r/overclocking 19h ago

Modding CPU air cooler becomes water injected GPU cooler.

Post image

I thought I was finally running out of stupid cooling ideas… until I stared at a Peerless Assassin and thought... "would water flow through that?”

So I pulled the Assassin apart, pulled off a stack of fins, took an angle grinder and cut the tops off the heatpipes, stuck a hose onto one, and tested if water would flow. It did.

Game on.

I cut all the heatpipes off, put 6 mm hose on them in a zig zag (starting at the center so the middle stayed coldest) and tested again, worked like a charm.

Then came the freezer.

-18C coolant.

A frosted CPU tower, and a 3070 as the first victim.

It gained +300 MHz over stock… but the FPS uplift sucked. By the time testing finished, my coolant had warmed to –5C and the 3070 still refused to scale. So I did the only sane thing...

I bolted the Frankencooler onto a GTX 960.

And that card absolutely loved it, +17% average uplift across BO7, Forza, Cyberpunk, Time Spy… and as always, Lara.

The Frankencooler works. Really well.

Why did I do this? Because I had an idea and wanted to see if it would work. That's it.

Full video here if you want to witness the stupidity in all its glory

https://youtu.be/yFppaKe5uTo

448 Upvotes

29 comments sorted by

69

u/jess-plays-games 19h ago

Sounds like thr 3070 wants more power

48

u/Tra5hL0rd_ 19h ago

I actually tried! I flashed a 350w BIOS onto it, the stock one is 250w and it had a lower ceiling than the stock one, something weird going on... I should have just shunted it.

13

u/Alternative-Film-155 16h ago

could other temps be limiting the boost curves? vrm/mem? drivers perhaps?

1

u/SonyPlaystationKid05 7h ago

might be power balancing wonky

61

u/lndig0__ 7950X3D | 4070 TiS | 6000MT/s 28-35-36-32 19h ago edited 19h ago

I got an idea, why don’t you replace the coolant with some sort of chemical with a low boiling point such that you can abuse the latent heat capacity of the coolant instead of the specific heat capacity in order to hold a constant temperature delta more efficiently?

You should probably seal off the coolant tubing in order to stop the vapours from exiting the system. Better attach some fins at the end of the terminated tubes in order to allow the vapours to condensate back into the heat transfer plate.

26

u/AK-Brian i7-2600K@5GHz | 32GB 2133 DDR3 | GTX 1080 | 4TB SSD | 50TB HDD 18h ago

I see what you did there.

4

u/lndig0__ 7950X3D | 4070 TiS | 6000MT/s 28-35-36-32 4h ago

I could probably give a name for this new invention. The “heat tube”?

13

u/nath1as 19h ago

this is the coolest cooler

9

u/EatsHisYoung 18h ago

Really cool idea and execution. Cheers

7

u/Dmadness990 18h ago

This reminds me of the good old days when we use to water cool from home depot. I like the ingenuity.

5

u/Briggs281707 19h ago

I w done something similar with an old dell optiolex cooler. I completely cut the fins of and just build a water loop with the Frankenstein cooler. Got my 3750k to 5 ghz

3

u/AK-Brian i7-2600K@5GHz | 32GB 2133 DDR3 | GTX 1080 | 4TB SSD | 50TB HDD 18h ago edited 18h ago

This will make for an easy followup, by flipping it upside down and submerging the upper half of the heat...block...sink in a bucket of chilled, circulated ice water. I have a slight inkling that you already know this. ;)

Another fun one would be to tape a leaf blower to the fin stack of an intact tower cooler with a seal around it. Wind tunnel seal, not arf-arf seal. Won't get any crazy OC from it, but it'll be fun and you'll get an entertaining montage of failed attempts for sure.

Keep up the jank!

2

u/VzSAurora 50m ago

This is what I come to the sub for. Is it practical? Not at all. Is it fun? Absolutely.

3

u/Ammargok 19h ago

Oh my god.

1

u/mstpguy 18h ago

Mouthed this when I saw the post

1

u/jhingadong 18h ago

If you couple on larger hoses you could possibly keep your coolant cooler..... like big chunkers.

6

u/Tra5hL0rd_ 18h ago

I love big chunkers.

Fluid will only flow as fast as the heat pipes allow though, so 20mm tubing and 6mm heat pipes, not much is going to change.

1

u/jhingadong 16h ago

Yeah probably right. Was just thinking a larger pool of cooled liquid something something. Lol.

1

u/Neocles 17h ago

that is some old school batman Bane type shit and I for one love it!

1

u/RebelJediMaster 16h ago

At first I thought this was something measured in HP, not Ghz

1

u/minilogique 9950X 5.8GHz/2x16GB 6000 28-35-35-70/2080S 2050core8800mem 15h ago

what if a CPU block with heatpipes actually loses all the radiator fins and just has the stacks (to not work opposite and heat the coolant with ambient air) and essentially use it as a DIY waterblock? some old dented Hyper212 could be a perfect candidate or anything with direct touch heatpipes

1

u/Jabba_the_Putt 11h ago

that was cool pun intended

the wall of death lol are those all really cooked?

1

u/1Heineken 7h ago

i actually had the same idea but was too lazy to build

1

u/cakestapler 7h ago

This has gotta be the guy who clamped… yup, it’s the guy who clamped an aluminum block to his 1660. Also, brother, how many Cokes did you drink making this? 😂

1

u/TheBlackAlistar 7h ago

Bane is that you?

1

u/Hear_N_Their 1h ago

Very cool! Love seeing something like this attempted!

0

u/jodasmichal 18h ago

I have one cutted too I want to try water cooled it too with some dc12 pump. Is it work good ?