To upgrade the ram on the Acer 5500z you need to buy some ram chips. Luckily the type of ram these machines use is really cheap. I picked up 2 - 1 gig chips of kingston ram for 40 bucks. Not bad! The type of ram this machine uses is:
DDR2 Non-ECC 533MHZ SODIMM chips. These are 200 pin chips. Here's a link to get the chips I used for a good price:
Here's a pic of the laptop with the ram chips beside it. Pretty huh? ***IMPORTANT*** Turn the computer off unplug the laptop and take the battery out as well to make sure you and your computer are safe.
So now that you got the ram lets get to work! Flip the machine over and hopefully you'll see what's in this picture below. I've circled the compartment in red and made some arrows pointing at the two screws you'll be removing. As you can see I'm not a computer technician but I'm also not a photoshop expert either. :)
Once the lid is open you'll see a ram chip or two. There's clips on either side that you can gently click away from the ram. After you've done that the ram will pop up a bit and you can slide it out.
There's two spots for ram chips. Just do the reverse of what you did to get them out. Pop the chip in, push it down and clip it in.
Once that's done put the cover back on and you're good to go.
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