RTX 3080 in M18xR2? Should I do it? lol

[sliderfra]

On 6/19/2025 at 5:03 PM, Yarema said:

Wow Guys! 680$$ rtx 4080 from Xvsion!

Can it work in M18x R2? 

150W TDP btw

Frame Gen + 3940Xm overclocked should allow it to run wvery possible game @75hz full hd!

Hi,

ask @SuperMG3 

He bought the card and tried it already.

 

[janepa]

Yeah, i have one 4090 from x-vsion too. Have 175W TDP limit.

[Maro97]

How’s 3dmark performance ?

[ssj92]

11 hours ago, janepa said:

Yeah, i have one 4090 from x-vsion too. Have 175W TDP limit.

Please upload vBIOS for us as well in case we need to flash. Maybe in future I will get 4090. 
 

also any idea if it works in eDP mode for laptops like M17xR4?

[SuperMG3]

On 7/4/2025 at 7:16 AM, ssj92 said:

Please upload vBIOS for us as well in case we need to flash. Maybe in future I will get 4090. 
 

also any idea if it works in eDP mode for laptops like M17xR4?

No EDP compatibility on 4070,4080,4090.

[SuperMG3]

On 7/3/2025 at 7:34 PM, janepa said:

Yeah, i have one 4090 from x-vsion too. Have 175W TDP limit.

How do you get good temperatures with 175W of heat?? You should be at 95C with the 100-120W heatsink of the Alienware M18X!

[janepa]

On 7/4/2025 at 7:12 AM, Maro97 said:

How’s 3dmark performance ?

Sorry i don´t test it right now . There is a performance problem like a VRel. gpu voltage issue in 3D applications and other another problems as pcie lines speed as panda_zzz says in a couple months ago when testing 4060.

[janepa]

On 7/4/2025 at 7:16 AM, ssj92 said:

Please upload vBIOS for us as well in case we need to flash. Maybe in future I will get 4090. 
 

also any idea if it works in eDP mode for laptops like M17xR4?

Hi, i don´t know if eDP will works in M17xR4 sorry. I don't have anything similar to test.

There is it.

rtx 4090 ori.rar

[janepa]

6 hours ago, SuperMG3 said:

How do you get good temperatures with 175W of heat?? You should be at 95C with the 100-120W heatsink of the Alienware M18X!

Yeah, that's a right question. Fortunately i made water loop in my R2 because my ADLINK RTX5000 was generating some heat too much. But this gpu have even more high TDP  i had to install more powerful water pump and now i have vram temp. a problem too. In one minutes i have over 100C right now, but Hot spot is around 92C and Gpu temp 84C in full throttle and ambient room temperature is 25C.

[ssj92]

39 minutes ago, janepa said:

Hi, i don´t know if eDP will works in M17xR4 sorry. I don't have anything similar to test.

There is it.

rtx 4090 ori.rar 451.62 kB · 0 downloads

Do you know if the RTX 3080 heatsink fits it? Layout looks almost 99% same. 

[janepa]

5 minutes ago, ssj92 said:

Do you know if the RTX 3080 heatsink fits it? Layout looks almost 99% same. 

No dimensions is no problem ,yours heatsink will be fit on that gpu  . It fitting perfectly in mxm slot ,but there is problem with x-bracket because there are some components like small ceramics condensators in the line for the standard x-bracket. It´s 

[janepa]

11 minutes ago, janepa said:

I have made my own bracket on 3D printer. Not perfect ,but working.

 

 

 

[SuperMG3]

2 hours ago, janepa said:

Yeah, that's a right question. Fortunately i made water loop in my R2 because my ADLINK RTX5000 was generating some heat too much. But this gpu have even more high TDP  i had to install more powerful water pump and now i have vram temp. a problem too. In one minutes i have over 100C right now, but Hot spot is around 92C and Gpu temp 84C in full throttle and ambient room temperature is 25C.

Hello.

 

I wanted to modify my M18X R2 cooling capacity.

 

I'll use 2-3 extra heatpipes. Connect all from the GPU1 heatsink to the GPU2 heatsink (empty slot) and have like 175W of heatroom. Both heatsinks combine 200W but since it'll take some times to transfer the heat, I knocked out 25W.

[ssj92]

1 hour ago, janepa said:

 

Could you upload file for this x-bracket? It clears fine on back of m18x r2? doesn't stick out?

[Maro97]

On 7/7/2025 at 10:12 PM, SuperMG3 said:

Hello.

 

I wanted to modify my M18X R2 cooling capacity.

