SuperMG Posted October 11 Author Share Posted October 11 Flex FPC cable mod works on Dell Precision 7720 with an RTX 4070 and 4080. Sleep mode works, brightness control doesn't work on this motherboard. Link to comment Share on other sites More sharing options...
SuperMG Posted October 12 Author Share Posted October 12 I'm gonna manufacture some P870 T heatsinks for the new RTX "center offset cards". So the 3080, 3080 Ti, A4500, 4080 and 4090 would work because I wanted to try the 4080 but it doesn't fit Link to comment Share on other sites More sharing options...
SuperMG Posted October 13 Author Share Posted October 13 (edited) On 10/12/2025 at 10:18 PM, SuperMG said: I'm gonna manufacture some P870 T heatsinks for the new RTX "center offset cards". So the 3080, 3080 Ti, A4500, 4080 and 4090 would work because I wanted to try the 4080 but it doesn't fit Yes, the 4080 and 4090 work, I tested with an OEM P570WM heatsink + Noctua 12cm 5V USB fan. As we know, 4070 works on clevo P870 with the drivers, with the backlight mod. I did a discovery about the X-VSION's 4080 and 4090. Black screen at the end of the installation of the drivers!! I then took my instructions and did the "EDID manipulation with CRU". After that, I got a display with the drivers installed, no problems. I can even reboot without having to set for a startup and shutdown scripts!! Sleep and savings mode work! So for my P570WM3, I have to do the EDID manipulation then set the scripts For my P870, "only one time" EDID manipulation and then install the display. No need to do the extra steps. Very strange that the 4070 works fine with eDP but for the X-VSION's 4080/4090, you have to take some "extra steps" despite being a newer eDP display... I'll try and get a 1440p 120Hz display and a 40pin cable for the P870 and see if I need to do the extra steps or not. Yes these cards work great on the laptop. Edited October 17 by SuperMG Link to comment Share on other sites More sharing options...
joluke Posted October 17 Share Posted October 17 Would this work in a Clevo P775DM3-G ? i got the dsanke BIOS from the TM1 1.07.29 with a 8700k CPU and this LCD: AUO B173HAN03.1 (g-sync working) @SuperMG you should sell the cable on tindie so we could purchase it more easily 🙂 Clevo P775DM3-G modded with 8700k - 48GB DDR4 - AUO LCD at 144hz - 4xSSDs Link to comment Share on other sites More sharing options...
SuperMG Posted October 17 Author Share Posted October 17 9 hours ago, joluke said: Would this work in a Clevo P775DM3-G ? i got the dsanke BIOS from the TM1 1.07.29 with a 8700k CPU and this LCD: AUO B173HAN03.1 (g-sync working) @SuperMG you should sell the cable on tindie so we could purchase it more easily 🙂 Yes, it works on P570WM3, P870KM, Dell Precision 7720. So of course it'll work for you. Since you have an eDP system, it'll work easily. You have a 4k screen? You might have a HBR2 display so it'll work, just try. Link to comment Share on other sites More sharing options...
joluke Posted October 17 Share Posted October 17 It's not a 4k display. 1080p at 144hz with gsync working. BTW do you know any stores that sell gpu's besides ebay? Can't seem to find any reliable ones Clevo P775DM3-G modded with 8700k - 48GB DDR4 - AUO LCD at 144hz - 4xSSDs Link to comment Share on other sites More sharing options...
joluke Posted October 17 Share Posted October 17 Anyone can share reliable stores to buy rtx mxm Nvidia gpu's from? Don't wanna be scammed on ebay Clevo P775DM3-G modded with 8700k - 48GB DDR4 - AUO LCD at 144hz - 4xSSDs Link to comment Share on other sites More sharing options...
