RTX 3080 in M18xR2? Should I do it? lol

[SuperMG]

On 8/13/2025 at 3:14 PM, janepa said:

Now it´s Clevo not ZBOOK G6/G5 ? Ok remember please i was write in my previous contribution (there are several pins call OEM ,RSVD and maybe more) is important this means not only the OEM pins in this case. You must be better attention of these diagrams.

This is one of many problems too on M18x by the way. Good luck to modify.

Hello. I looked at your post yesterday. I was curious why you did this. So I tried to discover.

 

I compared very carefully each pins one by one, between my MXM connector and the RTX 4060 pins from ZRT.

 

Here you can see that everything coloured is 100% compatible with my MXM connector.

 

The red crossed ones aren't compatible signals for my MXM connector.

 

JTAG is for testing, so I don't think that's important for eDP.

 

Although the pins 240 and 242 seem important because they are like the "footer pins" of the DP_D (eDP).

 

Are the two 3V3 pins that important?

 

If yes, that's why did you do the wiring to power some of the 3V3 "signals" back? On my MXM connector, the two pins are set in RSVD.

 

Can the manufacturer do some custom wiring for me? Like "cross-wiring" the pin 240, 242 to pins 278 and 280 for the 3V3 "signals"? Or get the 3V3 somewhere else on the board? 

 

If no, then nothing to worry about them?

 

Edited 16 hours ago by SuperMG

[Maro97]

Thanks 🙏 @SuperMG for your updates 

I will waiting your opinion for upgrading my p870 to ZRT 4090 . 

“As for whether it is compatible or not

[sliderfra]

15 hours ago, SuperMG said:

Hello. I looked at your post yesterday. I was curious why you did this. So I tried to discover.

 

I compared very carefully each pins one by one, between my MXM connector and the RTX 4060 pins from ZRT.

 

Here you can see that everything coloured is 100% compatible with my MXM connector.

 

The red crossed ones aren't compatible signals for my MXM connector.

 

JTAG is for testing, so I don't think that's important for eDP.

 

Although the pins 240 and 242 seem important because they are like the "footer pins" of the DP_D (eDP).

 

Are the two 3V3 pins that important?

 

If yes, that's why did you do the wiring to power some of the 3V3 "signals" back? On my MXM connector, the two pins are set in RSVD.

 

Can the manufacturer do some custom wiring for me? Like "cross-wiring" the pin 240, 242 to pins 278 and 280 for the 3V3 "signals"? Or get the 3V3 somewhere else on the board? 

 

If no, then nothing to worry about them?

 

 

It's genuine MXM so 3.3V is mandatory, but you have it on the last pins.

As you can see on adlink AD5000 mxm, many pins are N/A (non applicable so non wired).

There are 4 DP lines but absolutely NO edp wired.

Most probably your RTX4k series are non wired either.

Turing & Ampere mxm cards don't have EDP wired either... That's why standard MXM RTX 3000 has to use OPTIMUS, whereas HP RTX can bring signal to edp screen.

If you look at the Intel Xe mxm pinout, you may see LVDS crossed (so most probably N/A) and EDP_D pins.

EGX-MXM-ADA_Series_50M_7C008_1000_10.pdf