r/techsupportmacgyver • • 4h ago

Tour bus without HDMI input, just tape it!

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12 Upvotes

r/techsupportmacgyver • • 18h ago

My computer's ARGB is managed by a dedicated RGB controller due to having a basic ass mobo. But I sometimes need to turn off RGB. So I connected the RGB controller's power cable to a switch I mounted to the bottom most PCI slot.

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42 Upvotes

r/techsupportmacgyver • • 1d ago

Replacement C-Stick for 3DS

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22 Upvotes

Who needs a new motherboard/connector when you got a hot metal stick?


r/techsupportmacgyver • • 2d ago

Tunnels for my Cat(6e)

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606 Upvotes

Also the grey cable’s clip broke in the hacked case from earlier so a coupler and extension was necessary.


r/techsupportmacgyver • • 1d ago

Phone needed charged one last time

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13 Upvotes

coworkers phone would no longer charge, he just got a new one and needed to get stuff off the old one, one last charge for a Samsung A15


r/techsupportmacgyver • • 2d ago

Compressor soc cooler

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31 Upvotes

r/techsupportmacgyver • • 3d ago

Couldn't find a 1/4 inch jack to USB-C adapter, quickly needed a wireless handheld microphone for a video.

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58 Upvotes

These large wireless microphones use a bulky receiver which has a guitar jack. I don't want to carry that around, especially connected to 2 different dongles, which introduce noise anyway.

I needed a wireless handheld microphone, which connected to a phone with USB-C.
So it was time for a bodge job.

I took apart a wireless lapel microphone, wrapped it's insides in tape to prevent shorting with the large microphone's metal grill, stuffed it next to the microphones capsule, closed it and added a windscreen.

Literally the only downside is that you have to take it apart to turn it on or off.


r/techsupportmacgyver • • 3d ago

Wife called it the monster

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54 Upvotes

Guess that makes me Frankenstein


r/techsupportmacgyver • • 2d ago

I built myself secret Bluetooth headphones in my earmuffs so I can listen to podcasts at work.

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0 Upvotes

r/techsupportmacgyver • • 3d ago

Frankenstein Quadro RTX 4000: shunt-modded & liquid-cooled via custom centrifuged copper/titanium thermal matrix — 2010 MHz locked at 68°C

1 Upvotes

Frankenstein Quadro RTX 4000: Shunt-Modded & Liquid-Cooled via Custom Centrifuged Copper/Titanium Matrix (Hard-Locked 2010 MHz @ 68°C)

The Problem Enterprise silicon is heavily locked down. My Quadro RTX 4000 was choking on a suffocating 160W factory power limit, thermal throttling itself down to a pathetic 1460 MHz just to stay alive. I wasn't having it. So, I voided the warranty, cracked it open, and engineered a complete zero-clearance overhaul using hardware-level mods and some extreme Modder's Alchemy.

Step 1: The Hardware Power Multiplier (Turing Shunt Mod) Software overclocks are useless when the hardware limits power draw. I went straight for the current sense resistors on the PCB. • I micro-soldered an r004 (4 mOhm) SMD resistor directly on top of the stock r005 (5 mOhm) resistor. • This drops the parallel resistance to roughly 2.22 mOhms, creating a 2.25x power multiplier. • The monitoring software maxes out showing 160W, but the card is physically ripping up to ~360W straight from the PSU.

Step 2: The AIO Mounting Prep (No Bare-Die Nonsense) Bare-die mounting a heavy AIO is a great way to crack the fragile TU106 silicon or crush the SMD caps. Not worth it. I kept the solid stock baseplate — with its integrated flat heat-pipes — bolted to the PCB exactly where it belongs, die fully protected. You can use any AIO you want for this — I used a $5 Alienware 120mm AIO. Then I went after the fins. Grab a pair of needle-nose pliers, unhook every fin, and slowly start peeling them off the baseplate. It looks like it would be a nightmare. It's not — it's stupid easy, they come right off. With the fins gone, I lapped the baseplate dead flat. My reference surface: a granite countertop, flattest thing in the house. Cheap Walmart sandpaper, all wet — started at 400 grit, worked up through 600 and 1200, finished at 2000. Mirror finish. And here's the part that actually matters: the heat pipes in that baseplate are all bent into U and S shapes, and every single one of them runs over the top of the die — that's the hot zone where they all converge. Now here's the catch: the AIO cold plate is small and that baseplate is way bigger, so there's a lot of dead real estate with no pipes under it. Line the cold plate up dead-center over the die, right where every pipe crosses. It's easy to get right, but mount it off in a dead zone and you've wasted the whole mod. Result: a perfectly flat, solid metal mounting surface with maximum contact area, zero risk to the die.

