Watercooled Legion Pro 7 13900hx Cinebench R23

[viscid sail]

i9 13900hx
Custom mode
-125 Core -115 P Cache -90 V Cache

[obsidian pecan]

You should definitely be able to score much higher, amazing setup and temps nevertheless

[coral horizon]

Oh wow! You just connected it to the bottom of che chassis? Did you do anything internal to connect it to the heat pipe?

I had no idea what you meant by watercooling until I look in the thread for pix.... awesome!!! Really awesome!

Do you mind sharing your extended settings in throttle stop? Like vcurve or igpu/agent/unslice voltage

[viscid sail]

i have not fumbled with the undervolt to get the best results. Although there is no temperature limit anymore, the highest i can do is not over 36k and it does not heat up past 80 degrees
There are some experts here who make the 13900hx run up to 37k 38k, really amazing

[viscid sail]

If you are interested, you can read my post on reddit here https://www.reddit.com/r/LenovoLegion/comments/1hg72hz/diy_plugin_watercooled_legion_pro_7/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

[viscid sail]

I just did a basic undervolt following the instructions on discord. Also to push the cpu to run to 200w I used water cooling solution + hybrid iGPU + custom mode. Some experts here can do it to get a higher score with lower tdp but I'm not good at tweaking throttlestop so I can't do it.

[jade swan]

maybe read the reddit post he linked that has all of that

[viscid sail]

all the information you need is in the reddit post that i linked above

[hollow oasis]

Hi, nice mod. Is the same mod possible with the amd version of that notebook?

[wicked raft]

Little late but this is insane

[viscid sail]

the amd and intel versions are identical so it's totally possible. In fact, if I had an amd version of a legion pro 7 right here, I could just remove my pre-customized bottom and install it in the amd version in just 5 minutes.

For other laptop models, you may need to modify the waterblock a bit, but if it is legion pro 7 2023, 2024, you just need to remove the bottom and install it.

[viscid sail]

Tks bro

[viscid sail]

Each laptop model will require a new/replaceable bottom plate.

[hollow oasis]

thanks for the info. ❤️

[crystal marsh]

@Tuin Thank you for this sick mod..

I got the freezemod https://freezemod.com/product/freezemod-industrial-water-cooler-module-3d-printing-medical-beauty-drone-dual-fan-slmz-v-t/ and switched the fans out for the noctua nf r8 redux 1800 super silent

i did 2 different backplates for testing . ill send pics of both .. i used your ekwb monarch and 2 gpu blocks hardmounted i got the lowest temps with the 2 separate 50mm blocks but the ekwb looks nicer.. shout out man.. now its finally a beast no drops temps during gaming are insane desktop level.

definitely want to mod my 4090 next.. with these temps totally doable.. im only using custom now 75 watt cpu - 175watt gpu and temps are in the 60s for both ..

@tuin sick mod

seriously this is the best mod you can do also remember a good lm paste job is also needed.. and switch out ptm and pads. full credit goes to @viscid sail ..

[obsidian pecan]

looking at hwinfo, ur LM application seems to be top notch

but why are you pulling max 213w and still scoring 35k

[viscid sail]

I use the SLMZ-S-L model. It's quite noisy, but I designed a soundproof box for it, it takes up a bit of space but the soundproofing effect is great, the total cost if you do it yourself is only 30-40$

This method takes up a bit of space but is highly effective, or you can try replacing the 2 fans of the freezemod radiator with 2 phantek T30 fans which are also quite effective but much more expensive, and this method will be a bit noisier than the soundproof box.

[viscid sail]

Congratulations brother, now you have one of the strongest and coolest laptops, just need to upgrade the acrylic plate on the EK ram block and everything will be neat and beautiful

@crystal marsh .

[viscid sail]

The LP7 Gen 10 will have a different design compared to Gen 8 and 9, so make sure to re-measure the distance between the bottom chassis and the heatsink. I couldn’t find any detailed specs on the Iceman X8 RAM block either, so I’m not sure how thick it is — but if it's around 4mm like standard RAM blocks, it might end up pressing against the bottom of the laptop. You’ll probably need to trim it down or go with a thinner option.

[crystal marsh]

Its my daily stable undervolt. With an agressive undervolt it reache 36000~. I am also hitting the VR Limit its not 213w its around 200w. Maybe with advanced bios id like to go higher. Do you know how?

[viscid sail]

@crystal marsh Bro, since you’ve already upgraded the cooling, can I suggest going for a Mini LED panel next? I upgraded my Legion Pro 7 with a Mini LED display and it seriously transformed the whole experience. It went from great to insanely good — powerful, cool, and now absolutely stunning to look at. Hands down feels like the best laptop in the world.

