Ok This was in my compaq manual.
You can increase the amount of RAM (random access memory)
in the notebook with an optional memory module approved
by Compaq.
The notebook contains 2 memory slots, one of which is
accessible for an optional 128-MB, 256-MB, 512-MB, or
1024-MB memory module upgrade.
Depending on the notebook model, the notebook might ship with
a vacant memory slot. On other models the memory slot contains
a preinstalled memory module that can be replaced at any time.
does this mean that my 512mb(1x) that came in it cannot be removed?
You can increase the amount of RAM (random access memory)
in the notebook with an optional memory module approved
by Compaq.
The notebook contains 2 memory slots, one of which is
accessible for an optional 128-MB, 256-MB, 512-MB, or
1024-MB memory module upgrade.
Depending on the notebook model, the notebook might ship with
a vacant memory slot. On other models the memory slot contains
a preinstalled memory module that can be replaced at any time.
does this mean that my 512mb(1x) that came in it cannot be removed?