Bought RTX 3080 Laptop GPU for my P775TM1-G.

[1610ftw]

3 hours ago, Meaker said:

https://www.3dmark.com/fs/26832002

 

Here you go for performance with it cranked, thanks for the welcome.

 

Yeah I paid over 600 in import vat on the original laptop to the UK. But since it was a business expense I can't complain too much as I saved income tax and national insurance on it.

 

Thanks, looks like a nice increase compared to what I take it you had with your 1080!

Have you tested with and without water cooling to see what kind of difference it makes?

[solidus1983]

On 7/22/2022 at 8:24 PM, Tenoroon said:

This is an Ampere MXM card:
(I think its a 3070, but the layout will be the exact same for your 3080.)



The vBIOS chip should be the one circled in that picture. And yes, a CH341A will work with the chip if you need to flash a different one. It may take a few tries to get a good reading though.

 

 

Just remember to use a 1.8v Adaptor on that CH341A as the EPROM is more then likely a MX MX25U1635F which is a 1.6-2.0v chip. It will also protect you if you have a Faulty CH341A which puts 5v down the 3.3v line!!

[srs2236]

On 7/25/2022 at 4:09 PM, solidus1983 said:

 

 

Just remember to use a 1.8v Adaptor on that CH341A as the EPROM is more then likely a MX MX25U1635F which is a 1.6-2.0v chip. It will also protect you if you have a Faulty CH341A which puts 5v down the 3.3v line!!

Thanks! That is really golden advice for me as I had no idea about this especially after hearing that CH431A is good for VBIOS flashing.

 

Will definately make sure to get myself this adaptor at some point just in case I ever need to flash some low voltage chips.

 

And a little update on my GPU:

The MXM card itself should have been with me tomorrow but I had to reschedule as I'm working next three days. So GPU will be with me 1st of August.

 

Problem is, heatsink will only be with me 10th of August and that is if AliExpress delivery estimate is not lying to me again...

 

I hope I will be patient and wait for the heatsink to arrive and only then change it. But to be honest, seeing @Meakerith a 3070 in his P870TM1, which is a machine from same time as P775TM1 makes me hopeful that it will work. So for now I'm chilling.

 

Thanks for all the replies btw! Really apprieciate it.

[Reciever]

Would love to see how this goes. My Frankentop could use a 3080 at some point here :)  

[Meaker]

11 hours ago, srs2236 said:

Thanks! That is really golden advice for me as I had no idea about this especially after hearing that CH431A is good for VBIOS flashing.

 

Will definately make sure to get myself this adaptor at some point just in case I ever need to flash some low voltage chips.

 

And a little update on my GPU:

The MXM card itself should have been with me tomorrow but I had to reschedule as I'm working next three days. So GPU will be with me 1st of August.

 

Problem is, heatsink will only be with me 10th of August and that is if AliExpress delivery estimate is not lying to me again...

 

I hope I will be patient and wait for the heatsink to arrive and only then change it. But to be honest, seeing @Meakerith a 3070 in his P870TM1, which is a machine from same time as P775TM1 makes me hopeful that it will work. So for now I'm chilling.

 

Thanks for all the replies btw! Really apprieciate it.

Make sure you are on a custom or the latest BIOS for the machine. The other TM machines got official support so it will help with driver installs too.

[the jg89]

Wait, you mean it's possible to put an rtx 3080 mxm in a p775 tm1g?

Would be nice to replace my rtx 2080 mobile in the future for one of these but I donno ^_^'

I mean is the heatsink for my rtx 2080 compatible with it?

[runix18]

17 hours ago, the jg89 said:

Wait, you mean it's possible to put an rtx 3080 mxm in a p775 tm1g?

Would be nice to replace my rtx 2080 mobile in the future for one of these but I donno ^_^'

I mean is the heatsink for my rtx 2080 compatible with it?

1. Yes you can, even the old DM clevos can take it with the right mods.

2. The heatsink is not compatible, you will have to source one from Aliexpress. (or make one😉) 

[the jg89]

2 hours ago, runix18 said:

1. Yes you can, even the old DM clevos can take it with the right mods.

2. The heatsink is not compatible, you will have to source one from Aliexpress. (or make one😉) 

oh really? I assumed that since the voltage on the thing is the same if not lower than the rtx 2080 mobile, it would be fine since it wouldn't generate as much heat.