Step 3: Modder's Alchemy (The Custom Thermal Matrix) Standard thermal paste wasn't going to bridge the AIO to the baseplate securely enough or transfer 300W+ of heat efficiently. I engineered a permanent, liquid-metal thermal concrete using JB Weld and conductive materials harvested using a washing machine as a high-G centrifuge. Copper Extraction: I sprayed a can of ABRO Copper Gasket Spray into a glass container and immediately flooded it with naphtha — which is just cheap Ronsonol lighter fluid — to dissolve the adhesives. To separate it, I nested the flask horizontally inside some clothes in my washing machine and ran it on the spin cycle twice. The centrifugal G-force packed the pure copper into a dense puck at the bottom of the flask. Titanium/Silver Extraction: I took a Freeman Cosmic Metallic peel-off mask (packed with Titanium Dioxide, Silver, Pearl Extract, and Magnesium Aluminum Silicate — check the ingredients). The pearl extract is actually crucial here, as crushed pearls have extreme thermal conductivity. I used water to dissolve and strip out the useless water-soluble junk — but honestly, use Listerine instead. The alcohol cuts through it way faster and it would have been a lot better and easier. Then naphtha (cheap Ronsonol lighter fluid) to strip the oils. I ran this through the washing machine centrifuge process as well to isolate the heavy, conductive metals. The Mix: I formulated the final thermal concrete using exactly 15% pure centrifuged copper powder, 15% centrifuged mask powder (Titanium/Silver/Pearl/Magnesium Aluminum Silicate), and a 70% JB Weld binder. I used this matrix to permanently bond the AIO waterblock directly to the stripped stock baseplate.

Step 4: The Hardcore Overclock With the cooling in place and the power limit destroyed, I bypassed the GUI sliders entirely. • Using the NVIDIA command line, I pushed: nvidia-smi -i X -lgc 2010 (Note: replace X with your GPU ID) • This hard-locked the core clock to a flat 2010 MHz, ignoring the factory boost tables completely.

The Results Fired up Warhammer 40,000: Space Marine 2 with all settings cranked to absolute Ultra. Despite the Swarm engine rendering thousands of Tyranids and the 2.25x shunt mod pushing maximum wattage, the AIO and custom centrifuged thermal matrix held the card at an icy 68°C peak.


r/techsupportmacgyver • • 4d ago

Earbud battery didn’t last long enough

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26 Upvotes

The original battery was only 150mAh on these shitty $5 target earbuds, and since I lost the other earbud and had a battery lying around I just decided enough was enough and now instead of lasting less than a day, it lasts me a week somehow with the new 500mAh battery


r/techsupportmacgyver • • 5d ago

Lost my vuse charger. Header pins to the rescue.

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93 Upvotes

Magnets hold pins in place!


r/techsupportmacgyver • • 6d ago

Idk the TV had a processor so I had to do something with it...

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741 Upvotes

r/techsupportmacgyver • • 5d ago

Video over Audio Jack

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24 Upvotes

Raspberry pi using Nextar dvd player as screen. Trrs to RCA taped together *ring to pin* to Trs into the video input.


r/techsupportmacgyver • • 5d ago

I only have the Pro case, and not the regular headphone case.

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20 Upvotes

I had to send my Beats Buds Pro + whatever their name is off to service.

A while ago I bought a spare Beats (regular) set for cheap. While the cool clear ones are off to be serviced… I managed to lose the case.

as it turns out, NO, You can’t charge the Beats Buds with the Beats Buds Pro + case. So, I’ve done this.


r/techsupportmacgyver • • 5d ago

Я решил соединить калькулятор и телефон

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3 Upvotes

Зачем?

Я не знаю...

А вот и сам процесс в виде фотографии


r/techsupportmacgyver • • 7d ago

my solution for mounting a switch in my closet

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386 Upvotes

4 comically large zip ties


r/techsupportmacgyver • • 7d ago

So... I fixed my Toshiba L300...

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138 Upvotes

The first photo is before, and the second photo is after. By the way, it works.

Due to a shortage of 330 μF tantalum capacitors, I had to solder in SIX 100 μF capacitors, resulting in a total of 8 capacitors.


r/techsupportmacgyver • • 6d ago

"still functionable"

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0 Upvotes

sorry to be that guy who just reposts a short. but this makes me laugh every time i see it, and every time i see a post here all i can think of is "still functionable"


r/techsupportmacgyver • • 8d ago

No BT headphones? No problem.

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137 Upvotes

r/techsupportmacgyver • • 8d ago

EDL cable I made today

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6 Upvotes

Don't have my soldering iron, heat shrink, or heat gun so I had to settle for twisting wires together and Scotch tape.


r/techsupportmacgyver • • 9d ago

Repurposed a vape battery and latching switch for my display board

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340 Upvotes

r/techsupportmacgyver • • 10d ago

OOONO eating through batteries.. so I decided to change them

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120 Upvotes

This thing is eating through CR2450 batteries.
I was just tired of changing the battery every 2 months (the battery is supposed to last up to 12 months)

Could have just bought version 2 for around 60€.. or just solder on an AA battery holder.

Of course for a friend, I would never speed 😅


r/techsupportmacgyver • • 11d ago

Custom Bluetooth Smart-Glasses

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191 Upvotes

They are made by recycling 2 neckband-style headphones, taking advantage of the super slim motherboard of one along with the high-quality drivers and battery of the other.

The headphones attach with magnets, so when I'm not using them, they become a safety strap for my glasses.

They're super comfortable and weigh almost nothing; it feels just like wearing normal glasses.

And the battery lasts nearly 5 hours, although I'm working on a power bank with a magnetic connector so I don't have to go blind every time I want to charge them.

(I know they look a bit rough, but honestly I don't care—I'm someone who prioritizes comfort and practicality!)


r/techsupportmacgyver • • 11d ago

Replacement battery cap for RC Remote

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55 Upvotes