SuperMG

But did they find a way to edit Ada Lovelace VBIOS display tables? And apply the right checksum? If you could contact one of them and compare both 4070 MXM VBIOS and 4080M VBIOS for example, it would be good for us!

Hello. Above Pascal, no editors work, need a signed vbios or it won't work too... Only hope is to find someone WHO HAS BOUGHT the ZRT 4080 and 4090, but who? Xvsion doesn't really care and that's very concerning, they do a bad job for their "customer care service" or whatever it's called...

After trying to get an answer from Xvsion, here's their answer: "Hello, 4080M and 4090M. eDP enabled and VBIOS It is fixed and cannot be changed." "sir， I consulted my engineer, and it's impossible to do that—it would completely destroy the GPU's PCB. You're talking about a fairy tale, something that's impossible. Are you kidding" Do they know what they are saying? My answer: Did I mention to remake the PCB? Are you kidding me? vBios is a file, just edit the file that's inside the sop8 chip and enable the eDP like on the 4050/4060/4070 vBios. vBios STORES THE DISPLAY DATA!! DP_A = DP DP_B = DP DP_C = HDMI DP_D = eDP enabled The person who said to edit the PCB doesn't even know what a vBios is or maybe you made a miscommunication with them, who knows. vBios edit = file of 2MB containing display outputs data and GPU's information." ... I told them exactly the issues with days of testing and this is how they "fix" the issue, by saying lies. I'm giving up man, no one cares... Edit: "sir， Cannot change or modify. Thank you for your understanding." ??? Makes no sense, it's a vBios file that can be edited with the right tools.

Hello. I'm the person who made the Turing to Ada MXM cards to work on eDP with a solder-less eDP backlight flex cable mod. I need your help everyone. The XVSION 4080M and 4090M have eDP disabled on the VBIOS. Which means, once the drivers are installed, we are greeted with a blackscreen, no signal. The drivers uninstall the PnP drivers and installs a non-PnP one, resulting to an error 43 and a blackscreen, making the GPU not to work natively. However, this doesn't happen with the X-VSION 4050M, 4060M, 4070M because they have eDP enabled on the VBIOS and once the drivers are installed, it works natively. Only way to make the 4080M and 4090M to work is to trick the OS and install the laptop's display EDID data after the drivers are initialised from the startup. It's not a native way and requires extra steps. But... We are also losing DP_A, so the external DP is useless. Only DP_C (HDMI) works for external display. The 4070M, all the external output of DP_A, DP_B, DP_C are working great. What we want: Enable back the eDP on DP_D for the 4080M and 4090M. Change the display orders to DP/DP/HDMI/eDP (like on the 4050M to 4070M) I tried to contact Nvidia support for help, but they don't make "VBIOSes". I then asked help from people who sell Frankenstein RTX 4080M/4090M GPUs (X-Vsion used these), I wanted to know who makes the VBIOS and where they source them from. They don't know either? I saw that ZRT have the perfect VBIOS configuration for the 4080M and 4090M but... They never replied to me about the VBIOS files. I even tried to buy a GPU from them but still nothing. It's silent. On ZRT's datasheet, I found the VBIOS version numbers from their GPU-Z screenshot but no vBios are available online. 4090M: 95.03.2A.00.1D 4080M: 95.04.3A.00.0E Xvsion doesn't help either. So that's why I'm asking for some help. If any of you know who can edit/make signed VBIOSes or if any of you have a ZRT MXM 4080M, 4090M, let me know. I can pay money for the VBIOSes and test them on the X-VSION 4080M/4090M cards. Thank you.

@Chalybion Hello. I got 208 FPS AVG on Furmark 1.37, max 61C!! So yes, everything is cool. CPU undervolt stays, getting good single-thread performance (from 380 to 430 CPU-Z) TimeSpy Normal: 12700 GPU score 3DMark Port Royale: 7260 GPU score Userbenchmark GPU test: 60% and 61.5% (+45MHz overclock) GPU max peak TDP was 118W! Max GPU temp ever recorded was 72C! Is it possible to upgrade the display? I need a new cable since it's 40 pin, what display should I use?