Would be nice to to have a site that sells gpu, heatsinks and whatnot for gaming laptops rather than scan for them on aliexpress.

[runix18]

5 hours ago, the jg89 said:

oh really? I assumed that since the voltage on the thing is the same if not lower than the rtx 2080 mobile, it would be fine since it wouldn't generate as much heat.

Would be nice to to have a site that sells gpu, heatsinks and whatnot for gaming laptops rather than scan for them on aliexpress.

Does not worth it anymore because it is a dying market.

Everyone goes for the thin and light crapola that we are used to.

 

For your laptop this is what you need. select GTX1080 RTX2080 RTX3080 air heatsink. 

 

At least you have an option. If I were to go for a 3080 I have to make my own heatsink because nobody provided a solution for the original DM p870.

[the jg89]

19 hours ago, runix18 said:

Does not worth it anymore because it is a dying market.

Everyone goes for the thin and light crapola that we are used to.

 

For your laptop this is what you need. select GTX1080 RTX2080 RTX3080 air heatsink. 

 

At least you have an option. If I were to go for a 3080 I have to make my own heatsink because nobody provided a solution for the original DM p870.

Oh I see 😞

I hope you manage to succeed with it.

Just wondering though how good is this heatsink compared to the one that comes with the rtx 2080 mxm? does it stay cooler?

it's hard to gauge the thermal pad layout on this thing ^_^' .

and would Dsanke's bios (1.07.29) be compatible with the mxm?

 

[runix18]

13 minutes ago, the jg89 said:

Oh I see 😞

I hope you manage to succeed with it.

Just wondering though how good is this heatsink compared to the one that comes with the rtx 2080 mxm? does it stay cooler?

it's hard to gauge the thermal pad layout on this thing ^_^' .

and would Dsanke's bios (1.07.29) be compatible with the mxm?

 

The heatsink is made of copper (or should be at that price) so technically it cannot perform worst that the stock one.

The pads should stay the same (as for compatibility reasons, or so I hope).

Latest version of stock and or dsanke is recommended. Even so you will have to resort to inf mod for instaling drivers.

[jaybee83]

6 hours ago, the jg89 said:

Oh I see 😞

I hope you manage to succeed with it.

Just wondering though how good is this heatsink compared to the one that comes with the rtx 2080 mxm? does it stay cooler?

it's hard to gauge the thermal pad layout on this thing ^_^' .

and would Dsanke's bios (1.07.29) be compatible with the mxm?

 

for thermal pad layout, i would suggest taking out the gpu module completely, as well as the heatsink. then make a "best guess" first by laying out thermal pads on all the critical components (vRAM, chokes, mosfets, etc.) and putting on the heatsink while still outside the laptop. then, looking from the side against a light source, ull see if the thermal pads make proper contact with the heatsink or if there is light shining through (thermal pads too thin) or if the heatsink sits a bit slanted on the gpu (pads too thick).

after taking the heatsink off ull also be able to judge the fit by the indentation of the components left on the pads.

 

i know it sounds a bit finicky, but that is basically how i always check the layout the repadding a machine im not familiar with.

[razor0601]

7 hours ago, the jg89 said:

Oh I see 😞

I hope you manage to succeed with it.

Just wondering though how good is this heatsink compared to the one that comes with the rtx 2080 mxm? does it stay cooler?

it's hard to gauge the thermal pad layout on this thing ^_^' .

and would Dsanke's bios (1.07.29) be compatible with the mxm?

 

Here‘s the difference between RTX 2080(P751TM1-G) and RTX 3080(X170KM-G).

 

 

[jaybee83]

3 hours ago, razor0601 said:

Here‘s the difference between RTX 2080(P751TM1-G) and RTX 3080(X170KM-G).

 

 

id rather compare the 2080S with the 3080 haha. but yeah, that +35% difference id only expect in synthetic benchmarks.

[srs2236]

It is confirmed to work in my P775TM1-G. After 2 hours or so of physical mods to the case to fit both the GPU and the new heatsink (both won't fit straight away), I am booted in Windows and currently downloading drivers.

 

BIOS shows Unknown GPU but shows the corresponding BIOS build and date.

 

Will probably have to do the Inf mod but I will see about that in a moment and will update you guys with pictures and the cuts you have to make in the plastic to make them both fit.

