danlent
I noticed the block also hits the three R15 things next to the power connectors. And needs multiple thickness thermal tapes. I just ordered more fujipoly. Hopefully will get this set up soon on my 2x kingpins. My extreme XII formula arrives tomorrow. 

Yes you are correct it does, i took one of my cards apart today and checked. Attached image shows when i applied a bit of thermal paste on those R15's your talking about and just laid the pcb on the block without even tightening it down with screws there was contact enough to squeeze out the paste. 
 
 

I went ahead and notched out a bit there with the dremel now as well. 

The ports flange on the block is also made in such a way that you can't even put an Nvlink bridge on unless you dremel off the end so it makes clearance to do so. I tried 3 different nvlink bridges and none would fit so i guess another modification was needed as well. 

Apologies in advance for replying to an old post, just wanted to thank sparetimepc and others who have posted here with advice, progress, and results. I've had a single KP card for a couple months now and have been hesitant to buy a Bykski block after having bad luck with modding an ill-fitting block previously (was careless/clueless and knocked a few MLCC off my previous 2080Ti, bricked), and the HC version is, obviously, tough to find and prohibitively expensive when available. I've now got a Bykski block on the way from AliExpress, so I'll be referencing this post when it comes in. From what I've read here, it seems like the only necessary mod (or, at least, the most recommended mod) is for additional clearance for the Mini DisplayPort ports. And since I'll only be running one card, I wont need any adjustments for SLI bridge clearance. I've ordered an LN2 kit so I may drill clearance for that, depending on how much I trust myself when it's all here. As for drilling clearance for the R15 inductors near the power plugs, I'll probably do the same as with the LN2 kit. 

Questions for anyone who has experience: 

• any specific thermal pad recommendations? I'm not sure what pads, if any, will be included with the block I ordered, and I have a sheet each of 0.5mm, 1mm, 1.5mm, and 2mm cheap pads from Amazon (advertised as 6.0 W/mK, but I'm not sure how accurate/relevant that actually is). I know sparetimepc mentioned that Bykski specified 1.2mm pads (and provided a link to the specific pads recommended, thank you) so if nothing else, I'll be looking into buying some 1.2mm pads to have on hand. Someone had mentioned needing various sizes, and if so, anyone able to clarify/specify what they needed around the card?
• the xDevs writeup by TiN notes that keeping the cold plate installed may be a good idea, but I'm assuming that the Bykski block will not need/fit it, as the pictures I've seen seem to show the core and memory contact points raised to the same level/height. Based on the pics posted by sparetimepc initially, it looks like he assembled that portion by only adding thermal pads on the memory modules (and paste on the die, of course). Not too keen on the idea of fashioning a copper shim to place over the core myself (as has been shown when using something like the EKWB VGA Supremacy block), so is anyone able to confirm that the Bykski block fits with/without any modification to that area? 
• If the idle temperatures shown are representative of their respective performance, it looks like the Bykski block has significantly lower delta-over-ambient / delta-over-core temperatures compared to both stock performance and results from the EKWB VGA Supremacy block/mod, so I'll try to record my current temps with the stock cooler to have a good reference point to compare to. The temperature sensors, as displayed in PrecisionX1, show the card as if there are no memory modules between the chip and PCIe slot, with memory modules installed in three separate rows surrounding the chip. Obviously, the actual configuration of the memory modules has a row installed directly between the chip and PCIe slot, with the "left" side of the chip being the empty side. In trying to understand which components and areas are related to each temperature sensor, is anyone able to describe the layout/labeling of the various sensors on the KP card? Example: the MEM1 sensor is shown over the left-side memory modules in PX1, but if the actual location of those memory modules is the top-side (between the chip and the 'K|NGP|N' logo on the card), should I assume that the MEM1 sensor is reporting the temperature for the location it shows, or for the actual location of the memory modules that it is labeled over? The main purpose for understanding this would be to determine whether it's my memory that is running warm, or the VRM component in the area in which the MEM1 sensor is labeled to be. As seems to be standard, my MEM1 temperature is always the hottest point, sitting at about 14-16c delta-over-core, but I am unsure of what part of the card or which memory modules that is actually reporting. 

Sorry for this post being so long; my specialty is breaking GPUs, not being concise  and thanks again to those who have provided useful info on this thread.

