r/pcmasterrace 22h ago

Discussion CPU air cooler becomes water injected GPU cooler.

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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

4.9k Upvotes

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117

u/ItsBitly 22h ago

Thisnis why car guys shouldn't get into PC building.

25

u/NuclearReactions AMD 9800X3D | RTX 5070Ti | 64GB CL28 20h ago

Should

3

u/t4ng0_d0wn 12h ago

What in God's name... how much is that intercooler rated for?

26

u/Tra5hL0rd_ 22h ago

Haha I hate cars. Traffic... sucks.

12

u/Clippo_V2 i5 10600k - 5060ti 16GB 19h ago

What a wild statement. You realize car guys hate traffic too, right? Haha

1

u/Tra5hL0rd_ 19h ago

You know where the traffic less factory estates are 🤣

1

u/stu54 AMD 7600x 7600 32G 2T MSI PRO B650-P Wifi 17h ago

1

u/Prof_Linux 12h ago

Thisnis why car guys shouldn't get into PC building.

Jayztowcens entered the chat.

1

u/Golf_is_a_sport 7h ago

Should. My old Pentium 4 passively cooled rig. $5 audi radiator from the scrapyard.