SuperMG Posted August 29 Share Posted August 29 1 hour ago, Developer79 said: I made a stupid mistake with my P870TM motherboard. Now it's broken. Does anyone know where I can get a good used one? On eBay there's a cheap P870DM for 380€ but it's shipped in the USA. There's also a P870TM on Leboncoin.fr if you negotiate with the guy, you can get the whole combo (without ram, without GPU, without SSD) for 500€ How did you break your motherboard? Did it also break my 4070 MXM card? Did you hear any sparks? Is it only your MXM port that got damaged? (Bad pins, bend pins?) Link to comment Share on other sites More sharing options...
SuperMG Posted August 29 Share Posted August 29 2 hours ago, Maro97 said: V.good news So rtx 4090 from x-vision will work Depends. This one has like 2 HDMI and 2 DP out. The vbios indeed has eDP support but for which port? on D or E? Link to comment Share on other sites More sharing options...
Maro97 Posted August 29 Share Posted August 29 4 minutes ago, SuperMG said: Depends. This one has like 2 HDMI and 2 DP out. The vbios indeed has eDP support but for which port? on D or E? Link to comment Share on other sites More sharing options...
SuperMG Posted August 29 Share Posted August 29 2 minutes ago, Maro97 said: But that's not eDP! It's regular DP on the VBIOS! Although eDP and DP are sharing the same exact 11 signals (without counting the GND) Can a regular DP out with the 23,25,27 pins display on the eDP display? @Developer79 Link to comment Share on other sites More sharing options...
SuperMG Posted August 29 Share Posted August 29 (edited) 5 hours ago, Maro97 said: 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... Edited August 29 by SuperMG Link to comment Share on other sites More sharing options...
Developer79 Posted September 1 Share Posted September 1 On 8/29/2025 at 5:48 PM, SuperMG said: 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... The RTX4070 MXM worked without any problems with my P870TM. Unfortunately, I have to get a new motherboard first because I broke my motherboard due to a stupid mistake! MXM generally always has the same specifications and is therefore always compatible. I have shown that it works. Link to comment Share on other sites More sharing options...
SuperMG Posted September 1 Share Posted September 1 @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". Link to comment Share on other sites More sharing options...
Developer79 Posted September 1 Share Posted September 1 8 minutes ago, SuperMG said: @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". The P870TM model is compatible! I have demonstrated this. Link to comment Share on other sites More sharing options...
SuperMG Posted September 1 Share Posted September 1 5 minutes ago, Developer79 said: The P870TM model is compatible! I have demonstrated this. 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? Link to comment Share on other sites More sharing options...
Developer79 Posted September 1 Share Posted September 1 here is antoher test with Cyberpunk 2077: CPU 9900KF / RTX5070Ti Interested AMD R7 8700X3d nad R79800x3d! 1 Link to comment Share on other sites More sharing options...
Maro97 Posted September 1 Share Posted September 1 looks Everything works great with internal LCD ? right ? Link to comment Share on other sites More sharing options...
Maro97 Posted September 1 Share Posted September 1 YOU NEED ME TO TEST IT 🙂 Link to comment Share on other sites More sharing options...
Maro97 Posted Tuesday at 06:55 AM Share Posted Tuesday at 06:55 AM This shit mounted on the inside of the back cover reduced the temperature by 5°C — I recommend removing it. 1 Link to comment Share on other sites More sharing options...
Maro97 Posted Tuesday at 09:47 AM Share Posted Tuesday at 09:47 AM 3 hours ago, Maro97 said: This shit mounted on the inside of the back cover reduced the temperature by 5°C — I recommend removing it. The room temperature is 24°C. Developer79 heatsink worth to buy 👍 1 Link to comment Share on other sites More sharing options...
Maro97 Posted Tuesday at 10:48 AM Share Posted Tuesday at 10:48 AM 1 hour ago, Maro97 said: The room temperature is 24°C. Developer79 heatsink worth to buy 👍 i'm using ... thermal grizzly kryonaut not Extreme 1 Link to comment Share on other sites More sharing options...
SuperMG Posted yesterday at 02:35 PM Share Posted yesterday at 02:35 PM On 9/1/2025 at 12:19 PM, SuperMG said: 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? 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! 1 Link to comment Share on other sites More sharing options...
Developer79 Posted yesterday at 05:59 PM Share Posted yesterday at 05:59 PM 3 hours ago, SuperMG said: 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! It's not yet clear whether it will work or not! We need to investigate further to see if it's possible. It depends on the laptop and display... With the board I've developed, you can test different scenarios! Link to comment Share on other sites More sharing options...
Developer79 Posted yesterday at 06:00 PM Share Posted yesterday at 06:00 PM 4 minutes ago, Developer79 said: Link to comment Share on other sites More sharing options...
Developer79 Posted yesterday at 06:01 PM Share Posted yesterday at 06:01 PM 3 hours ago, SuperMG said: 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! You can try testing it yourself with the cable, but you need to be careful. Link to comment Share on other sites More sharing options...
Developer79 Posted yesterday at 06:09 PM Share Posted yesterday at 06:09 PM On 9/2/2025 at 11:47 AM, Maro97 said: The room temperature is 24°C. Developer79 heatsink worth to buy 👍 Thanks!:-) Link to comment Share on other sites More sharing options...
Developer79 Posted yesterday at 06:38 PM Share Posted yesterday at 06:38 PM Here's another test with 3DMark so you can see how powerful an RTX5070Ti is in the P870xx! The latest tests all show that the latest generation of CPUs for laptops and desktops doesn't play a huge role in gaming! Whether it's Intel or AMD!!! That's my experience. I also reduced the power consumption of the graphics card a little 250W! 2 Link to comment Share on other sites More sharing options...
SuperMG Posted yesterday at 07:02 PM Share Posted yesterday at 07:02 PM (edited) 1 hour ago, Developer79 said: You can try testing it yourself with the cable, but you need to be careful. 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 Edited yesterday at 07:08 PM by SuperMG Link to comment Share on other sites More sharing options...
Developer79 Posted 11 hours ago Share Posted 11 hours ago 14 hours ago, SuperMG said: 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 If you're careful, yes! But if not, you can damage the 3.3V rail in your laptop. Just so you know. Link to comment Share on other sites More sharing options...
Developer79 Posted 11 hours ago Share Posted 11 hours ago 14 hours ago, Developer79 said: Here's another test with 3DMark so you can see how powerful an RTX5070Ti is in the P870xx! The latest tests all show that the latest generation of CPUs for laptops and desktops doesn't play a huge role in gaming! Whether it's Intel or AMD!!! That's my experience. I also reduced the power consumption of the graphics card a little 250W! You can also work with the original power of 300W, but I wanted to test lower power and similar performance. Link to comment Share on other sites More sharing options...
zex4 Posted 10 hours ago Share Posted 10 hours ago I wished this modification was also possible on the p775 but of course not much space available as 870 😞 😞 i used the adt mxm adapter time ago but it was not comfortable with the long cable plus the psu conntected to gpu... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now