Developer79

In the picture, I have once again highlighted where I made the most important change to the MXM board! In case that wasn't clear enough. The DisplayPort lanes must be routed accurately!

Thank you! As I said, I'm currently having the latest MXM board assembled and will then test it. I hope the DisplayPort channels work with all resolutions and frequencies! Then you can operate the internal display of the P870xx with all resolutions. But an external display is also still implemented. Unfortunately, the other DisplayPort channels could no longer be integrated for geometric reasons, and the maximum number of layers allowed for a PCB with a thickness of 1.2 mm is only 12 layers. No factory in the world can produce more layers. I had the idea for the whole project a few years ago. I thought the updateability of the P870xx and its wonderful features were cool! In my opinion, Clevo has created one of the best laptops with this model series!

This was the problem before. Now, i think it works. I hope this for test.

Thanks again for your words! 🙂 Yes, you're right, the vapor chamber is very good but reaches its limits when maximum heat output is achieved. Still, we can think about that later. But I would like to point out that the vapor chamber for the P870xx was designed for two GTX1080s. That's just under 400W of electrical power. Anyway, water cooling is quicker to implement for me when I have the spare cash! I've also tested a few desktop cards and the power consumption varied between 250 and 400W! I would still try to reduce the power consumption as much as possible. It's all possible! You also have to remember that the power supply in the hard drive bay gets correspondingly warm at the coils and MOSFETs when running at high power. That also needs to be cooled a little. My power board is very conservatively designed and is geared towards minimum heat conduction! So far, I've only had one failure of my power board with an RTX4090! I think everyone can understand that this is too much for the P870xx! With an RTX5070Ti or RTX5080 with reduced performance, the P870xx is faster than any current laptop with maximum gaming equipment up to UHD! As I said, I want to test my latest version of the MXM board after assembly to see if all resolutions and frequencies work. That's the most important thing for internal operation in the P870xx! At first, I underestimated the DisplayPort lanes and the routing through the MXM board in particular! In the latest version, I paid particular attention to laying the lanes according to all the rules of the art! And it wasn't just the internal display that was important, support for the external display was also important. I would have liked to have implemented support for all DisplayPort and HDMI channels, but unfortunately, even with a 12-layer board, it wasn't possible! After that, I'll pick out an RTX 50xx and do the cooling. Functionally, my MXM board and power board are OK and everything is working as desired! When my financial situation improves, I can do more again.

Since several cards are compatible and I have only tested one prototype, I used standard cooling. First, I would need to find a good card or make a list. Then I can implement water cooling. That shouldn't be too difficult, because in the end it's just small copper heat sinks for GPU dies and MOSFETs. First, the new MXM adapter boards are ready and need to be tested after assembly. For me, the problem was resolution and frequency. Hopefully, that will be fixed soon. If everything works, my MXM adapter will be fully compatible with the P870xx!!! I also modified the power board a bit to achieve good performance in the P870xx. Many Nvidia, AMD, and Intel cards will then work! Besides, I am a ONE-MAN development team, and you need money for that too! I don't have much of that at the moment. That's the status!

It always has to be done specifically for the respective card. That's no problem, there is a desktop card that you can choose and that fits well. The RTX5070 Ti and RTX 5080 are quite suitable. The RTX5070Ti is the best choice and offers a good compromise between gaming and power consumption!

It depends on the cooling! Water cooling is quicker to implement. A vapor chamber must be well made.

This is my desktop project showing how the desktop graphics card is installed in the P870xx! Here's a photo showing the MXM adapter board and power board in the 2.5 hard drive bay.

hi, here is my holder for P870DMG in real:

here is my holder for P870DMG in real:-)

here is my Holder in real:-)

The vapor chamber for the P870xx series is the best air cooling solution!:-)

Hello All, With my new holder for the P870DMG, it is also possible to install GTX10xx - RTX30xx MXM from Clevo and other Cards RTX40xx/RTX50xx MXM not from Clevon in standard Size!. Below is a picture of it:

What kind of P870xx do you have? As I said, if you want to install GTX10xx - RTX30xx in the P870DMG, I recommend using my adapter or building your own! And other MXM Cards RTX40xx/RTX50xx MXM in standard size!!! Here my last version from the adpater in stanless steel!:

Hello, Unfortunately, there aren't many AMD MXM cards available anymore. So far, I've only been able to install AMD desktop cards in the P870xx!