Update on 4GB RAM upgrade

In a previous post I described how contrary to Sony's spec I managed to upgrade to 4GB of RAM on a Sony Vaio AR 21s.

A small but annoying issue. Vista still thinks that there is 2GB of RAM every time to put it to "sleep"/"Hibernation". This gets tricky when it tries to put 3.1GB of memory available to windows into a 2GB disk hiberfile.sys file. The hard drive does not like this and I ended up having a system that wouldn't boot and had to be repaired using the Vista recovery tool from the Vista DVD.

Running the "Disk Cleanup wizard" on this laptop and choosing to delete the hibernation file forces Vista to recreate it after a reboot or two.

I know this blog is starting to become the "Craig's problems with his laptop blog" but I want to try and help anyone else going though similar difficulties. That is one of the main reasons I post here, to try and solve tricky problems that defy rational explanation in software development and IT.

I promise to move onto other topics soon…