SuperMG Posted October 18 Author Share Posted October 18 On 10/17/2025 at 7:28 PM, joluke said: Anyone can share reliable stores to buy rtx mxm Nvidia gpu's from? Don't wanna be scammed on ebay X-VSION and ZRT. I bought from X-VSION, I could have bought at ZRT but it's expensive. Your screen is HBR2. So that's good. I also bought one HBR2 screen 1440p 120Hz, I'll try it with 4080 and see. 1 Link to comment Share on other sites More sharing options...
SuperMG Posted October 29 Author Share Posted October 29 Okay, news about the instructions. I tested the 1440p 120Hz HBR2 screen and it does the same result for the 4080/4090. I think the X-VSION VBIOS for these cards don't have the right eDP protocol... Meanwhile the 3080, 4050 and 4060 (same PCB and outputs as 4070), 4070 do work! Updated: https://drive.google.com/file/d/1FCMs9ReCp5HWyfcnDeAVa-W8XfGSV67b/view?usp=drivesdk Link to comment Share on other sites More sharing options...
SuperMG Posted November 4 Author Share Posted November 4 (edited) Got some news. The VBIOS for the 4080 and 4090 from X-VSION are from Frankenstein PCIe RTX 4080M and 4090M. These GPU use 2 DP and 2 HDMI like XVSION. And they have the same VBIOS number version! These PCIe cards do not use the eDP output on DP_D, since they have a custom PCB to rely on the output. Maybe the eDP is disabled for any output on the VBIOS but still is there. By doing EDID manipulation, the eDP works back... A manufacturer of these GPU told me that the VBIOS are made by "ISUS" and I don't even know where to contact them about a possibility to edit the vbios and bring back some good eDP support without having to do the EDID manipulation. I do not recommend getting RTX 4080 and 4090 from X-VSION as their vbios are not "laptop-friendly". Get the ZRT RTX 4080 and 4090 instead. They have the right outputs DP/DP/HDMI/eDP. Yes they advertised eDP unlike X-VSION. Maybe they have a better VBIOS that doesn't require us to do the EDID manipulation. For X-VSION 4080 and 4090, it could be a wise idea to obtain ZRT's VBIOS and flash them on the X-VSION 4080 and 4090 cards. News again: ZRT VBIOS for 4080 is 95.04.3A.00.0E but can't find anything online XVSION VBIOS for 4080 is 95.04.1F.00.14 Both have the same 27A0 GPUID. Meanwhile, my flex FPC cable mod works. It's on sale on eBay and you can DM me for the link to purchase. Tested on multiple laptops and they work for displaying on the EDP screen. Edited November 9 by SuperMG Link to comment Share on other sites More sharing options...
SuperMG Posted November 27 Author Share Posted November 27 (edited) Hello. Still no news about ZRT's VBIOS or about any VBIOS that can make the 4080/4090 to work normally without EDID manipulation... Found vbios version of the ZRT 4090: 95.03.2A.00.1d, sadly no DOWNLOADS online. X-Vsion version is 95.03.2A.00.1e (only the last hexadecimal changed) I also got the RTX 4070 to work again on a Dell Precision 7720 without any issues, needed to do some heatsink mods and use my flex FPC cable to enable eDP backlight support. The temperatures are good on both CPU and GPU side. All display outputs work. (mDP, eDP, HDMI) Some cables are still available for purchase on eBay! Edited December 1 by SuperMG Link to comment Share on other sites More sharing options...
Derpmaster69 Posted Friday at 03:53 AM Share Posted Friday at 03:53 AM @SuperMGwill the flex cable mod work on zbook 15 g2, it only has an eDP display (so no LVDS). I plan on getting a PELADN rtx 4060 MXM since XVSION 4060 will not probably work as they pull 115W (Zbook 15 g2 has an MXM a slot max 75W. My main question is, does the zbook 15 g2 have the backlight pins as needed or should I solder them in another way? Nice hack by the way to show that socketed laptops will always stay superior Sorry for tagging you if it was offensive Link to comment Share on other sites More sharing options...
