is risky. go to you computer manufacturers web site or http://www.crucial.com/ I buy all of my memory there. you can look up your computer by make and model number or use their scanner. I highly recommend http://www.crucial.com/