 

It's a little bit frustrating because the heatsink comes without instructions but there is one big cut you have to make and one more on the sliding shell to make it fit. And even then its a bit bent on CPU side that makes me a bit worried if its fitting freely. Hopefully thats just human error from assembly in China. But the case is back on and temps are fine so should be fine... But after this I will have to figure out the thermal pad thickness which will be a nightmare...

 

Also, I want to let you guys know that I will be selling my old RTX 2080 for probably around 400£ if anyone is interested please let me know I am open to reasonable offers aswell, but more on that later aswell.

 

Time for me to test it more 😃

[jaybee83]

5 minutes ago, srs2236 said:

It is confirmed to work in my P775TM1-G. After 2 hours or so of physical mods to the case to fit both the GPU and the new heatsink (both won't fit straight away), I am booted in Windows and currently downloading drivers.

 

BIOS shows Unknown GPU but shows the corresponding BIOS build and date.

 

Will probably have to do the Inf mod but I will see about that in a moment and will update you guys with pictures and the cuts you have to make in the plastic to make them both fit.

 

It's a little bit frustrating because the heatsink comes without instructions but there is one big cut you have to make and one more on the sliding shell to make it fit. And even then its a bit bent on CPU side that makes me a bit worried if its fitting freely. Hopefully thats just human error from assembly in China. But the case is back on and temps are fine so should be fine... But after this I will have to figure out the thermal pad thickness which will be a nightmare...

 

Also, I want to let you guys know that I will be selling my old RTX 2080 for probably around 400£ if anyone is interested please let me know I am open to reasonable offers aswell, but more on that later aswell.

 

Time for me to test it more 😃

thats awesome man! super good news, very happy it worked out like it did 🙂 inf mod is no biggie, and the unknown gpu in bios is also nothing to worry about, can just ignore. thermal pad thickness is no magic, just needs a bit of patience and trial & error, u got the most difficult part behind u man, trust me!

 

as for selling off ur old gpu, open up a for sale thread in the marketplace section here in the forum 🙂 just be sure to read all the rules first.

 

keep us updated here! we want clocks, voltages, wattage, temps, pictures of board, heatsink, machine, we want benches, everything! 😄 

[srs2236]

Yes, once I have fixed all the thermal pad issues and will be happy with the heatsink I will do some proper testing.

 

I have installed drivers using inf mod and all is well so far. There is a driver issue (Code 31) for "NVIDIA Platform Controllers and Framework" which seems to be related to Dynamic Boost 2.0. Indeed, after checking NVIDIA Control Panel Dynamic Boost is not supported. I guess that means that I will not be able to take advantage of the extra 15W and will only be able to run the card 150W max. Not too worried about this.

 

It seems that I have also lost G-Sync support for my internal laptop display. To me this is not an issue. Now I will test all the display outputs and more importantly if G-Sync will work over DP port as that is very important to me.

 

Will update again at some point.

[Reciever]

Would definitely love a formal write-up!

 

Thanks for sharing your success thus far 🙂 

[the jg89]

8 hours ago, srs2236 said:

It is confirmed to work in my P775TM1-G. After 2 hours or so of physical mods to the case to fit both the GPU and the new heatsink (both won't fit straight away), I am booted in Windows and currently downloading drivers.

 

BIOS shows Unknown GPU but shows the corresponding BIOS build and date.

 

Will probably have to do the Inf mod but I will see about that in a moment and will update you guys with pictures and the cuts you have to make in the plastic to make them both fit.

 

It's a little bit frustrating because the heatsink comes without instructions but there is one big cut you have to make and one more on the sliding shell to make it fit. And even then its a bit bent on CPU side that makes me a bit worried if its fitting freely. Hopefully thats just human error from assembly in China. But the case is back on and temps are fine so should be fine... But after this I will have to figure out the thermal pad thickness which will be a nightmare...

 

Also, I want to let you guys know that I will be selling my old RTX 2080 for probably around 400£ if anyone is interested please let me know I am open to reasonable offers aswell, but more on that later aswell.

 

Time for me to test it more 😃

Awesome 😄

Didn't think that was possible but congrats

 

About the heatsink though, was it a watercooled one by any chance?

also would it be possible to show us a pic on the thermal pad placement on the heatsink?

