Explained with GIMP: How the shunt mod works

How does a shunt resistor mod allow you to push more power into the GPU? Well that's what this video covers.

[santeenl]

Heh after watching your pcb breakdowns and explaining the shunt resistor was enough already, I think this video is great however for people with very limited background in electronics. Great job!

[swordyou]

And why exactly do people think nVidia should stop using shunts?

[jasonbrown]

thanks, i am learning about this mod so that i can apply it to a ebike controller

[xiaxia]

it's actually hard to lower the shunt resistance with silver paint or something similar. A normal silver paint has sheet resistance of ~0.02ohm(20mOhms!), which has very little affect lowering the shunt resistance.

[axellno]

I don't think you answered those people's question, why it is even there in the first place? Why they need to limit and what are the benefits of the limitations? I like your educational videos. Maybe you could do one that should be always linked in the description where you explain how a PCB design work.. what are the main components and their functions. That would help to understand your PCB tear downs even more for those who have less idea about electronic components. (Maybe it is not even fit in one video... you know it better.. :) )

[viko]

Nicely done, even thought i know how it works, i enjoyed :)

[Ragnarrage]

Dood, more of this! Safe to mod just one shunt resistor if 3 exists on pcb? Further, will the gpu "draw" too much power to reach normal clocks or mild over clocks? I assume the gpu is voltage capped anyway to the typical 1.09vc. Won't the gpu just voltage cap? They have thermal caps, voltage caps, and "usage" caps. All which cause a throttle when exceeded. This just affects the tdp cap yes?

[DmitriWeissman]

Good one.
that's is really basic physics and what is interesting is how things working after that. I mean how it helps to achieve higher freq.
I understand that at any given voltage, the card will allow more current than it thinks.
I somehow understand (may be I'm wrong) that higher voltage (to some point) helps to overcome the leakage between transistors and achieve higher frequency. But i don't get what role current plays.
It would be great if you could explain the relation between voltage, current and frequency in a follow up video :)

[touvlxs]

will a mod like this work on ebike contoller

[abassrazak]

Please I’m not understanding do you manage to get the three (3)

[MusicSoundPlayer]

“Convert then into the same size thing” - lmao

[indexMemories]

So all you have to do is find 3mohm resistor and solder it over the old one?Also I suppose it idles at higher voltage as well?Thanks.

[Teeq]

Thinking about shorting the resistor on my card for a little more power, but don't really like the idea of adding a liquid metal to short the resistor on the board. One inconstant/unpredictable results with a liquid metal and two the potential of the metal shifting and causing another short that renders the card inoperable. It also seems for what i have read, that completely bypassing the resistor will cause an error in the card resulting in it not booting or severely down clocking.

With that said, what about stacking another 5mohm resistor on top of the current or straight up replacing it? What would be the required spec? As i see a site like mouser offers .002, .005 ohm ect..., just don't know if there is something else in the data sheet in need to be looking for.

Or is there even another option that would table permanent solution?

[modmiiwii]

What physics book do you recommend for bludgeoning?

[jeffreymelton]

so how many miliohms was the mod exactly for it to arrive at 3 miliohm? is it just 3 miliohm and it shorted the initial 5 miliohm?

[AlexanderVRadev]

hey great video. I question though. On a GPU that has no extra power connectors, how do I find the shunt resistors? All the shunt mod videos I can find online are about the 1080 or 1070, but on my GPU there is nothing on the PCB remotely like the shunt resistors I see in those videos.

[mrcleanisin]

Your work is a little messy. When I push the one button on my computer it looks like this, 1 and seven looks like this, 7. Ohm spelled backwards is mho and is used to describe very low resistance applications. When e-bike people want to shunt mod their bikes for extra speed they shunt across the current limiting wires in the motor control box, which can overheat the MOSFETS. A real shunt mod is to shunt the intermediate device entirely by let's say a relay.

[frederikk.]

Do more electronics for Dummies - please ;-)

[x]

so how exactly is Nvidia using this to exploit it's customers?