suseda
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Hi team,
I want to replace my 6 year old 1080TI thermal paste and all thermal pads.
Can someone tell me what size thermal pads I need?
I want it to be like the original but someone already opened the card and it doesn't look good, I'm not sure they are normal sizes.
Thank you in advance
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Sajin
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Re: GTX 1080 TI SC2 Thermal pads
2023/01/24 03:06:08
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☼ Best Answerby suseda 2023/02/08 17:49:24
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HowJesN0
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 04:32:52
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just registered here for this.
any info about pad size and thickness?
I follow this guide, but not sure if those thickens are correct. good for memory, and VRM, not sure about baseplate.
Guide says 1mm and 1.5mm, I used 1.25mm and 1.75mm Kritical pads as they are a lot softer, and a bit thinner than advertised (1.25 must be around 1.1)
They did compress on memory nicely, but on baseplate, imprint seems low.
My VRM and memory temps vent down with Kritical pads, don't go over 55 on VRM which is great.
Bbut GPU1 temp goes up to 74-76C with hotspot at 90C and fans are at 80% at that temp, which is maybe 1-2C worse than before with stock fans, which look in a bad shape. (will post photos)
Could it be too thick pads so lower pressure on GPU?
Card is not overclocked.
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ty_ger07
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 05:12:37
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Sounds like the pads are too thick and reducing GPU contact pressure.
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HowJesN0
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 05:31:40
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ty_ger07
Sounds like the pads are too thick and reducing GPU contact pressure.
Thats why i used Kritical pads. they are very soft and squishy. ones on memory got flattened good. those on baseplate look like low pressure upon checking after initial mount and test. in this video, original pads got a quite of an imprint from the cooler youtube watch?v=MK2-6xew3Uw
post edited by HowJesN0 - 2023/02/27 05:54:59
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ty_ger07
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 07:53:01
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Well, you asked the question, and I am telling you that is what the symptom indicates. Believe it or not, but you aren't going to get a different opinion from me. Just because they "got flattened good" doesn't mean that they aren't still too thick. You purposely used pads which were thicker than what was recommended to you. That would be the first thing I would test. I would suspect that one set of pads (and the core) has low contact pressure because the ones which "flattened good" are still too thick and still not flattened enough. The symptom indicates an application issue or a contact pressure issue.
post edited by ty_ger07 - 2023/02/27 07:55:45
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HowJesN0
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 12:58:36
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But with VRM and memory temps lower, doesn't that mean that pads have better conductivity, and more heat from those parts is going to the heat-sink, thus increasing overall heat needed to be disipated?
And in turn gpu area is hotter? Paste did spread on entire silicon.
Also no need to be rude.
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ty_ger07
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 13:21:59
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In my opinion, you are being rude. Why ask a question and then argue with the response? If you think everything is fine, don't ask. You say it is now worse with 80% fan speed than it used to be with stock fan speed. The amount of heat generated by the VRM and memory is not very great; not enough to create a noticeable difference in core temperature. If you have a noticeable deterioration in core temperature, with everything else the same, the contact pressure or application is suspect. You said that the pads you used were too thick and squished a lot; therefore, core contact pressure is suspect. Even contact is not the same thing as adequate contact pressure; it can have even contact with the core, but if contact pressure with the core is low, thermal transfer will be poor. If you think it's fine and you were asking the question just to argue with someone, go on with your day.
post edited by ty_ger07 - 2023/02/27 14:43:30
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suseda
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 14:39:20
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I have official answer from EU support -
"Many thanks for your inquiry to the EVGA support team.
Based on our data, you can use a thickness of 1.5 mm for this graphics card on the front side and 2 mm pads on the back side under the backplate."
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HowJesN0
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 23:27:10
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ty_ger07
In my opinion, you are being rude. Why ask a question and then argue with the response? If you think everything is fine, don't ask. You say it is now worse with 80% fan speed than it used to be with stock fan speed. The amount of heat generated by the VRM and memory is not very great; not enough to create a noticeable difference in core temperature. If you have a noticeable deterioration in core temperature, with everything else the same, the contact pressure or application is suspect. You said that the pads you used were too thick and squished a lot; therefore, core contact pressure is suspect. Even contact is not the same thing as adequate contact pressure; it can have even contact with the core, but if contact pressure with the core is low, thermal transfer will be poor.
If you think it's fine and you were asking the question just to argue with someone, go on with your day.
sory, I meant temps were a few degrees worse with same fan curve, event with old original pads temps got around 74-76.Anyways, did repad last night, left those 1.25mm on memory, trimed them a bit to be of right size of mem. chip, and on base-plate replaced 2mm on heatpipe with 1.75mm. So with fan curve set to go 60% @ 50C, and ramp up to 80% @ 75C after 45mins of gaming warzone, core gets to 74-76C, VRM 56-58C (one close to motherboard 60C), and memory is around 50C.
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HowJesN0
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Re: GTX 1080 TI SC2 Thermal pads
2023/02/27 23:39:01
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suseda
I have official answer from EU support -
"Many thanks for your inquiry to the EVGA support team.
Based on our data, you can use a thickness of 1.5 mm for this graphics card on the front side and 2 mm pads on the back side under the backplate."
So thats 1.5mm for memory and vrm area, including fron baseplate that sits on them? 2mm only on backplate?
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