[crystal marsh]

@viscid sail Im thinking to try an oled .. im an oled guy i have the aw2725df 1440p 360hz and my daily aw3225qf 4k 240hz.. im going to start looking for one to test.

This laptop drives both nicely now

Power draw would be higher than the mini led.. i can imagine

Bro this was my first go.. ignore the mess .. first i tried to epoxy them lol.. then i used nuts .. the temps are about 8-10c less with this and it is low profile.. but sort of scrappy i guess

[crystal marsh]

A big reason for this project was so i could close the lid and not worry about the excessive temps.. now closed lid it tops at 41c and before it was almost 60c.. yes i do want your acrylic designs and the process.. but im happy with the ekwb how it is now..

[viscid sail]

I have a quick-disconnect like that — honestly, it doesn’t work well. The water flow is restricted, and after removing and reinstalling it several times, it started getting stuck and leaking quite a bit when disconnected. I’d recommend not removing it while the laptop is upside down — trust me on that.

If you’re looking for a reliable option, invest in a pair of Koolance QD3s. I’ve been using mine for 7 months now and they still work perfectly.

Also, you’ll want to modify the acrylic to a low-profile design. It helps reduce pressure on the pipes and keeps everything looking cleaner. Here’s the design file — you can take it to a CNC shop or find a skilled mechanic who can machine it for you

[crystal marsh]

Lol i just installed them from amazon.. the qd3 s have been out of stock for awhile.. but they havent leaked when connected.. i saw the spring and flow restriction but so far so good i wont be disconnecting them under pressure.. although i have the urge to.. 😆

[crystal marsh]

Do you think this is good.. alphacool.. in stock

https://www.dazmode.com/shop/watercooling/fittings/specialized-fittings/alphacool-es-quick-release-blh1a-pushin-set-it-it-2x-female-g1-4/

[viscid sail]

Only Koolance meets the requirements of durability, low leakage, and good waterflow. If you don't have koolance, at least use flathead qdc, it will be better.

and one more thing, if you are looking to buy qdc koolance, buy the chrome or silver version, don't buy the black plated version. the paint on the black plated version is pretty bad and can peel off and cause system residue

I haven't tried alphacool's qdc yet, but if it's not flathead, it usually leaks a lot when disassembled.

[crystal marsh]

About the cnc sketchup. I found a guy. What about the g4 holes how do i go about it. Should i redesign the sketch and i converted it to step . He wont take sketch files

Wow ur collection is top notch. These are so expensive..

[viscid sail]

Use g1/4 tap to create thread

I tried sending the .stp file through Discord, but it looks like the system doesn’t like that file format. I’ll send you a Google Drive link tomorrow. If you don’t want to wait, you can also try converting it to a STEP file format yourself

[crystal marsh]

Lol ..reminds me once i bought a 1080ti ekwb gpu block and overtightened and cracked the acrylic then had to wait 3 extra weeks for the replacement acrylic. 😆

[viscid sail]

The acrylic sheet in this design is 2cm thick, almost solid, even if you want to, it is very difficult to crack it.

[viscid sail]

@crystal marsh STEP file here, remove the p in the extension

[crystal marsh]

Thank you ill let you know how the block goes.. with the mini led panel are you hitting power limits.. does it consume more than the brick? Can we use higher watt bricks 400w or the 780w or is there a hard limit? Im curious if you know. I would love to not drain the battery and have consistent cpu clocks considering the headroom we have now.

[viscid sail]

no difference in power consumption

[crystal marsh]

I removed those disconnects .. horrible.. they restrict flow by 80%.. and add a second ekwb 120mm rad with fan.. wow so much to play with here.. temps dropped another 10c .. highs 50's to low 60s.. really impressive how much heat this pulls away..

He wants 275 cad for custom block is that normal pricing?

[viscid sail]

no, that price is too expensive

you can get pre cut acrylic sheet to size for a few $ then take it to a mechanic to punch screw holes and water lines with g1/4 taps, this way will be much cheaper, no need to cnc cut or 3d print like my design file.

[viscid sail]

Try measuring the distance from the shell to the vapor chamber in mm, then we will know if we need to thin the coldplate or not. If it is the same as legion 7 gen 8 and gen 9, the coldplate will need to be about 2 - 2.5mm thin.

[viscid sail]

ok if there is anything new please update here

[viscid sail]

yeah

or you can buy a ram barrow block but it's design is a bit weird to mount a custom acrylic plate

[viscid sail]

I've been busy these days. How's it going?

[viscid sail]

I prefer to design my own but thanks anyway

I'm still happy with my old waterblock so I don't want to upgrade yet. Wait to see how your results turn out and then decide if it's worth it.

[viscid sail]

16/10 or 13/10 is fine. Mine is 16/10 and you should buy silver, don't buy black, the paint will peel off easily.