SuperMG Posted Friday at 09:23 PM Share Posted Friday at 09:23 PM (edited) 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! 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. It's in production right now, I'll test the cables if they work and I'll sell them to you! Price: Soon 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 A4500, RTX 3000, RTX 4000, RTX 5000 (Aetina, PNY, Adlink) (Tell me if I forgot some cards) Disclaimer! 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 whitelists. After a lot of research and some testing with soldering, that's the conclusion to the solution! Thank you! Edited Saturday at 08:26 AM by SuperMG 2 Link to comment Share on other sites More sharing options...
SuperMG Posted Friday at 09:27 PM Author Share Posted Friday at 09:27 PM I contacted ZRT, X-VSION to bring back the backlight supports, they didn't seem to care at all! So I stepped in! 1 Link to comment Share on other sites More sharing options...
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