SuperMG Posted Friday at 03:09 PM Share Posted Friday at 03:09 PM 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 Friday at 03:10 PM Share Posted Friday at 03:10 PM 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 Friday at 03:15 PM Share Posted Friday at 03:15 PM 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 Friday at 03:19 PM Share Posted Friday at 03:19 PM 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 Friday at 03:48 PM Share Posted Friday at 03:48 PM (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 Friday at 08:51 PM by SuperMG Link to comment Share on other sites More sharing options...
Developer79 Posted 17 hours ago Share Posted 17 hours ago 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 13 hours ago Share Posted 13 hours ago @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 13 hours ago Share Posted 13 hours ago 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 13 hours ago Share Posted 13 hours ago 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 13 hours ago Share Posted 13 hours ago 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 8 hours ago Share Posted 8 hours ago looks Everything works great with internal LCD ? right ? Link to comment Share on other sites More sharing options...
Maro97 Posted 8 hours ago Share Posted 8 hours ago YOU NEED ME TO TEST IT 🙂 Link to comment Share on other sites More sharing options...
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