Here are excellent instructions for upgrading memory on HP Pavilion zv5000 series laptops in seven relatively easy steps. I found links to the disassembly pictures while reading comments on Ask Laptop Freak site and decided to compile them into a guide. Upgrading memory on this laptop could be tricky because one of the memory expansion slots is located under the keyboard. According to HP specifications for zv5000 you can install 2 memory modules up to 1GB each. You should use PC2700 333MHz memory modules.
STEP 1.
First of all, you can add one memory module into the expansion slot on the bottom of the laptop.
Enlarge image 1.
STEP 2.
Remove seven screws pointed with red arrows.
STEP 3.
Carefully lift up the keyboard cover. You’ll have play with the cover in order to release plastic latches.

Enlarge image 3.
STEP 4.
Remove four screws securing the keyboard.
STEP 5.
Carefully lift up the keyboard. You don’t have to disconnect the keyboard from the motherboard in order to access the memory expansion slot. Just turn the keyboard over and place it upside down on the palm rest.

Enlarge image 5.
STEP 6.
Here’s the memory slot you are looking for.

Enlarge image 6.
STEP 7.
Spread latches on both sides of the memory module and remove the old 256MB module and install a new one.
HP Pavilion zv5000 laptops will not take more then 2GB (1GB module in each slot).

Enlarge image 7.
UPDATE: HP Pavilion zv5000 LCD removal and backlight replacement instructions
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January 1st, 2013 at 9:45 am
Thanks a lot! This is the last chance to revive my 8 year old aging laptop. Good step by step illustration. I thought this laptop uses only one memory module. So, it has a hidden module too.
December 17th, 2012 at 12:51 pm
Followed your instructions and they worked like a charm. Now if only someone could provide similar guidance for upgrading the AMD Athlon 64 3000+ CPU to the AMD Athlon 64 3200 I would be able to max out this PC. Thanks for posting these instructions!
December 15th, 2012 at 8:53 am
@ John Jones,
Isn’t it the internal wireless card? It’s not connected directly to the screen.
December 14th, 2012 at 5:13 pm
On image 7, where you have the memory card in your hand, the thing directly underneath it, looking like its somewhat integrally connected to the screen. What is that? I’m trying to fix one of my friends computer, and for some reason that chip is missing. please email me back, I can send you pictures. But so far all the pictures i’ve seen on your photos, you have a chip, something occupying that space. mine does not. Is that the Video card, because the origin of which i’m trying to fix, the screen is just black.
November 10th, 2012 at 9:12 pm
That was so simple. Always knew there was one inside but not how to access it. Thanks for the simple instructions. I put in 2 – 512 chips for a total of 1g and the thing is lightning fast. Well, that’s after the slow loading of XP pro on the zv5000 but after that I am satisfied. Anyway, thanks again.
August 12th, 2012 at 11:13 pm
simple and clear guide.
help me a lot, would not have figure out where was this 2nd emplacement not try the operation wihout it.
Many thanks
May 7th, 2012 at 3:25 pm
I just answered my own question. The CMOS battery in the HP Pavilion zv5000 is identical to the CMOS battery in a Toshiba Satellite. Just search for replacement CMOS battery and hone those soldering skills. It just bothers me to be soldering in a live battery to a circuit board…
d
May 7th, 2012 at 3:17 pm
Upgrading the memory seems pretty simple. How about a how-to about replacing the cmos battery on a zv5000?
Thanks, Dennis.
December 7th, 2011 at 2:02 pm
You are a hero …. thanks, Gerry
P.S. Without a magnetized screwdriver it would have been all but impossible.
August 14th, 2011 at 8:31 am
Thanks Man!