Finally the new RTX MXM cards will work in our laptops!

[SuperMG]

Hello everyone!

 

Do you want to upgrade your old laptop MXM GPU? But you can't since the newest RTX Turing, Ampere and Ada aren't working with your eDP display?

 

I have the solution for you!

 

The backlight mod to enable eDP display for your MXM card!

 

Finally the mystery was resolved on why these cards don't display in our eDP laptops.

 

Every cards from Turing to Ada generation, from brands like Aetina, Adlink, PNY, ZRT and X-Vsion will work with this mod!

 

What was the issue with these cards then? They were all lacking 3 essential pins. These pins are used to power on the panel. They are called backlight pins!

 

Without them, your screen stays black, even if you have eDP or DP signal in the right video port.

 

The solution: Making a solder-less mod, a flex FPC cable that allows to power the 3 backlight pins with ease!

 

 

 

Version 1 manufactured.

 

 

The 3 backlight pins are set in 23, 25 and 27 pins of the MXM slot and the MXM card.

What we're trying to do is to power the backlight pins using the 3.3V from the pins 278 and 280, that's it!

 

The flex cable is going to be insulated and will be able to handle high temperatures! I'll use double-sided insulated tape for the back side of the backlight pins, to secure the installation.

 

Where can I get one? You might ask. You can purchase them online, I'll even give a PDF file for instructions.

 

Price (without shipping): 16.5€ on PayPal Friendly 

18€ on eBay

 

We can finally have an RTX 4080 or an RTX 4090 in the master slot of the MXM and output thru the main eDP display!

 

Clevo P870 with dual RTX 4090? P570WM with an RTX 4090?! P775 with an RTX 3080 Ti?!

 

Will work with (for MXM slot that allows eDP or DP on DP_D and cards that lack the backlight pins)

 

RTX A3000 (XVSION), RTX 3060, RTX 3070, RTX 3070 TI, RTX 3080, RTX 3080 Ti (ZRT, X-VSION)

 

RTX 4050, RTX 4060, RTX 4070, RTX 4080, RTX 4090 (ZRT, X-VSION)

 

RTX 3500 Ada (Aetina), RTX 5000 Ada (Aetina), RTX A4500, RTX 3000, RTX 4000, RTX 5000 (Aetina, PNY, Adlink)

 

(Tell me if I forgot some cards)

 

Brightness control works on my P570WM with 4080 and 4090 if the vbios is set to eDP out.

Sleep mode and saving modes work.

 

RTX 3000 PNY and RTX 4070 worked on the Clevo P870, need to test more cards such as 4080 and 4090.

 

Disclaimer, Requirements!

 

- This mod can work with laptops that have the eDP set to DP_D and has the backlight pins assigned in 23, 25 and 27 pins in the slot

- The BIOS of the laptop shouldn't have any whitelist

- The BIOS should be in pure-UEFI

 

- You need to have an eDP display that supports DP 1.1-1.2 (2011-2013 laptops) at least for RTX Ampere GPU

- You need to have an eDP display that supports DP 1.3-1.4 (2014-2019 laptops) at least for the new RTX Ada (or install/edit EDID data in the OS with old DP 1.1-1.2 screens)

 

___________________

 

After a lot of research and some testing with soldering, that's the conclusion to the solution!

 

Thank you!

 

Edited 18 hours ago by SuperMG
News

[SuperMG]

I contacted ZRT, X-VSION to bring back the backlight supports, they didn't seem to care at all! So I stepped in!

[MELOCODI]

No way, dude, I was just starting to investigate the MXM slot side of things to get 4060 working in my M4800, that's a HUGE milestone for MXM laptops. Thank you! Hope to see the finished product soon!

[Bottlenecker3Billion]

This is huge.

[TruenoG7]

On 12/9/2025 at 17:23, SuperMG said:

Hola a todos.

 

Quieres actualizar tu vieja portátil MXM GPU? Pero no puedes desde que los nuevos RTX Turing, Ampere y Ada no están trabajando con tu pantalla de eDP?

 

Tengo la solución para ti.

 

El mod de retroiluminación para activar la pantalla de eDP para su tarjeta MXM.

 

Finalmente el misterio se resolvió sobre por qué estas tarjetas no se muestran en nuestras computadoras portátiles eDP.