 

I'll use 2-3 extra heatpipes. Connect all from the GPU1 heatsink to the GPU2 heatsink (empty slot) and have like 175W of heatroom. Both heatsinks combine 200W but since it'll take some times to transfer the heat, I knocked out 25W.

I really like M18x r2 it has a best MXM slot ever made cuz it can handle 200w like a peace of cake . 

[janepa]

On 7/7/2025 at 9:12 PM, SuperMG3 said:

Hello.

 

I wanted to modify my M18X R2 cooling capacity.

 

I'll use 2-3 extra heatpipes. Connect all from the GPU1 heatsink to the GPU2 heatsink (empty slot) and have like 175W of heatroom. Both heatsinks combine 200W but since it'll take some times to transfer the heat, I knocked out 25W.

Hi

 

Yes, I had this idea a few years ago as well, but I had a problem around the hinges, there are not much of space at this area. Can you explain what your solution is?

[janepa]

On 7/7/2025 at 9:23 PM, ssj92 said:

Could you upload file for this x-bracket? It clears fine on back of m18x r2? doesn't stick out?

Hi

 

Yes, fits well on the bottom . No stick out issue, but it must use longer bolts and any kind of nuts.

 

x-bracket ver.1.stl

[SuperMG3]

11 minutes ago, janepa said:

Hi

 

Yes, fits well on the bottom . No stick out issue, but it must use longer bolts and any kind of nuts.

 

x-bracket ver.1.stl 170.79 kB · 0 downloads

I'll ask x-vision for a custom bracket. Surely they have one, how did they test the GPU then?

 

I want to pass all the heatpipes on the bottom of the CPU socket. (front view of the motherboard). Then Connect the heatpipes to the copper plate of the GPU2.

[janepa]

On 7/9/2025 at 4:51 AM, Maro97 said:

I really like M18x r2 it has a best MXM slot ever made cuz it can handle 200w like a peace of cake . 

Yes it´s true. It is strong and powerfull with minimum faults like some old car, but already it´s too old. But i am very happy for this piece of hardware.

[janepa]

20 minutes ago, SuperMG3 said:

I'll ask x-vision for a custom bracket. Surely they have one, how did they test the GPU then?

 

I want to pass all the heatpipes on the bottom of the CPU socket. (front view of the motherboard). Then Connect the heatpipes to the copper plate of the GPU2.

Or maybye use another gpu manufacturer like ZRT it seems that use a stanard bracket i think.

 

 

Yes, it´s only one possible option ,but assembling will be much difficult i think. Pay atention about diameter and lenght, less diameterr and longer pipe = less wattage transfer

[SuperMG3]

4 hours ago, janepa said:

Or maybye use another gpu manufacturer like ZRT it seems that use a stanard bracket i think.

 

 

Yes, it´s only one possible option ,but assembling will be much difficult i think. Pay atention about diameter and lenght, less diameterr and longer pipe = less wattage transfer

I already bought from them a 4090 115W. Thanks for mentioning the X-BRACKET layout. I told them to give me the right one!

[SuperMG3]

14 hours ago, janepa said:

Hi

 

Yes, fits well on the bottom . No stick out issue, but it must use longer bolts and any kind of nuts.

 

x-bracket ver.1.stl 170.79 kB · 1 download

Actually you have the first commercial version. I'll get the newest one without the x-bracket issue. Look at their new pictures now 

[janepa]

On 7/4/2025 at 7:16 AM, ssj92 said:

 

also any idea if it works in eDP mode for laptops like M17xR4?

I found actually some informations about edp output on  4090/4080 . If ianybody interesting about it.

Maybe it could be help.

MM4090B6-16G.pdf

[janepa]

11 hours ago, SuperMG3 said:

I already bought from them a 4090 115W. Thanks for mentioning the X-BRACKET layout. I told them to give me the right one!

Please keep in mind, that mechanic and termal fit maybe it be only a first step to sucefully run 4090 on R2 and then there is a performance issue actually as i said.

[SuperMG3]

30 minutes ago, janepa said:

Please keep in mind, that mechanic and termal fit maybe it be only a first step to sucefully run 4090 on R2 and then there is a performance issue actually as i said.

I'll not run it on Alienware. It'll go on Clevo p570, had no issues with 4080 115W power limited thru Nvidia inspector.

 

The 4090 I got is a 115W one and doesn't have any capacitors lying around the x-bracket's zone. 

 

The 4070 I have, doesn't have eDP. It doesn't work on M17X R4 and Clevo P570wm eDP displays. 4080/4090 have the connector present on the Nvidia control panel but they don't have eDP.