Good Day. Thanks for posting your query in the HP community. I read the post regarding graphic card upgrades and wireless card upgrades for the computer. I will be a pleasure to assist you here. I am responding to a related post here.
Commendable diagnosis and splendid description of the issue before posting. Hats off to you on that score. 🙂
To assist you accurately, I would require more information regarding this.
Did you check locally with a technician if any graphic cards are supported?
Factors that need to be kept in mind during the upgrade:
The power supply should support the graphics card.
The power connector should match the graphic card’s power port.
The bios involved.
The operating system of the computer
The expansion slot of the card.
The form factor of the wireless card and the graphics card
Your computer checks all the right boxes for these except maybe the power supply if you need a powerful graphics card and the form factor.
Please note that HP does not recommend upgrading either the operating system or the computer’s hardware as the components that were initially installed with the unit are certified by HP for optimal performance. However, as you are very technically inclined, I would still request you to consult a local technician like Best Buy or Staples before proceeding to upgrade the graphics card on the unit.
So please contact a local Best Buy or staples technician and perform the upgrade so that there are no compatibility issues with the Graphics card for your computer and everything works smoothly.
Regarding the wireless card upgrade:
"To add Bluetooth support and it seems that Centrino N-6230 or N-6235" I would still say it should be upgradeable because of the mini express slot on the motherboard. But please contact a local technician before doing it to avoid compatibility issues.
Hope this helps. Let me know how this goes. I genuinely hope the issue gets resolved without hassles and the unit works great.
To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.