[srs2236]

8 hours ago, the jg89 said:

Awesome 😄

Didn't think that was possible but congrats

 

About the heatsink though, was it a watercooled one by any chance?

also would it be possible to show us a pic on the thermal pad placement on the heatsink?

Hi! At the moment I'm waiting for some Kryonaut to arrive at my place. Should be here tomorrow.

 

I can post pictures no problem. After I'm completely done with it I will try to post some pictures of the most important things I found out that could help someone else.

 

Regarding to thermal pads. To be fair, I think almost all of them are same, except maybe VRAM. I will recheck this and then will post an update. Anyways, I will use a mixture of things - thermal paste, thermal putty and copper shims to put it all together.

 

The Heatsink I ordered was a non watercooled one. I took some weight measurements and the stock heatsink is 500grams of copper+some other material and the new AliExpress one is 800grams all copper.

 

Because the RTX 3080 has a smaller die and I have more copper mass now I am expecting better cooling once all is set and done.

 

Also I tried overclocking the card and I was so suprised by how well the VRAM overclocks. My RTX 2080 would artifact even with the slightest VRAM overclock so I wasn't expecting much. But I was blown away - this card can do 2032MHz on Memory and that wasn't even the limit, I just didn't bother to go even more because I think this is already overkill for the card. That allowed me to achieve 520GB/s bandwidth. I saw someone else achieve 2063MHz on an MSI 3080 so thought that I will be good with my result.

 

As for core overclocking, well I already going in to it knew that my 2080 will be hard to beat (had absolute doggo VRAM, but core did +150MHz!), but I was satisfied to see it can do 115MHz+ on Core.

 

This gave me a score of 12943 in time spy for graphics. Previously my best was 10300 something with 2080. This is not a final score though as I hadn't put thermal pads on CPU VRMS so i had massively throttled the CPU so that they dont overheat. The score might or may not change after the cooling is properly sorted.

 

What else, well I checked the baseline numbers for 3080 in timespy and somebody had gotten more than 13000 on timespy but I guess thats because they have the +15W dynamic boost advantage that unfortunately does not work in my computer. I'm limited to 150w. For now...🤪 I will be looking in to a shunt mod for this card to try and run it closer to 200W.

 

I will definately post pictures and other stuff I just need a bit more time and I have been feeling off lately so yeah.

 

And all the display outputs work just fine, G-Sync is working over DP. The only thing that was broken was G-Sync support for internal display. Not sure at the moment if there is something I can do about it.

[srs2236]

Forgot to mention, but I noticed that Resizable BAR is enabled. Not sure if that is true or not but NVIDIA Control Panel says the same. Also changed the name to RTX 3080 only in the inf file while at it. I like to dream and fool myself that it is an actual GA102 die and not the 3070's GA104 die xD

[joluke]

Got a RTX 2070S from the K170KM running on my P775DM3-G from Eurocom too! Runs smooth 😋

[Taraquin]

Awesome project mate, glad it worked out 🙂 Tip for OC: Use curve editor in afterburner instead of +MHz for OC. On my 1070 I could bare use +50MHz before I got powerlimit at 115W. Using curve editor making curve flat from 850mv I got 1850MHz stable using 110-115W som slightly below powerlimit. Temps down by 5C vs stock, performance up by 3-5%.

[srs2236]

30 minutes ago, Taraquin said:

Awesome project mate, glad it worked out 🙂 Tip for OC: Use curve editor in afterburner instead of +MHz for OC. On my 1070 I could bare use +50MHz before I got powerlimit at 115W. Using curve editor making curve flat from 850mv I got 1850MHz stable using 110-115W som slightly below powerlimit. Temps down by 5C vs stock, performance up by 3-5%.

I am very confused how to use it properly. Last time I tried to use it I got worse performance than before.

 

Do you have a good tutorial that I could watch?

[Taraquin]

4 hours ago, srs2236 said:

I am very confused how to use it properly. Last time I tried to use it I got worse performance than before.

 

Do you have a good tutorial that I could watch?

 

Usually a flat line starting between 800 and 900mv somewhere at around 1800-1950MHz is best. 1800 is usually stable at 800mv or slightly above, 900mv may be able to run 1950MHz.  Find the highest stable. If you have room to spare powerwise try slightly over 900mv.0