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 14th, 2009 at 6:31 pm
Just replaced 2 x 1GB of what I understood was the correct memory for my zv5000
However, now my laptop boots up ok, but just when done, it reboots again. Now in perpetual loop of loading all the way to the desktop, then rebooting. Any ideas? The couple of times the desktop loaded for more than a few seconds I checked the configuration and it showed 2GB. Why reboot then?
January 8th, 2009 at 4:56 am
I’d like to know were is the RTC battery on hp pavilion zv5000 because I want to rest the bios.
January 5th, 2009 at 10:50 am
Many Thanks!
Nice work!
Ron
January 5th, 2009 at 12:59 am
Richard,
Do you mean to use these memory cards in a different laptop? Sure you can.
January 4th, 2009 at 7:14 am
is it possible to use the memory cards of a Toshiba tera S2? I have two of 1gb left.
January 3rd, 2009 at 12:24 pm
Thanks for the instructions. I upgraded my HP zv5000 to 2GB ram. I started with a single Kinston 1GB chip from FRY’s. Blue screen at start-up. I returned the Kinston chip and bought two Corsair 1 GB chips. I installed both in 10 minutes. Up and running with no troubles. Thanks! Nate
December 30th, 2008 at 9:17 am
Thanks for the tutorial! Someone just gave me their old zv500, with some more memory this will be a great laptop.
December 25th, 2008 at 11:29 pm
Ben M,
You can use either slot.
December 25th, 2008 at 9:05 pm
I’m putting in a 1 Gig, and a 512, does it matter witch slot I put each one in?
December 21st, 2008 at 12:03 pm
Sten J,
Looks like both of them are 1GB PC2700 modules.
Both memory modules should work just fine.