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 Tuesday at 09:31 PM by SuperMG

[Developer79]

10 hours ago, SuperMG said:

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

 

 

Hi,
Yes, you're right!
The adapter I developed also uses this pin assignment. I can control everything via jumpers on my board!
Pins 23/25 are simple jumpers for switching on, and pin 27 is pulse width modulated.
However, I found out during my tests that this pin is not necessary.

In the picture, you can see how I have taken the PINs into account on my board!

Greetz

[Developer79]

13 hours ago, Maro97 said:

PCIe 5.0 ?

Hi,
The 9th Gen Intel only uses PCIe 3.0!
But I can reassure you that an RTX5090 laptop with HX370 is not nearly as fast for gaming as the combination of P870TM 9th and RTX50xx desktop series!
I'm still running benchmarks.

[SuperMG]

59 minutes ago, Developer79 said:

Hi,
Yes, you're right!
The adapter I developed also uses this pin assignment. I can control everything via jumpers on my board!
Pins 23/25 are simple jumpers for switching on, and pin 27 is pulse width modulated.
However, I found out during my tests that this pin is not necessary.

In the picture, you can see how I have taken the PINs into account on my board!

Greetz

Yes but my screen is an eDP display, my Quadro P5200 and Quadro RTX 3000 have these pins I guess, otherwise that's why the RTX 4070 MXM doesn't work.

 

I don't see the screen powering on, on my laptop. However with a compatible card, first the screen backight powers on and then the video signal is out.

 

ZRT saw my messages but didn't even reply...

 

Does the RTX 3080 from clevo have these PANEL pins?

[Developer79]

16 minutes ago, SuperMG said:

Yes but my screen is an eDP display, my Quadro P5200 and Quadro RTX 3000 have these pins I guess, otherwise that's why the RTX 4070 MXM doesn't work.

 

I don't see the screen powering on, on my laptop. However with a compatible card, first the screen backight powers on and then the video signal is out.

 

ZRT saw my messages but didn't even reply...

 

Does the RTX 3080 from clevo have these PANEL pins?

Yes, clevo Crads have this Pins!

[SuperMG]

10 minutes ago, Developer79 said:

Yes, clevo Crads have this Pins!

ZRT/X-VSION Ampère doesn't even have eDP signals and the PANEL pins but Clevo Ampère does have them...

 

Which means ZRT/X-VSION Ada cards could potentially enable back the PANEL pins so we can finally use these cards on eDP display (P570, P870).

 

I'm still waiting a reply from ZRT because they once told me, they can do some "custom wiring", I'm not sure, but let's wait.

[Developer79]

7 minutes ago, SuperMG said:

ZRT/X-VSION Ampère doesn't even have eDP signals and the PANEL pins but Clevo Ampère does have them...

 

Which means ZRT/X-VSION Ada cards could potentially enable back the PANEL pins so we can finally use these cards on eDP display (P570, P870).

 

I'm still waiting a reply from ZRT because they once told me, they can do some "custom wiring", I'm not sure, but let's wait.

You can forget that question.
But you can still ask for clarification.
The MXM specification has defined these pins!!!

[SuperMG]

7 minutes ago, Developer79 said:

You can forget that question.
But you can still ask for clarification.
The MXM specification has defined these pins!!!

By question, you mean they won't make some custom wirings?

 

Yes these pins are on the specs, just that the manufacturer set them to N/A...

 

You can look up for en.zrt-tech online and look at the RTX 4060 MXM card, you can see the pins. I'm not to sure where to look at the physical pins (front or back of the PCB?, back?).

 

 

[Developer79]

5 minutes ago, SuperMG said:

By question, you mean they won't make some custom wirings?

 

Yes these pins are on the specs, just that the manufacturer set them to N/A...

 

You can look up for en.zrt-tech online and look at the RTX 4060 MXM card, you can see the pins. I'm not to sure where to look at the physical pins (front or back of the PCB?).

 

 

eDP pins are fixed, so the display power-on pins are also supported! You can see this in the pictures!

[SuperMG]

2 minutes ago, Developer79 said:

eDP pins are fixed, so the display power-on pins are also supported! You can see this in the pictures!

 

Yes the DP_D are fixed.

 

I looked and saw 3 pins on the back of the PCB. I hope these are the PANEL pins.

 

They have electrical lines but they are missing some IC and capacitors... I think the lines are here but not connected I suppose?

[Developer79]

17 minutes ago, SuperMG said:

 

Yes the DP_D are fixed.

 

I looked and saw 3 pins on the back of the PCB. I hope these are the PANEL pins.

 

They have electrical lines but they are missing some IC and capacitors... I think the lines are here but not connected I suppose?

You need to take a closer look at the back. Of course everything is routed. If it's routed, it works!

[SuperMG]

1 hour ago, Developer79 said:

You need to take a closer look at the back. Of course everything is routed. If it's routed, it works!

