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 (DM me) 18€ on eBay (listing available, just search for it) 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!

New custom heatsink for the P570WM! Will arrive soon to me. I have 3 of them available, if someone wants to buy one, let me know. Compatible for the MXM cards with centered die! Such as RTX A3000,3060,3070,3070 Ti,3080, 3080 Ti,A4500,4080,4090 from X-VSION and ZRT! Up to 175W of heat compatibility! 4 heatpipes for the GPU cores and aluminium cooling for the VRAM/VRM!

They are offline for weeks

Yes

Hello. It's late I know. These cards from Aetina, ZRT and X-VSION aren't working with eDP laptops screen, despite having eDP or DP on port D. You need to mod your MXM slot to bring back something. You see, the screen needs to get started in order to display something and the backlight isn't on... You need to mod and make the backlighting work again. These cards work on Optimus too.

@Developer79 Hello are pins 278 and 280 mandatory like pin 240 and 242? Or should they always pass to the GPU? It's just one line with some capacitors on the way. Some MXM cards don't have them visible, maybe it's inside the multi-layered PCB.

Yes, I recommend PayPal too... but they aren't helping me right now... They don't want to test the backlight mod to bring back display on their test eDP laptop... Their response time now isn't very reactive ATM.

I got a Xeon E-2286M QS and I'll undervolt it. The seller said he can't modify "the bios". Where can I get the latest bios for it? P870KM. I found one online for 9900KS 128GB Thanks.

Hello I did this and it's in production Yes for the 3 pins, the reverse side will have some very thin layer of double-sided tape. I added some shapes to the extremities so we can stick with some tape. Won't short-circuit, can handle over 230C of ambient temperature.

M17X R4 is the same M17X R3 eDP in terms of MXM pinouts and connector. Did the Quadro Pascal or GTX 1070M ever work on the R3? Because they do on the R4.

Hello some news! The manufacturing has started! I'll get the samples maybe this week, but I'm not sure. Here are some pictures on how the backlight mod should work: Here is how it should sit on the top side of the MXM card This mod will work on any Turing to Ada MXM cards that are lacking the 3 backlight panel pins and also the ones who have eDP or DP on port D! You'll finally have a display on your internal screen!

Yes

Pascal doesn't run on LVDS display of your M18X R2. You're stuck with a GTX 980M or M5000M for that type of display. Pascal only does eDP display. You can still do M5000M for master + P4000 for slave or Intel HD + P4000 in SG.

Already planned an instruction for that. All the measurements for the pins and pitch are good! It's just about installing it on the right pins! The instruction could help! So it's kinda safe if you know what you're doing! Just like soldering! Always a risk if you don't know what you're doing

Hello people! Good news! I made some progress to get the RTX Turing, Ampere and Ada cards to work on the eDP display! Brands like Aetina, Adlink, PNY, X-VSION and ZRT will work with the mod I'm going to manufacture the next week! All of these cards have something in common... They all miss the 3 backlight pins and they all have eDP or DP on the port D (DP_D)! That's it! With my new solution, it'll be a solder-less mod! It'll be easy to apply on the pads of the MXM card with a very flexible flex cable! In theory it'll work 100% like the solder mod! Stay tuned for other updates!

Hello guys. I managed to finish the design and I'll find a manufacturer. Edit: I found a manufacturer for making the flex cable mod! It'll get produced on monday

Hello. Do you know the width of one MXM pin? Is it 0.3mm? 0.35mm? Literally no information online other than one thing... 0.5mm pitch, that's it. Here's how it should be.

@Developer79 Solder-less idea, using thin flex cables and one wire. (Sorry for the bad example)

I compared some Clevo P7XX and P870 they do indeed have the same pinouts! Same for the Alienware M17X R4 (it has a mux switch for the eDP connector unlike Clevo) The backlight pins are universal. I can't confirm if other laptops are compatible with that. Some may have different signals for eDP like not being set for port D... Better find the MXM pinouts diagram for your laptop!

4050,4060,4070 eDP YES only if MXM port is modded. 3060, 3070, 3080 could also work, although they have DP on port D, it'll theorically work. If anyone wants to try, go ahead and do what the picture shows. Developer79 tested this wiring setup and got the 4070 from XVSION to work with his eDP screen. @janepa

Hello. Are you sure? I get it, you need pure-UEFI or it won't ever boot. But I saw the schematics for the M17X R4 and I see that eDP is on port D and not C. Where did you find out it was on port C?

Hello. Here's a new clear picture. It shows how to do the mod. It's the right one. I checked the datasheet for the RTX 3060/3070/3080 (from X-VSION, probably the same for ZRT). They also lack the backlight pins 23,25,27 and the vbios don't have eDP. Although, they have DP on DP_D. Theorically, if the backlight pins are modded like on the picture I've sent, the DP could be displayed in the eDP screen! I know you 4 guys have the RTX 3060 or 3080 from X-Vsion. If you have an eDP laptop that has signals for DP_D between pins 206 and 236 of the MXM slot, you can try this mod and let us know please! @sliderfra @therhor70 @aldarxt @ssj92

So even, if the vbios states it's DP on DP_D. If I enable the backlight pins, using the mod, the DP signal would be projected on the eDP screen? Despite the vbios not having eDP set for DP_D?

@Developer79 @sliderfra Hello. I received the datasheet for the RTX 3060/3070/3080 MXM cards from X-VSION. They all have DP out for DP_D. They also all lack the pin 23, 25 and 27! But, are you sure that a DP signal would be compatible for an eDP display? Like, if we enable the backlight pins 23, 25, 27 by modding the MXM port? @sliderfrasince you have an RTX 3060 MXM, do you have a compatible eDP laptop? (Beside Alienware), like a clevo or a HP? So you can test if your 3060 can display on the master slot, "if the DP could display on the screen if the backlight pins are enabled".

I looked at ZRT side, the eDP is on port D and the HDMI on port E. I don't understand X-VSION specs. There's no way you have eDP on port E!! The vbios clearly has eDP because it shows it on the Nvidia control panel. (I have Quadro RTX 3000 + 4090 as slave) @Maro97if you know how to solder, you can go ahead and do the mods. If you want more explanation on the mod, please send me a private message. Thank you. Edit: the 4080 and 4090 aren't even working with my external HDMI and DP out.... But the RTX 4070 and 3060 worked with DP and HDMI out, strange...