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!

https://drive.google.com/file/d/1l13P6GNHi3hWIna5HTG3mWBfl_ebePoW/view?usp=drivesdk https://drive.google.com/file/d/11J6h_73VVxpgkYjJSPEq__wUkjG0siZy/view?usp=drivesdk Also is it normal, when I restart I can no longer undervolt? Also when I downgrade the BIOS, when I restart again, another bios update is happening?! Fix: Enable UEFI Capsule Firmware Updates = OFF in the BIOS.

Hello. Managed to get 415 in single-thread and 2222 in multi-thread in CPU-Z on the i7 7820HQ with -100mV, max temp 70c no fans kicking on Edit: was able to pull 433 in single-thread and 2260 in multi-thread using -100mV and 3.9GHz all cores.

Finally the RTX 4070 works fine without any temp issues. Same for the CPU. No more craziness overheating from 40c to 99c. Max temp was 72c and not 100c! Here's a picture on where to cut in order to make your XVSION and ZRT RTX 4050/4060/4070 to work in your Dell Precision 7710 and 7720. I'm thanking X-VSION and ZRT for making such incompatible GPUs in terms of heatsinks! We need to either Dremel for hours or just add a copper plate of 1mm with thermal glue (only for separate heatsinks) DP, HDMI and eDP (using my flex FPC custom cable) are working in PEG mode. USB-C display is not working? (Lacking drivers maybe?) By the way, I did downgrade the BIOS but I still can't manage to undervolt, do I need to edit the UEFI variables using grub?

Hello. Same height. No difference

Thanks a lot for telling me how to undervolting. I tried without GPU, without copper plate. Only CPU. Managed to get the "famous" 40c to 99c. Screws 3 and 2 at max torque. Screws 1 and 4 at 70%. Even without a copper plate and a x-bracket with the RTX 4070, I managed to get the 40c to 99c on the CPU. I need to cut some aluminium on the heatsink where the R22 inductor is touching. Because this component is taller than the GPU's die and can mess both CPU and GPU temps (because die doesn't touch)

I still get the same issue with the copper plate installed. I installed it correctly before it wasn't installed correctly. I had to cut the plate so it can fit flat. VRAM pads are ok now. Still peaks at 99c when being at 35W I touch the CPU side, it's not even hot, the vents have cold air. The GPU temps don't even go at 99c. Max is like 80c but when at 115W 100%. The GPU temps are like 27-30c idle. No weird spikes on the GPU side. When I insert an USB key, CPU spikes at 99c... I'll try 0.8mm thick and 1mm thick copper plates in 2 weeks. 1.2mm is probably too much. Because I have the NV-A heatsink and it doesn't even touch the "tall" R22 inductor, like there's a 0.2-0.3mm gap "visually". On the NV-B heatsink (old 7720), 0mm gap. Need to cut impossible corner. I want to try undervolting at -100mV but it's locked of course and I have the latest bios. FurMark 1.37: RTX 4070 MXM, 116W max, 79C max, 205 fps AVG 1080p

I removed the copper plate and used the previous Dell Precision 7720 where the Quadro P3000 and 4070 with the custom heatsink had weird CPU temp spikes issues. I removed the copper and added the M1200 because the P3000 was somewhere else. And now the CPU doesn't act up! It's not doing 40c to 99c. Or doing 99c at 35W! I'll test further more. Edit: no problems with unmodified heatsink (removed copper plate) on both Dell Precisions with P3000 and M1200.

I don't know, the CPU doesn't seem hot. I feel the wind on my hand, it's cold. If it doesn't do good contact, how is it possible for the CPU to cool down? Visually with the other heatsink with the copper plate, I see that they're aligned good, like on line between the CPU and GPU parts. Like there's some sort of an elevation gap Let me remove the copper plate on the other heatsink and test it with P3000

Yes it does show contact. My modification is just to add one piece of 4cmx4cmx1.2mm copper plate on the GPU's section. I did the same modification on the newer heatsink, same issue I think? There's good amount of pressure on the CPU, I can't do that far. This happens on two different 7720 laptops. 6920HQ and 7820HQ