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Helpful ReplyHot!3090 (Kingpin & others!) - Get that backside VRAM cool!

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Jsunn
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/12 12:19:15 (permalink)
For those that have changed out the thermal pads, are you still seeing improvements? Are you happy with what you did and are they anything that you'd do differently?
Did you find the 3mm pad from Optimus worth it in the end, or would you go a different route?
Thanks and my KP gets here Monday 17 Jan.

i9 10900K @ 5.3GHz 1.35v 
32Gb 3600MHz
Asus Maximus Formula XII 
EVGA RTX 3090 Kingpin
Watercool all the things
https://builds.gg/builds/...ustom-built-case-26023
pcgamerv2
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/13 11:25:42 (permalink)
@Jsunn Check out my post where I did a near full coverage thermal pad and the improvements were great. My PC has been running constantly since I modified it and temps are still rock solid and same as day 1
 
https://forums.evga.com/FindPost/3437690
redteamgo
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/13 12:02:55 (permalink)
pcgamerv2
@Jsunn Check out my post where I did a near full coverage thermal pad and the improvements were great. My PC has been running constantly since I modified it and temps are still rock solid and same as day 1
 
https://forums.evga.com/FindPost/3437690


your setup looks amazing !!
 
have you had any issues running the HC block and the mp5works block in parallel?
 
I was actually just looking at the MP5works serial block yesterday but I paused because I wasn't quite sure how I would integrate it with different tubing sizes at different places in the loop.  it seems like the the 4mm tubing for the mp5works block would create a backflow problem if it was done in serial with 10/16 tubing everywhere else.
 
also, did you use the 3mm clips or the 6mm clips?  just asking to avoid buying replacement clips and having to ship them across the pond.
pcgamerv2
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/15 08:41:34 (permalink)
redteamgo
your setup looks amazing !!
 
have you had any issues running the HC block and the mp5works block in parallel?
 
I was actually just looking at the MP5works serial block yesterday but I paused because I wasn't quite sure how I would integrate it with different tubing sizes at different places in the loop.  it seems like the the 4mm tubing for the mp5works block would create a backflow problem if it was done in serial with 10/16 tubing everywhere else.
 
also, did you use the 3mm clips or the 6mm clips?  just asking to avoid buying replacement clips and having to ship them across the pond.




Thank you! I went with the parallel version due to the clean setup and low profile. My card is vertical and there isn't much space in the rear. Parallel appears to be working and keeps the VRAM super cool. I went with the 6mm clips but had to modify the backplate to make sure they bite. They even offer 8mm clips now. I would order the two sizes since they are so cheap. 
 
Here are more details about my build: https://sprungmass.com/element-29 If you scroll down to the "GPU Assembly" section on my build log it goes into detail about everything. 
DZelmer
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/16 22:41:55 (permalink)
I have one of the mp works parallel back plate coolers on a stock hydrocopper seems to work pretty good for not doing any thing to the card at all. Im still trying to get my buddy to cut 2 solid copper back plates for me on the cnc...then i will add a big thermal pad. The hydro copper is the lower of 2 cards i have in this computer with a 3 space pci spacing and there was no way any thing else would fit in there no fitting i could find would even remotely have enough clearance for the Series cooler with the bigger lines! I tried every thing i could think of. I do have a series back plate cooler for the top car though i don't see there being much of a temp difference. Will definitely give a update if i ever get the copper back plates and finish this on-going...never ending build.
DZelmer
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/16 22:47:00 (permalink)
I love! The copper super clean! If i ever do a liquid rig again its going to have the external rad for sure! Only seen 1 that blew even yours away but it was crazy even the frame was made out of copper tubing and was part of the cooling system! Still super awsome build!
DZelmer
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/16 22:49:40 (permalink)
Well i screwed something up there was suposed to be a quote in that.. see below.

Thank you! I went with the parallel version due to the clean setup and low profile. My card is vertical and there isn't much space in the rear. Parallel appears to be working and keeps the VRAM super cool. I went with the 6mm clips but had to modify the backplate to make sure they bite. They even offer 8mm clips now. I would order the two sizes since they are so cheap.

