SNIP

Well, I hope you've seen this one. This one shows the circular object
in the lower left hand corner. Note the relationship, between the
dual DIMM area in the upper right. The bottom of the laptop has a square
plastic cover, that when removed, shows one or two DIMMs. The battery
is quite far from that opening. Flip the laptop over, and look in
the "barrel connector" corner of the laptop, for a cover or opening.

http://images.impactcomputers.us/IYB...1674-69010.jpg

The only question I have right now, is whether you can go in from the
bottom of the laptop or not. The bottom direction takes the shortest
path to get there. But, depending on which direction the screws are installed
on the thing (up through the bottom, or all screws fit in from the top),

Hi Paul,

It sure does look like that might be the CMOS battery on the bottom of the
mother board, near the AC adapter connector. Unfortunately, there is no
access from the bottom unless I use a dremel tool to cut an opening. I am
SHOCKED that HP would put a CMOS battery in a location that requires major
disassembly. I have replaced CMOS batteries on various laptops of mine over
the years, but never had to remove the mother board.

Do you know this image to be that of a HP Pavilion N3390?

Thanks again, John