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1660ti shunt mod without liquid metal

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post #11 of 25 (permalink) Old 08-06-2019, 05:36 PM
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whiskey!

Remember the golden rule of statistics: A personal sample size of one is a sufficient basis upon which to draw universal conclusions.
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post #12 of 25 (permalink) Old 08-06-2019, 08:59 PM - Thread Starter
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Quote: Originally Posted by looniam View Post
you're welcome.

btw, i just saw that card has some voltage read points (w/DMM) though its not a high end card, thats pretty cool to play with.

if this is your first time:

6 screws for that card; 4 gpu and 2 vrms. also some factory applied TIM bonds like motor to brick so a slight twist will help pulling the heatsink off. mind the short cable for the fans. you may want to consider using a small flat screw driver to pull the plug before taking off the heatsink. but plug it in before putting the HS back on unless you have some needle nose pliers.

you seem cautious before attempting and thats cool but don't let fear get in the way of having fun.

Sounds like a plan I’ll get out my multimeter and find the shunts on the 12v and bridge them from looking at the photos I have only seen one or 2 shunts @ 5 milli ohms is that correct?
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post #13 of 25 (permalink) Old 08-06-2019, 11:24 PM
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Quote: Originally Posted by ratchet4234 View Post
Sounds like a plan I’ll get out my multimeter and find the shunts on the 12v and bridge them from looking at the photos I have only seen one or 2 shunts @ 5 milli ohms is that correct?
there looks to be just one by the 8 pin pci-e connector:

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Size:  232.0 KB

which makes sense as its not a big(ger) chip like the TU104 and only has one power connector. if there was one at the pci-e slot leave it alone or you'll be stuck in idle power state.

fwiw, the "newer thing" is using the same resistor, soldering it on top to run in parallel, reduces the resistance in half. just check there is enough room under the heatsink/shroud.

MrTOOSHORT in the 2080ti owners thread posted that maybe a month ago. its all the rage now.

but mind you, i have not shunt modded anything, still sitting on a maxwell card.

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post #14 of 25 (permalink) Old 08-07-2019, 12:05 AM
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Quote: Originally Posted by skupples View Post
i suppose, but if you're worried about damaging something with a screw driver, then how can you even muster the courage to think about melting solder onto the board?
Still, nice to get a look at it first. No need to rush in. looniam found some great photos and based on them it seems very possible targeting R52.

We do not need to be so negative, this isn't life or death. The best way to gain confidence is to do it and there is nothing wrong with asking. Taking it apart only to need to put it back together again isn't great, I can see wanting to avoid it.

Quote: Originally Posted by looniam View Post
MrTOOSHORT in the 2080ti owners thread posted that maybe a month ago. its all the rage now.
My thread is much older than one month!
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post #15 of 25 (permalink) Old 08-07-2019, 01:17 AM - Thread Starter
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Will check with a multimeter on the weekend comming to see if r52 is connected to 12v.

I like that resistor idea where you put one on top but i think ill just bridge solder over the top of it see how that goes because I am not experienced with this sorta stuff ive been messing with electronics for awhile but not graphics cards
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post #16 of 25 (permalink) Old 08-07-2019, 01:34 AM
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Please look up videos of shunt bypass resulting in permanent protection mode '2D' clock speeds.

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post #17 of 25 (permalink) Old 08-07-2019, 03:15 AM - Thread Starter
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Ive heard about that on the 2080ti.

Will there be the same issue on the 1660 ti???
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post #18 of 25 (permalink) Old 08-07-2019, 05:32 AM
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Quote: Originally Posted by ratchet4234 View Post
Ive heard about that on the 2080ti.

Will there be the same issue on the 1660 ti???
-.-

are you a troll?
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post #19 of 25 (permalink) Old 08-07-2019, 08:33 AM
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Quote: Originally Posted by Asmodian View Post
My thread is much older than one month!
i stand corrected or at least better informed.

whose the man?

you da man!

Quote: Originally Posted by ratchet4234 View Post
Will check with a multimeter on the weekend comming to see if r52 is connected to 12v.

I like that resistor idea where you put one on top but i think ill just bridge solder over the top of it see how that goes because I am not experienced with this sorta stuff ive been messing with electronics for awhile but not graphics cards
fwiw, but again not having done it; i think the resistor is a buttload safer, no or little chance of excessively heating up and compromising the existing resistor solder to the pcb. a little tinning of existing, drop the "new" resistor and put the iron to that.

but not having done it (have i mentioned that? ) i could have FUD issues.

Remember the golden rule of statistics: A personal sample size of one is a sufficient basis upon which to draw universal conclusions.
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post #20 of 25 (permalink) Old 08-07-2019, 12:10 PM
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Quote: Originally Posted by ratchet4234 View Post
Will there be the same issue on the 1660 ti???
It seems very likely, you will probably need to use something over 5 milliohms to bypasses without triggering safe mode.

Quote: Originally Posted by looniam View Post
whose the man?

you da man!
Haha, hardly. I first got the idea it from someone else, for Pascal, since we couldn't BIOS mod them like Kepler and Maxwell. My Titan X (Pascal) was shunt modded the same way. I just thought it was funny to credit it to a month ago since the technique has been discussed for years on this forum.

Quote: Originally Posted by looniam View Post
fwiw, but again not having done it; i think the resistor is a buttload safer, no or little chance of excessively heating up and compromising the existing resistor solder to the pcb. a little tinning of existing, drop the "new" resistor and put the iron to that.

but not having done it (have i mentioned that? ) i could have FUD issues.
No FUD here. A great description and I strongly agree, having done it multiple times myself.

Well the issue with liquid metal is not heat, the gallium in the liquid metal actually dissolves the solder - like salt in water only slower.

Last edited by Asmodian; 08-07-2019 at 12:13 PM.
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