RTX 3080 in M18xR2? Should I do it? lol

[janepa]

Okay, here are the pictures.  This applies to both the Alienware M18XR1 and M18XR2 models.

[ssj92]

On 10/11/2025 at 4:57 AM, janepa said:

Okay, here are the pictures.  This applies to both the Alienware M18XR1 and M18XR2 models.

If I understand correctly, solder a wire from pin 27 to bottom part of resistor?

 

This works for both mxm slots or only slot 1?

[janepa]

22 hours ago, ssj92 said:

If I understand correctly, solder a wire from pin 27 to bottom part of resistor?

 

This works for both mxm slots or only slot 1?

Hi

No, as I already wrote, all what is need to do is replace the resistor with a smaller value of 100Ω (marked 101 or 01A) or 150Ω (marked 151 or 18A) size 0201 or 0402 (as shown in the picture). Alternatively, it can create a solder blob on the original resistor, or apply some kind of silver-based conductive paste on the original resistor for a non-soldering method or something similar. The reason why I marked pin 27 and the green line and 3.3v power supply in the picture is only for informational purposes and to check how it is connected, because the principle will be very similar on other devices. 

 

Both mxm slots (pins 27) are connected together on the motherboard, so nothing else needs to be done.

 

[ssj92]

1 hour ago, janepa said:

Hi

No, as I already wrote, all what is need to do is replace the resistor with a smaller value of 100Ω (marked 101 or 01A) or 150Ω (marked 151 or 18A) size 0201 or 0402 (as shown in the picture). Alternatively, it can create a solder blob on the original resistor, or apply some kind of silver-based conductive paste on the original resistor for a non-soldering method or something similar. The reason why I marked pin 27 and the green line and 3.3v power supply in the picture is only for informational purposes and to check how it is connected, because the principle will be very similar on other devices. 

 

Both mxm slots (pins 27) are connected together on the motherboard, so nothing else needs to be done.

 

Okay so I can bridge the two points on resistor as well?

 

Do you know where it may be located on AW 18 R1 (M18xR3)? That system has the issue with throttle. For M18xR2 it has been good. M18xR1 only has throttle when doing dual PEG method. 

[janepa]

1 hour ago, ssj92 said:

Okay so I can bridge the two points on resistor as well?

 

Do you know where it may be located on AW 18 R1 (M18xR3)? That system has the issue with throttle. For M18xR2 it has been good. M18xR1 only has throttle when doing dual PEG method. 

Yes, you can.

 

It would be very helpful if you could provide a high-resolution photo of both sides of the motherboard. I think I could find it then. The resistor will be somewhere near the Logic Gates chip marked as UV4 on the motherboard. 

[SuperMG]

48 minutes ago, ssj92 said:

Okay so I can bridge the two points on resistor as well?

 

Do you know where it may be located on AW 18 R1 (M18xR3)? That system has the issue with throttle. For M18xR2 it has been good. M18xR1 only has throttle when doing dual PEG method. 

Hello that's interesting. Yes this could also fix the issue on the CLEVO X7200, dual PEG. We can finally use the slave GPUs at 100% of the power. So the best for this system would be a K3000M + Quadro RTX 5000. Also the X58 has more bandwidth than the M18XR1 intel Chipset.

 

I'll give later the x7200 slave MXM port picture if anyone is interested.