SuperMG Posted Friday at 05:49 AM Author Share Posted Friday at 05:49 AM 1 hour ago, Derpmaster69 said: @SuperMGwill the flex cable mod work on zbook 15 g2, it only has an eDP display (so no LVDS). I plan on getting a PELADN rtx 4060 MXM since XVSION 4060 will not probably work as they pull 115W (Zbook 15 g2 has an MXM a slot max 75W. My main question is, does the zbook 15 g2 have the backlight pins as needed or should I solder them in another way? Nice hack by the way to show that socketed laptops will always stay superior Sorry for tagging you if it was offensive Yes works. Make sure it's eDP on DP_D because of the Nvidia VBIOSes. Peladn don't sell anymore I believe. Link to comment Share on other sites More sharing options...
JadeRover Posted Friday at 08:58 AM Share Posted Friday at 08:58 AM It has been discussed a few times, but be careful, Zbook 15 g2 routes it's internal eDP connector to DP_C of the MXM slot, you actually need to make sure your card outputs standard DP to DP_C so that the mod can work. I had a gtx 1060M on my zbook 17 g3 that only outputed HDMi on DP_C so it didn't work, even when trying a crap ton of different vbioses. Precision M6700 : i7-3740QM, M3000M, 20gb DDR3, FHD ips dreamcolor, delta fans Zbook 17 g3 : i7-6820HQ, GTX 1060 (Zotac zbox card), 8gb DDR4 (for now), FHD ips Link to comment Share on other sites More sharing options...
SuperMG Posted Friday at 11:16 AM Author Share Posted Friday at 11:16 AM 2 hours ago, JadeRover said: It has been discussed a few times, but be careful, Zbook 15 g2 routes it's internal eDP connector to DP_C of the MXM slot, you actually need to make sure your card outputs standard DP to DP_C so that the mod can work. I had a gtx 1060M on my zbook 17 g3 that only outputed HDMi on DP_C so it didn't work, even when trying a crap ton of different vbioses. None of the ZRT and X-VSION specs can do that. They all do HDMI on DP_C and it's not dual-linked I suppose. The 4050-4070 have DP only for A and B. D is eDP and C is HDMI. That's why we need to find who makes the VBIOSes, so they can edit these 4050-4070 VBIOSes to have DP/DP/DP/DP or DP/DP/eDP/DP Link to comment Share on other sites More sharing options...
Derpmaster69 Posted Friday at 01:24 PM Share Posted Friday at 01:24 PM so in theory, Zbook 15 g2 and RTX 4060 won't work unless the vbios is modified for DP_C right? So I could only get a display if I connect the laptop to an external display via DP (it is 1.2 so I am limited to Ampere right?)? But then is the backlight mod still necessary? Thanks for the reply. But, all MXM cards work on the slave slot of SLI laptops (without whitelist) regardless of LVDS/eDP right? Link to comment Share on other sites More sharing options...
SuperMG Posted Friday at 02:59 PM Author Share Posted Friday at 02:59 PM 1 hour ago, Derpmaster69 said: so in theory, Zbook 15 g2 and RTX 4060 won't work unless the vbios is modified for DP_C right? So I could only get a display if I connect the laptop to an external display via DP (it is 1.2 so I am limited to Ampere right?)? But then is the backlight mod still necessary? Thanks for the reply. But, all MXM cards work on the slave slot of SLI laptops (without whitelist) regardless of LVDS/eDP right? Yes it needs a new vBIOS but I have no idea who makes such things... No it can't work in only external mode because the drivers will throw you an error 43 since the eDP is present but the backlighting isn't detected by the system. This issue doesn't happen with X-Vsion Ampère cards because they have simple DP on DP_D and not eDP. Yes can work in SG but you'll lose performance due to the iGPU. The newer RTX cards need the flex cable mod for the backlighting. Link to comment Share on other sites More sharing options...