 

Cada carta de la generación de Turing a Ada, de marcas como Aetina, Adlink, PNY, ZRT y X-Vsion funcionarán con este mod.

 

Cuál era el problema de estas tarjetas entonces? A todos les faltaban 3 alfileres esenciales. Estos alfileres se utilizan para alimentar el panel. Se les llama alfileres de luz.

 

Sin ellos, tu pantalla se mantiene negra, incluso si tienes señal de eDP o DP en el puerto de vídeo adecuado.

 

La solución: Hacer un mod sin soldadura, un cable FPC flexible que permite alimentar los 3 pines de luz con facilidad.

 

 

 

Los 3 pasadores de luz están enstalados en 23, 25 y 27 pines de la ranura MXM y la tarjeta MXM.

Lo que estamos tratando de hacer es alimentar los alfileres de la luz usando el 3.3V de los alfileres 278 y 280, eso es todo.

 

El cable flex se va a aislar y será capaz de manejar altas temperaturas. Usaré cinta aislante de doble cara para la parte trasera de los pasadores de la luz trasera, para asegurar la instalación.

 

Dónde puedo conseguir uno? Puedes preguntar. Está en producción ahora mismo, probaré los cables si funcionan y te los venderé.

 

Precio: Pronto

 

Finalmente podemos tener un RTX 4080 o un RTX 4090 en la ranura maestra del MXM y salida a través de la pantalla eDP principal.

 

Clevo P870 con la dual RTX 4090? P570WM con un RTX 4090? P775 con un RTX 3080 Ti?

 

Trabajará con (para la ranura MXM que permite eDP o DP en DP-D y tarjetas que carecen de los pasadores de luz de espalda)

 

RTX A3000 (XVSION), RTX 3060, RTX 3070, RTX 3070 TI, RTX 3080, RTX 3080 Ti (ZRT, X-VSION)

 

RTX 4050, RTX 4060, RTX 4070, RTX 4080, RTX 4090 (ZRT, X-VSION)

 

RTX 3500 Ada (Aetina), RTX A4500, RTX 3000, RTX 4000, RTX 5000 (Aetina, PNY, Adlink)

 

(Dime si olvidé algunas cartas)

 

Descargo de responsabilidad. Este mod puede trabajar con computadoras portátiles que tienen el eDP configurado a DP-D y tiene los pasadores de luz trasera asignados en 23, 25 y 27 pins en la ranura. El BIOS de la computadora portátil no tiene que tener blanca lista.

 

Después de mucha investigación y algunas pruebas con la soldadura, esa conclusión es la solución a la solución.

 

- Gracias.

 

Greetings good man, can you find out if my Alienware 18 (2015) Viking supports this mod, or is compatible, if so I would be very happy to buy it.

[SuperMG]

33 minutes ago, TruenoG7 said:

Greetings good man, can you find out if my Alienware 18 (2015) Viking supports this mod, or is compatible, if so I would be very happy to buy it.

Does the main screen do eDP?

[SuperMG]

News about the solder mod for backlight mods:

 

 

[sliderfra]

4 hours ago, TruenoG7 said:

Greetings good man, can you find out if my Alienware 18 (2015) Viking supports this mod, or is compatible, if so I would be very happy to buy it.

Hi.

No AW 18 is LVDS unfortunately

[SuperMG]

News, the production of the v1 is finally finished!

 

I'll receive the 35 pieces I have ordered in 5 days. I hope they better fit between the MXM slot and the MXM card! There's a 0.15mm total thickness so it's good! But will they work in the real world? Let's test!

 

So yes. I'll save 3 pieces for myself and I'll list 32 pieces online. Either PayPal payments or on eBay.

[ssj92]

I wonder if adlink rtx 3000 can also work with this or that card doesn't work with edp at all

[SuperMG]

6 minutes ago, ssj92 said:

I wonder if adlink rtx 3000 can also work with this or that card doesn't work with edp at all

It'll work.

 

Because Sliderfra tested the solder mod and his PNY RTX 3000 worked.

 

PNY, ADLINK and AETINA share the same PCB, for 3000, 4000, 5000. Please compare the PCB and you'll understand 

[loopster]

I've got an ADLINK RTX 3000 running in a Zbook 17 G1 with hybrid graphics enabled.

Would this mod allow the card to display in hybrid graphics disabled-mode?

I wonder what the performance difference would be...?

