Developer79

Hi, I took apart the RTX5070Ti to measure the DisplayPort cables. On the PCB, you can clearly see how the DisplayPort channels are routed, and the manufacturers pay close attention to the routing of the channels! The chip also looks like new! Thanks again to Darius!

I'm also testing G-Sync for desktop cards. I took this possibility into account when developing my MXM board. I'll get back to you on this topic.

Hello Darius, Thank you very much again for your help with the graphics card. It has now arrived and looks like new!!! Now I can build it in peace and implement this card in the P870xx. 1. I'll measure the PCB for the DisplayPort channels and route the cables. 2. Design the brackets for the card. 3. Develop cooling—water or vapor chamber. Let's see what ideas I come up with. Best regards, Ralf

Hi, Many thanks to Darius. I'll pick up the card on Monday and continue building and developing. The first small subproject is the internal and external cable so that an internal display and an external display can be connected. I've already developed the schematic and, with Darius's help, I can now determine the exact length of the FlexPCB and start routing once I know the exact geometric ratios. The cables should work for all future generations. The second project will be the cooling system. In the short term, it will be water cooling, but there is also the option of making a vapor chamber like the original. However, I don't know the exact costs for that yet. That's all from me for now. Thanks for your support.

You can only try it out and use trial and error! To be honest, I don't really understand the need for Gsync. It's supposed to be a synchronization technology, but I think that if the graphics card, display, and CPU are good, this technology isn't really necessary. Sure, you can talk about personal preferences, but I think that's all it is!

Hi maro, just use the latest WQHL driver. That should do the trick!

Yes, this card is perfectly made. Although the other cards are also good. But this card is geometrically well done.

Hi everyone, I have some great news for my Desktop-GFX project! This graphics card from MSI is the perfect fit for the P870xx. The card is called MSI GeForce RTX 5070 Ti Ventus 3X PZ! Other cards also work very well, but this one is a perfect fit.

That's my development, and there's more! 🙂 Maro gave you tips... Greetz..

I would also be interested in this method! The method I use probably interferes the least with the BIOS without changing too many things.

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!