Here are more details about my build: https://sprungmass.com/element-29 If you scroll down to the "GPU Assembly" section on my build log it goes into detail about everything.
redteamgo
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/20 15:35:49 (permalink)
I am excited, I just got my mp5works block.
 
Going to install this weekend I hope!  Its has a really nice feeling of heft to it and it has a preinstalled thermal pad.  Looks likeit will be very straight forward.

post edited by redteamgo - 2022/01/20 15:37:31
redteamgo
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/20 21:00:23 (permalink)
I couldn't help myself, I installed it tonight.  Very promising results.  Not as good as an active backplate from optimus no doubt but I'll post the 20x PR comparison before and after.
redteamgo
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/21 06:38:50 (permalink)
PR 20x run, before (left) and after (right).  Ambient was probably about 1C cooler last night during the before run.
 
GPU temp change is pretty nominal, HC block does a good job with that.  There are broad favorable changes to the temps.  GPU hotspot has always been my challenge.  The decrease isnt a ton but the stability is vastly improved.  Hotspot sits around 68-70 whether +mem is +0 or +mem is +1000, which is impressive.
 
The rest of the backside temps speak for themselves, especially PWR5.  I had some trouble with the clips like others have said.. so I kind of rigged it to the backplate with some velcro straps.. lol.  
 
I haven't had a chance to test the waters with +core yet.
 
 

 

 
 

 
 
post edited by redteamgo - 2022/01/21 06:40:18
Gotspeed_2000
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/21 09:23:39 (permalink)
Redteamtango,
Nice work documenting the difference.  Looks like you have the solution you have been looking for in reducing the VRM temps and that powerstage 5 temp too.  Just to make sure those temps are in celcius right?  If so, the drops in temperature are pretty good.  You should feel good about the impact the changes made.  May not win any appearance awards with the velcro straps, but the performance looks very solid.  To me, I would also prefer the results you are getting rather than the appearance of a couple of velcro straps you might be hard pressed to see once your case is closed up and side glass in.  
 
The choice for you to add the MP5 backplate looks like the right decision.  Well worth the cost and time to add it to your loop from these early results.  
 
Now enjoy your pc and make some runs on it to see how much your scores will improve with the reduced temperatures.  

Phanteks Enthoo Pro 2
I9 12900K with EK Velocity 2 Block
3090 Kingpin with Optimus Block
Asus Hero Z690 Mobo
64GB DDR5 RAM Trident 6000Mhz 
1TB Nvme primary /2TB Nvme secondary/1tb SSD drive
EVGA 1200 Watt Supernova PSU
14 Lian Li AL120 fans
1 * 480mm medium thickness rad, 1 * 360mm Medium thickness rad, 2 * 360mm thin rads with EK Pump/res combo.  Custom hard tube loop.  
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redteamgo
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/21 13:13:40 (permalink)
Gotspeed, thanks for the feedback.  That is correct!  Temps are in Celsius.
 
But yeah lol those straps aren't pretty but they get the job done.  The block sits pretty tight to the backplate with very little play.  Unfortunately, the 6mm clips were too small.  I should have just bought them all.  I didn't want to clamp the cooler to the GPU either as the MP5works block has some curve to it and its only plastic... so I went with the straps.  They are easy to adjust and its just temporary .  I have some bigger clips coming so that should improve the appearance once in place.
 