Derpmaster69 Posted Friday at 03:04 PM Share Posted Friday at 03:04 PM 2 minutes ago, SuperMG said: No it can't work in only external mode because the drivers will throw you an error 43 since the eDP is present but the backlighting isn't detected by the system. This issue doesn't happen with X-Vsion Ampère cards because they have simple DP on DP_D and not eDP. Even if I remove the display ribbon and connect the external display to DP or HDMI or TB2(mDP)? If it would work the backlight flex cable mod is still necessary right? Link to comment Share on other sites More sharing options...
SuperMG Posted Friday at 03:08 PM Author Share Posted Friday at 03:08 PM 3 minutes ago, Derpmaster69 said: Even if I remove the display ribbon and connect the external display to DP or HDMI or TB2(mDP)? If it would work the backlight flex cable mod is still necessary right? The backlighting is necessary for the internal eDP display, otherwise it'll stay black. Link to comment Share on other sites More sharing options...
Derpmaster69 Posted Friday at 03:09 PM Share Posted Friday at 03:09 PM 5 minutes ago, Derpmaster69 said: Even if I remove the display ribbon and connect the external display to DP or HDMI or TB2(mDP)? So, the real question is that would the cards work over HDMI/TB2 if the internal display is completely removed? EDIT: or even DP Link to comment Share on other sites More sharing options...
SuperMG Posted Friday at 05:13 PM Author Share Posted Friday at 05:13 PM 2 hours ago, Derpmaster69 said: So, the real question is that would the cards work over HDMI/TB2 if the internal display is completely removed? EDIT: or even DP I didn't try that but I think yes, but your eDP screen will become useless... So it's not technically a laptop now 😕 Link to comment Share on other sites More sharing options...
Derpmaster69 Posted Friday at 05:57 PM Share Posted Friday at 05:57 PM 28 minutes ago, SuperMG said: I didn't try that but I think yes, but your eDP screen will become useless... So it's not technically a laptop now 😕 So, there is hope😁 well what I was going for is to mod the laptop by fitting an external 15 inch monitor (or even the same inbuilt monitor) to a controller board which can be powered by usb (probably I must allow some space for the controller board) and then connect the display via HDMI/DP/mDP. So this might work right (without backlight mod)? Link to comment Share on other sites More sharing options...
SuperMG Posted Friday at 06:20 PM Author Share Posted Friday at 06:20 PM 17 hours ago, Derpmaster69 said: So, there is hope😁 well what I was going for is to mod the laptop by fitting an external 15 inch monitor (or even the same inbuilt monitor) to a controller board which can be powered by usb (probably I must allow some space for the controller board) and then connect the display via HDMI/DP/mDP. So this might work right (without backlight mod)? You still need backlight mod on the GPU-end or on the screen's LCD cable-end because these GPUs don't support backlighting. Link to comment Share on other sites More sharing options...
a-bracci00 Posted Saturday at 11:41 AM Share Posted Saturday at 11:41 AM Does the pin mod to use an mxm 4xxx also work on a 2021 x170km (I9 11000k 3080)? Is it plug and play or do you need a modified BIOS (dsanke)? I'm following the discussion, after successfully connecting the backlight, what's missing to make it work properly? The help of a certain developer79 would really be needed. Link to comment Share on other sites More sharing options...
SuperMG Posted Saturday at 01:05 PM Author Share Posted Saturday at 01:05 PM 1 hour ago, a-bracci00 said: Does the pin mod to use an mxm 4xxx also work on a 2021 x170km (I9 11000k 3080)? Is it plug and play or do you need a modified BIOS (dsanke)? I'm following the discussion, after successfully connecting the backlight, what's missing to make it work properly? The help of a certain developer79 would really be needed. You have the flex cable? How did you get the cable? Yes I got the P775TM1G and P870TM to work with RTX 4080 MXM with backlight mod, with stock bios and Dsanke bios. Link to comment Share on other sites More sharing options...
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