The VM8000 memory is under the keyboard. It takes standard laptop SDRAM, 100 or 133MHz will be happy in it. 66MHZ will also work, but will really hold its speed back.
To take the keyboard out/off, do this....
Disconnect charger and take battery out to avoid accidents with sparks ;)
Get a small flat blade screwdriver (or something like that - a kitchen knife is ok too).
There are 3 tiny black clips at the bottom of the keypad section, one is under the FN key, one is under the WINDOWS logo key (to the right of the SPACE bar), and the 3rd is directly under the DOWN & RIGHT cursor buttons.
These clips are about 3mm wide, and push slightly towards the front of the laptop. Start at one side, and work across - as each is pushed back, you may see the keyboard 'spring up' a tiny amount.
Once all 3 are done, slide the screwdriver under the keyboard and raise it CAREFULLY - it's attached by a fragile ribbon cable, bend or tug on that, and you can easily lose the keyboard, even if you cannot actually see the damage done to it :( so be careful. And also watch you don't accidentally allow the keyboard to swing on the cable and strike/scratch your screen :(
Once that keyboard is away, it's very obvious how the memory fits in, and you can use either slot if only using a single memory strip.
If the laptop won't boot after fitting, try the other slot. If it still won't boot, the laptop is most likely not compatible with that strip(s) of memory, so try another make or speed.
To replace the keyboard, slide it in (rear first), and then press gently at the 3 catch points mentioned earlier. Each will probably click as it fits in place.
I hope that helps on that part.
Unfortnately, i don't yet know the location of the CMOS battery, so i cannot give details on how to change that yet. It's the first time i've worked on this specific model, but i will drop by again if i find a link to the engineers guide PDF for it.
Good Luck with it :) They make a great laptop, well worth upgrades to keep them happy.
:)
Philbert
October 2007