The thing that really surprised me is that the GPU hotspot just kind of sits around 68-70C under 100% load without any overclock.  But then if I pop on a +100core/+1000mem, its still 70-72.  So that GPU Hotspot temperature vs GPU Temperature delta is really a headscratcher for me.  I have remounted the block 7 times at this point, have a full coverage backplate thermal pad and tried every kind of name brand thermal pad for the front (Gelid ultimate, gelid extreme, Thermalright, EVGA, optimus (fujiopoly), and I really just haven't gotten there.  So in that respect, I'm kind of at a loss.. but like you said it might just be a silicon lottery thing.  End of day, the card is still a rockstar so I can't complain too much
Carnage13
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/21 22:30:51 (permalink)
Just got my Kingpin a few weeks ago and after I broke her in, the card has been performing great. It's amazing the mods the people in this forum have done and has me reading through all the 44 pages. My kingpin from the second I turned it on started making this fridge like noise, after a few days the noise has disappeared and I'm guessing the air bubbles have subsided from the AIO. I'm incredibly interested in some of the mods I've seen in this topic so far or even repad work to get my temps down. 
post edited by Carnage13 - 2022/01/21 22:31:59
redteamgo
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/30 12:38:13 (permalink)
The 9th and final remount.  I outlined in white where you can see the nubs of the mp5works clips once the card is mounted back into the system.  I did end up removing the NVlink cap to get the top PCI backplate block clip a bit easier to get in place.  I might notch the NVlink cap at some point but right now, i'm indifferent.  I'm tapping out now, I'm satisfied and this probably isn't going to get much better than it is. 
 
If I were starting from scratch here is what I'd get:
 
* 2mm Thermalright odyssey pads for hydrocopper front
* 3mm Optimus full coverage pad for back
* 3mm Thermalright odyssey for inside of VRM area
* KPX thermal paste
* mp5works parallel block with 4 x 8mm clips
 
Avoid Gelid pads imo.  They are very hard and do not compress well at all.  Good luck peeps.  Below is where its at with this final remount.
 
 
 
 
PR 20x temperature highlights in C
Coolant: 30C
GPU1: 47.8C
GPU1 / Coolant Delta: +18C
GPU1 / GPU2 Delta: +1-2C
GPU Hotspot / GPU Memory Junction Delta : +3-5C
GPU Hotspot / GPU1 Delta : +15C
 
 
back:
3mm optimus thermal backplate
mp5works parallel block
4 x 8mm clips mounting the block
0.5mm pad from Mp5works block
 
front:
KPX thermal paste, finger spread evenly (not shown,sorry)
Thermalright 2mm on memory and VRM (VRM not shown, sorry.  Mounted directly to block)
Gelid ultimate 1.5mm x 2 stacked (3mm total) on area inside VRM
 


 


 

 

 
post edited by redteamgo - 2022/01/30 12:43:37
kraade
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/30 15:56:16 (permalink)
Redteamgo, Good write up, thanks
So, with the HC block on are the 8mm Clips catching the PCB? , I know there is no place for clips with the AIO shroud and I was not keen on grinding a spot out for them to fit like the other poster ,  I do have a HC block in my closet, 


redteamgo
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/30 18:51:42 (permalink)
Yes, the 8mm clips catch the PCB.  no other way to do it AFAIK
 
you can either notch the backplate, loosen the backplate so that the hooks catch, or keep the backplate flush and use the big clips that will hit the PCB
post edited by redteamgo - 2022/01/30 18:53:59
lol133736
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/01/31 02:03:50 (permalink)
that gpu backplate looks sick
kraade
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/02/17 16:09:17 (permalink)
should have my mp5works BPC here tomorrow


Jsunn
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Re: 3090 (Kingpin) - Get that backside VRAM cool! Also: Thermal Pad size (backplate side)? 2022/02/21 08:51:25 (permalink)
Hello All, 
I want to put new thermal pads on my Kingpin Hybrid 3090. 
Can you please help me with recommended thermal pad thickness for the front and back of the card? 
 
I will be keeping the stock cooler for now, but will eventually move to the Optimus KPE waterblock. 
 
From previous posts This is what I think the answer is:
 
FRONT:
VRAM: 2mm
VRM: 3mm???  
 
BACK:
VRAM: 2mm?
BACLK of GPU: ?
Anything else?
 
Thank you all!
 

i9 10900K @ 5.3GHz 1.35v 
32Gb 3600MHz
Asus Maximus Formula XII 
EVGA RTX 3090 Kingpin
Watercool all the things
https://builds.gg/builds/...ustom-built-case-26023
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