I have HP Notebook but I have problem with my video card.
The video signal is not with enough quality that I need.
For that I want to upgrade the video card.
I know that I ought to disassemble my notebook.
How to install my new video card ?
Upgrade the video card on my HP laptop
If unfortunately the video card of your HP notebook is built into the motherboard and you are experiencing some problems with the video or want more memory, the video card which is integrated into the motherboard cannot be physically replaced.
However, Hewlett Packard (HP) gives alternative solutions like updating your BIOS and Video Chipset drivers. Install the new driver then restart your notebook.
For details follow the link of official HP website: HP Website – Resolving Video Graphic Issues
Upgrade the video card on my HP laptop
Nowadays, video cards are imbedded or built-in to the laptop. However it seems you wanted something more to support your requirement.
The most you can do for your laptop is to look for a video card update and this is available with HP support. Check HP support site for your HP model of any BIOS update.
If the updates will not be satisfactory to you, it is then time to search for a laptop or desktop that would best suite your needs.