clevo p870tm/tm1-g Official Clevo P870TM-G Thread

[Developer79]

New RTX5070ti Support for P870xx Series:

[Maro97]

PCIe 5.0 ?

[SuperMG]

On 8/18/2025 at 5:11 PM, Developer79 said:

New RTX5070ti Support for P870xx Series:

Hello. 

 

It's interesting because I'm trying to upgrade a Clevo P570WM laptop that has an eDP screen.

 

This PC can be upgraded max to the Turing generation GPU such as Quadro RTX 3000,4000,5000 from HP because it has eDP on port D on the master MXM.

 

And on the MXM slave connector, I have an RTX 4090 MXM.

 

Now what I'm trying to do, make the X-VSION/ZRT RTX 4060/4070 work on this laptop.

 

I looked at the schematics and saw that my mxm connector and the new cards have the same signals for DP_D, which is eDP signal.

 

It's all good but... There's one problem. While comparing the pins, I saw 3 pins that were related to PANEL.

 

23 PNL_PWR_EN

25 PNL_BL_EN

27 PNL_BL_PWM

 

These pins are for the backlight of the internal screen, so the eDP screen.

 

I suppose without them, I think the screen won't even power on despite having the right video signal on DP_D? Is that correct?

 

The ZRT/X-VSION 4060/4070 have the pins set to N/A, which means blank pins, no signal at all.

 

Does that mean, we have a working eDP signal but no backlight support? Any idea?

 

For reference, I tested the RTX 4070 from X-VSION on my laptop, it won't display anything on the screen but the computer boots to windows. I can connect to DP and HDMI and it displays on external screen.

 

My MXM connector is literally the same as the P870TM1 connector.

 

Ps: I'm also developing a new 175W MXM heatsink for the "centered offset GPUs" so my 4080 and 4090 won't throttle

 

 

Edited 18 minutes ago by SuperMG