Dell Precision M6600 Water Cooling - project

I'm close to finishing the metalwork stage of a fully internal wc mod for my P370EM. Making everything by hand from 6mm hvac copper pipe, flattening it to 3.5mm and replacing all the heatpipes and soldering double-45 degree U joins where tight turns are needed (like in the rads). I'm soldering it all to the original heatplates, so all the vrms will be watercooled too

Never could find blocks that would fit and didn't look sketchy, the P370EM cpu is a beeatch stacked setup where the fan sits on top, with like 5mm clearance between CPU and fan housing. GPU2 also only has about 7mm height to bottom cover.

I found a cheap dc 12v "ultra quiet <40dba" ~20mm high pump for testing that I should be able to fit in the optical bay.
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com.au/ulk/itm/273310251939
Finding one that was both slim and didn't have an output pointing the wrong way took a while. This one also looks like it'll be good for dc voltage based speed control (minimum 6V).
Haven't turned it on yet so don't yet know how much of a lie the noise or flow specs are ;p

I'll have to fab my own res/air trap with a fill/bleed port. I think I might be able to do something with a urine container or plastic test tube lying around I can make something from. Air is a pain in small pumps, I rigged up a portable external rad/res with a teeny Alphacool DC-LT and when it cavitates, boy is it noisy, sounds like a bandsaw that's sucked on some helium.

One other concern is the cheap vinyl tubing. Hopefully zip ties are enough to seal, but it also starts softening at 60C, and the 1070s and XM cpu can burn over 500W at peak...

 

I use same pump 12 and 6 volt. It is powered from USB and after that converted to 9.6 volt (max from USB it takes about 4,8 V and 0.8A). You dont need power it with 12V because the temperature of pump rise teperature of lope. Flow is geat and really quiet, almost no vibrations.

 

Here is new update. I create reservoir, but it has some leaks. Tomorrow I will create radiator with water block. Here some pics.

 

Wow! amazing!

 

Sorry guys I must complete my final thesis. But now I will add more of pictures and graphs with results.

In first place I simulated water blocks and radiators.

CPU water blocks

GPU water blocks


Radiators

 

For creating water blocks I choose aluminium old coolers from chipset motherboard
.

For radiators i use old aluminium CPU cooler


Here is picture beforee soldering


After soldering i had more leaks and I damaged CPU and GPU waterblock. So here is another solution. I use copper for cooling GPU (left side of picture)

 

Final result of worling water cooling laptop. It is look terible, but i need to complete this in time.


Testing leaks and temeratures before adding bottom case and palmrest.

 

On the biggest end the result. of temerature CPU. It was mesure with stress test OCCT. For water cooled CPU was temerature 69°C and average frequency 2,6 GHz from 2,4 GHz. For 2860QM temerature was 76 °C on base 2,5 GHz

GPU temperature with stress test FurMark.

And last is fan speed.

 

How did you make the water blocks for the laptop. Do you have your own machining tools.

 

very cool, hope u did well on your project. I have two of these 6600's with the amd 6100's. Can't wait for water cooling in the future, imagine a 2.5 lb laptop with an rtx 2080 lol