Titan X (Pascal) Shunt Mod Done With Resistors - Page 2 - Overclock.net - An Overclocking Community

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post #11 of 46 (permalink) Old 07-31-2018, 09:53 AM
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Quote: Originally Posted by GnarlyCharlie View Post
I tinned the new resistor, spread flux on the solder pads of the existing resistor, and soldered using some quad eutectic solder and a small chisel tip. I solder at 750 °F for most things, get in and out without staying too long on the part. I don't remember it being too tough, just nerves over trashing a $1200 card.

If I had it to do over, I'd use 2M0 instead, but it's under a water block in a full loop and I'm not pulling it out to change it.

What's the reasoning for 2M0?
Edit - ordered the 5M0 resistors last week and they just arrived

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post #12 of 46 (permalink) Old 08-01-2018, 08:27 AM
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The 5M0 didn't really do much IMHO. Card runs fine and outperforms most other Xp cards, but it still hits the power limit much of the time. Looks like only one other Xp with a higher graphics score than mine (8661 here, just water no LN2).

https://www.3dmark.com/hall-of-fame-...sion+1.1/1+gpu

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post #13 of 46 (permalink) Old 08-02-2018, 05:02 PM - Thread Starter
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Did you test power use on a repeatable workflow before the mod? Are you sure you got good solder connections everywhere? I can see that being an issue when not tinning the original resistor given how hot I needed to get it before the solder would actually stick/flow correctly.

I ask because you should be able to use twice the power before hitting the limit, I measured exactly that. Nothing I can run on it has triggered the power limit even for an instant, its max value in afterburner stays at 0. I have not and will not test something like Furmark.
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post #14 of 46 (permalink) Old 08-03-2018, 06:43 AM
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I didn't do any scientific before/after. I ran some benches and compared scores before/after, the after were definitely higher.

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post #15 of 46 (permalink) Old 09-12-2018, 01:53 PM
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Quote: Originally Posted by GnarlyCharlie View Post
Here's the same mod I did back in April 2017

https://www.overclock.net/forum/69-n...l#post26055602

If you open the image in a new tab you can enlarge it a bit more.

Hi,
For the record you guys are talking about these objects ?
They look different than the link in the op pointed to in the link
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post #16 of 46 (permalink) Old 09-12-2018, 02:01 PM
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Quote: Originally Posted by ThrashZone View Post
Hi,
For the record you guys are talking about these objects ?
They look different than the link in the op pointed to in the link
The things with 5M0 printed on them are the shunts you need to "mod" (either with LM or solder).





IIRC - the bottom most one can be skipped as it controls power through the PCI-E slot and you don't want it taking more than 75w from the slot. But don't quote me on that.

I did the shunt mod for my 1060 but took it off after a few weeks because it didn't do much for performance and there are some horror stories about LM eating away the shunts and them falling off.

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post #17 of 46 (permalink) Old 09-12-2018, 02:47 PM
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HI,
Okay yeah it was confusing see the image from this
https://www.mouser.com/ProductDetail...OAOWVexWG0k%3d

And nothing on the card show shows it lol

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post #18 of 46 (permalink) Old 09-12-2018, 02:56 PM
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Quote: Originally Posted by chibi View Post
ordered the 5M0 resistors last week and they just arrived
If you do end up wanting more current, but don't want to wait on different resistors. You can stack 2 to get effectively a 2.5mΩ resistor.

You might want to make sure it still clears your cooler/waterblock if you do this tho.

Edit: post was a little older than I thought, probably not that useful of a reply, I'll leave it as it might be useful to somebody else.
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post #19 of 46 (permalink) Old 09-12-2018, 03:26 PM - Thread Starter
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Quote: Originally Posted by ThrashZone View Post
Okay yeah it was confusing see the image from this
https://www.mouser.com/ProductDetail...OAOWVexWG0k%3d

And nothing on the card show shows it lol
Yes, that was confusing to me too. The image is from one of the tiny versions of this resistor from the same line, the giant ones I ordered look exactly like the ones on the card, as you can see in my photos. I did order from that link with the wrong image. I almost ordered other ones that had a more similar image but I am glad I didn't.

They do say "Images are for reference only See Product Specifications" and they mean don't use the image for reference beyond what type of component this is.

Quote: Originally Posted by Gilles3000 View Post
If you do end up wanting more current, but don't want to wait on different resistors. You can stack 2 to get effectively a 2.5mΩ resistor.
I actually bought 2mΩ resistors as well, which is about as low as you can go without triggering a low power safety check, but decided to keep it at a limit of double the power in case someone did run something like furmark on it.
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post #20 of 46 (permalink) Old 09-12-2018, 03:46 PM
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Hi,
Thank you both for clearing up my confusion
Interesting process for sure would these be okay for a 1080ti ftw3

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