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3080 MXM Shunt mod 180w limit


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I have successfully modified the shunt resistors on a clevo 3080 card out of an x170km, I installed 20mohm resistors on top of the existing 5mohm for somewhere in the neighbourhood of a 4mohm result (in theory a 20% increase in headroom"

 

due to lacking dynamic boost support in my p775dm3 I was stuck at the 150w limit, it should now be around 180w!

 

I am temperature limited now but will update with performance once my ptm7950 arrives!

 

3dmark timespy result: 13801 GPU score

https://www.3dmark.com/3dm/115871921

20240814_140216.jpg

My Clevo P775dm3
8700k @4.7
3080mxm (180w)
32gb cl18

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  • incendery changed the title to 3080 MXM Shunt mod 180w limit

impressive. great scores also.

 

I was wondering what your firestrike score was. do you game? if so do you game at 1080p>?  should be good for a few more years at 1080p/1440p

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12 hours ago, ryan said:

impressive. great scores also.

 

I was wondering what your firestrike score was. do you game? if so do you game at 1080p>?  should be good for a few more years at 1080p/1440p

Firetrike score was 35631 GPU after PTM installation, I'm able to hold around steady boost at 1890mhz under firestrike load while under 60c!
http://www.3dmark.com/3dm/115925832?key=akYYmlKjjF6uLFjhIQNyfA

 

I do a fair bit of gaming at 1080p on my desktop, I'm moving countries in the next month so this laptop will become my main machine very soon.
Should tide me over for a year or so until I rebuild a desktop :)

My Clevo P775dm3
8700k @4.7
3080mxm (180w)
32gb cl18

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The benchmarking is getting quite addictive now 😄

maximum GPU temperature of 72c even with the shunt mod and in theory near constant 170-180w power draw during the bench, I am interested in getting access to the i2c bus for the GPU to see what my real power draw is.

Not quite stable, getting some artifacting on the screen with this run so I will have to up the voltage a little bit, but valid score regardless.

 

Very impressed with PTM7950

 

image.png?ex=66bf151c&is=66bdc39c&hm=c9fc17698730d6a7155b22e7b2e082766a3e2772d9940a92dd95f3ed02b00abc&=

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My Clevo P775dm3
8700k @4.7
3080mxm (180w)
32gb cl18

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Posted (edited)

hmmm I need to redo my changes to boardID in the bios, inadvertently changed the subsystem ID for the audio device and now my headphones don't work 😂

 

shunt mod is still working very smoothly, I will push the memory a little now and see what scores I can hit

(update)

fixed! had one of the wrong values in the boardID file changed, it now works correctly and smoothly

Edited by incendery
update on previous info

My Clevo P775dm3
8700k @4.7
3080mxm (180w)
32gb cl18

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  • 3 weeks later...

There apparently exists an MXM version of the RTX 4060. Fast forward to about the 10:45 mark of this video to see it:

 

 

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On 9/11/2024 at 9:06 AM, saturnotaku said:

There apparently exists an MXM version of the RTX 4060. Fast forward to about the 10:45 mark of this video to see it:

 

 

 

I want that mxm lol, would make a nice upgrade for the Precision 7510/20 for example though probably too much for the M4800 unless someone makes a custom heatsink.

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On 9/4/2024 at 1:53 AM, incendery said:


MXM is quite dead in the consumer space unfortunately 😞 this is a card from the last true DTR clevo with socketed CPU and GPU (X170KM)

ssaaaaaayyyyy whaaaaaatt!? a socket laptop in 2020s?

 

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  • 4 weeks later...

180w on mxm card is crazy 😅 even 150w was high but 180w is extreme high 🙃 I know that your temps are low but this will damage your card ( maybe mosfets ) 🤔 I suggest not to go higher than 165W limit. This card is expensive, no point in killing it for few extra fps 😎

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  • 4 weeks later...

https://www.3dmark.com/spy/47636486

 

My max was 1900-1950Mhz before voltage was the main limiting factor, the GPU core was at 60-65C.

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Louqe Ghost S1 case (Top hat and bottom extension)

Nvidia RTX 4070 MSI twin fan

32" MSI 4k 160HZ IPS display

AMD Ryzen 7 7700 cooled via Thermalright 240mm AIO

48GB (2x24) DDR5 6000 CL36

Asus B650E-I motherboard

2TB T500 nvme SSD + 2TB SN770 nvme

500W Silverstone SFX-L PSU

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