[Aaron44126]

17 minutes ago, loopster said:

Would this mod allow the card to display in hybrid graphics disabled-mode?

 

IIRC, Zbook 17 G1 uses LVDS for the display and not eDP, so this mod would not apply. (Newer NVIDIA laptop GPUs do not support LVDS at all. You can only use them by passing through the Intel integrated GPU.)

[SuperMG]

If some of you didn't see.

 

Hello, here are some news about the flex FPC cables! Yes I got them and I applied them easily on the GPU with my bare fingers.

 

Here's the result, an RTX 3080 MXM (DP, non-eDP) inside a 2012 laptop's master MXM slot! 1080p 120Hz, Sleep/Saving modes work! Brightness control works for my laptop but it depends... maybe for yours it won't work.

 

My laptop is using the DP 1.1 or 1.2 protocol. I tried the 4080/4090 (DP++), they worked, displayed on the main eDP screen but they failed the drivers installation because of a blackscreen after Nvidia checking the display/connectors. Because my laptop and its screen is too old to accept the obligatory DP++ (DP 1.3/1.4 protocol).

 

Maybe a different vbios of the 4080/4090 with a basic DP or eDP would work on my laptop?

 

If your laptop is from 2015-2019, the RTX 4080/4090 will work because yours is compatible with DP++. I'll test that using a P870 and a Dell Precision 7720.

 

So yes, Nvidia Pascal isn't the best generation anymore for our MXM laptops, it's Ampère/Ada!

[Jerryzago]

I am tempted to replace the screen and cable to my AW 17 with the 120hz one and the edp cable......I will make the RTX 3000 work in PEG mode then!

[SuperMG]

Good some news!!

 

After playing around with EDID configurations and windows startup scripts, I managed to use an RTX 4080 MXM on a DP 1.1/1.2 2012 laptop! No more black screens after the loading screen!

 

So the Ampère wasn't the maximum for this laptop! With a bit of trickery on the OS, I managed to get the RTX 4080 to work on my P570WM.

 

Brightness control = working

Sleep mode = working 

Saving mode = working 

 

No problem on the GPU side, full TDP boost.

 

NVIDIA recognise it has a NON HDCP display, at 1080p 120Hz at 2.7Gbps and eDP.

 

 

The 3080 doesn't have brightness control once the drivers are installed because it's a DP based output and not an eDP based one. (Could find a workaround on Windows to bring back the brightness control, depending if your motherboard supports that)

 

For laptops using DP 1.3/1.4 (2014-2019), you don't need to do any modification regarding to your OS because your eDP screen is compatible with the newer bandwidths. I need to try to use the 4080 on the P870/Dell Precision 7720 to reconfirm that.

 

All thanks to the flex FPC cable that allows such easy modification, no more soldering required for MXM eDP laptops!

 

The cables are available for sale. Either PayPal friendly or on eBay + a pdf guide (DM me)

 

[rockmanx97]

If I were to install a RTX 2070 Super MXM or a Aetina RTX 4080 in a Clevo X170KM would I need to edit the drivers inf for it to work?

[SuperMG]

1 hour ago, rockmanx97 said:

If I were to install a RTX 2070 Super MXM or a Aetina RTX 4080 in a Clevo X170KM would I need to edit the drivers inf for it to work?

Do normal standard powered MXM GPUs work on this laptop? If yes, then it's ok.

 

Yes Aetina, X-VSION, ZRT 4080/4090 and an eDP display would work.

 

Since when 2070 Super MXM exist? Is that a Clevo variant with the power connector? It works out of the box without any flex FPC cable mod.

 

You only have to edit the drivers .inf file or you can use NVCleaninstall to install the drivers easily.

[rockmanx97]

20 minutes ago, SuperMG said:

Do normal standard powered MXM GPUs work on this laptop? If yes, then it's ok.

 

Yes Aetina, X-VSION, ZRT 4080/4090 and an eDP display would work.

 

Since when 2070 Super MXM exist? Is that a Clevo variant with the power connector? It works out of the box without any flex FPC cable mod.

 

You only have to edit the drivers .inf file or you can use NVCleaninstall to install the drivers easily.

What about the inf do I need to edit? 

[SuperMG]

3 minutes ago, rockmanx97 said:

What about the inf do I need to edit? 

You can use NVCleaninstall if you don't understand the editing of an .inf file.