Hello here is a picture. (Updated picture)

 

Edited Wednesday at 11:25 AM by SuperMG

[SuperMG]

@Developer79

 

Hello, if the manufacturer doesn't want to add the components.

 

I wanna buy the card and ship it to you so you can test and probably mod it so it can display on your P870TM. If it works, then it'll work on my laptop too.

 

What do you think?

[Kastner]

5 hours ago, Developer79 said:

The adapter I developed also uses this pin assignment.

Is this adapter available for sale or you made for yourself?

Also how do you manage to power the GPU?
 

[Developer79]

9 hours ago, SuperMG said:

@Developer79

 

Hello, if the manufacturer doesn't want to add the components.

 

I wanna buy the card and ship it to you so you can test and probably mod it so it can display on your P870TM. If it works, then it'll work on my laptop too.

 

What do you think?

Hi,
thanks for your trust!
Yes, I'd be happy to test the card and help you!
Feel free to contact me!

[SuperMG]

8 minutes ago, Developer79 said:

Hi,
thanks for your trust!
Yes, I'd be happy to test the card and help you!
Feel free to contact me!

I mean I buy it for 620USD and ship it to you but you have to ship it back to me if you got the the eDP working on P870TM and any other old laptops with eDP as well.

 

I can pay you a little extra to fix these cards. Are you from Europe?

 

It's my only option if the manufacturer doesn't want to enable these 3 pins back or if they aren't willing to make full eDP compatibility for all laptops.

[Developer79]

8 hours ago, Kastner said:

Is this adapter available for sale or you made for yourself?

Also how do you manage to power the GPU?
 

Yes, I developed everything myself for the P870TM. It also works for the other P870xx models except for the P870DMG.
Good question about the power supply. I developed a power board to supply 12V. Everything runs internally via graphics card power supply for the GTX1080 SLI series for the P870xx at the time. I also have pictures of the installation and with my development tool. Then the laptop can be locked and used as built by Clevo.

 

[SuperMG]

12 hours ago, SuperMG said:

Hello here is a picture. (Updated picture)

 

Damn, this looks hard. I suppose PWR_SRC is where you get the power from the mobo/PSU connector, correct?

 

Did you also see my picture? Do you see what's wrong with pin 23, 25 and 27?

[Developer79]

7 minutes ago, SuperMG said:

Damn, this looks hard. I suppose PWR_SRC is where you get the power from the mobo/PSU connector, correct?

 

Did you also see my picture? Do you see what's wrong with pin 23, 25 and 27?

Yes, but everything is original in your project with the 4060 MXM. No, the pin assignment looks normal.

[SuperMG]

3 minutes ago, Developer79 said:

Yes, but everything is original in your project with the 4060 MXM. No, the pin assignment looks normal.

But... On the schematics it's says N/A on 3 of the pins.

 

Pin 25, has a missing component and it's for the PNL_BL_EN. I don't even know if the PWM pin is complete or no, I see some missing components next to it.

 

Pin 23 looks normal I guess? 

 

If you're saying everything is normal, then why these type of cards like X-VSION, doesn't work with my eDP display? But the Quadro RTX 3000 from HP works...

[Kastner]

7 hours ago, Developer79 said:

Yes, I developed everything myself for the P870TM. It also works for the other P870xx models except for the P870DMG.
Good question about the power supply. I developed a power board to supply 12V. Everything runs internally via graphics card power supply for the GTX1080 SLI series for the P870xx at the time. I also have pictures of the installation and with my development tool. Then the laptop can be locked and used as built by Clevo.

This is a truly amazing work! It is a next level of modding..

If this development complete that make MXM cards for P870 series dispensable.

I have a few more questions if you willing to give away your development info.

What is the output wattage of your DC-DC?

Could you use 2 DC-DC powering one from the master and the second from the slave? So you can have two 8 pin 150W.

The vapour designed for two 1080 with almost 400W in theory could it work with desktop card?

What about the big ones(4080/4090 and 5080/5090) with the 12VHPWR?

Do you planning to make a PSU for them or these are using too much?

Do you planning to make your own DP to eDP converter to use the internal screen?

[Developer79]

9 hours ago, SuperMG said:

But... On the schematics it's says N/A on 3 of the pins.

 

Pin 25, has a missing component and it's for the PNL_BL_EN. I don't even know if the PWM pin is complete or no, I see some missing components next to it.

 

Pin 23 looks normal I guess? 

 

If you're saying everything is normal, then why these type of cards like X-VSION, doesn't work with my eDP display? But the Quadro RTX 3000 from HP works...

Please send me a schematic diagram of the cards you have! Link! I can check everything again.

[SuperMG]

19 minutes ago, Developer79 said:

Please send me a schematic diagram of the cards you have! Link! I can check everything again.

Hello I already sent you everything in private message.

 

Also ZRT will initiate a meeting for the pin 23, 25 and 27, maybe hope.