Using the following instructions you will be able to upgrade the hard drive and the memory module in a Sony Vaio Z505 laptop.

The first guide explains how to access the memory slot witch is located under the keyboard.

The stock Vaio came with 128MB memory and can take up to 256MB by adding a 128MB PC100 SODIMM. There have been tales of people both succeeding and failing at adding more memory with various operating systems, but Sony only promises up to 256MB for this model.

The second guide explains how to access and upgrade the hard drive witch is located under the laptop top cover.

The stock Vaio came with an IBM Travelstar 12GB drive. Theoretically, you can replace it with any other 2.5 inch notebook drive

The third guide also explains how to take apart the laptop and remove or upgrade the hard drive, but this guide has more pictures and detailed instructions.

The pictures on this page should apply to most Sony VAIO Z505 laptop / notebook computers, as well as to the Z600 laptops since they’re the same (just renumbered for the European market).