Ah been quite some time. I am still on my KP 2080 Ti and looking at the horrible prices of 3090 in EU (FTW3 being over 2k € so more than my KP was) I am sticking to this till next gen lol.

I personally only modded the mini DP ports and while the R15s do hit the block a bit, its not as bad as it is for others so I didnt bother modifying that (no LN2 kit for me though, not a thing in EU). I actually had a temp delta issue for a long time due to one of the threads being broken (got a new one sent and replaced, one of the main 4 gpu ones) and now with liquid metal I sit at 8C delta, still not great but I have a 2nd block too which I am too lazy to try because I would have to tear down a perfectly functioning loop, I dont get over 38C in my 24C room, but from quick test and inspection I should have 3C less with that "new" block. I also switched the original 1.2mm thermal pads on the mem to 1.5mm thermal grizzly ones (no issues, they squish enough to not interfere) and dropped 5C on mem except mem1 which dropped 8C (compared to the pads that come with the block). The mem temps are labelled the right way but on the card physically they are rotated basically or so I heard and found out eventually.

As for your 2nd question, only modifications you have to do is the mini DP ports. R15 if you want extra clearance and all that, like I said though, I didn't do that but you might as well do it.

edit: do be careful though, my 2nd block came with some new grey pads instead of black ones and they made my first fit that I tried a nightmare and had to throw them away, they wouldn't let me mount the block (either of my 2 ones) properly.

Hudson13
Apologies in advance for replying to an old post, just wanted to thank sparetimepc and others who have posted here with advice, progress, and results. I've had a single KP card for a couple months now and have been hesitant to buy a Bykski block after having bad luck with modding an ill-fitting block previously (was careless/clueless and knocked a few MLCC off my previous 2080Ti, bricked), and the HC version is, obviously, tough to find and prohibitively expensive when available. I've now got a Bykski block on the way from AliExpress, so I'll be referencing this post when it comes in. From what I've read here, it seems like the only necessary mod (or, at least, the most recommended mod) is for additional clearance for the Mini DisplayPort ports. And since I'll only be running one card, I wont need any adjustments for SLI bridge clearance. I've ordered an LN2 kit so I may drill clearance for that, depending on how much I trust myself when it's all here. As for drilling clearance for the R15 inductors near the power plugs, I'll probably do the same as with the LN2 kit. 

Questions for anyone who has experience: 

• any specific thermal pad recommendations? I'm not sure what pads, if any, will be included with the block I ordered, and I have a sheet each of 0.5mm, 1mm, 1.5mm, and 2mm cheap pads from Amazon (advertised as 6.0 W/mK, but I'm not sure how accurate/relevant that actually is). I know sparetimepc mentioned that Bykski specified 1.2mm pads (and provided a link to the specific pads recommended, thank you) so if nothing else, I'll be looking into buying some 1.2mm pads to have on hand. Someone had mentioned needing various sizes, and if so, anyone able to clarify/specify what they needed around the card?
• the xDevs writeup by TiN notes that keeping the cold plate installed may be a good idea, but I'm assuming that the Bykski block will not need/fit it, as the pictures I've seen seem to show the core and memory contact points raised to the same level/height. Based on the pics posted by sparetimepc initially, it looks like he assembled that portion by only adding thermal pads on the memory modules (and paste on the die, of course). Not too keen on the idea of fashioning a copper shim to place over the core myself (as has been shown when using something like the EKWB VGA Supremacy block), so is anyone able to confirm that the Bykski block fits with/without any modification to that area? 
• If the idle temperatures shown are representative of their respective performance, it looks like the Bykski block has significantly lower delta-over-ambient / delta-over-core temperatures compared to both stock performance and results from the EKWB VGA Supremacy block/mod, so I'll try to record my current temps with the stock cooler to have a good reference point to compare to. The temperature sensors, as displayed in PrecisionX1, show the card as if there are no memory modules between the chip and PCIe slot, with memory modules installed in three separate rows surrounding the chip. Obviously, the actual configuration of the memory modules has a row installed directly between the chip and PCIe slot, with the "left" side of the chip being the empty side. In trying to understand which components and areas are related to each temperature sensor, is anyone able to describe the layout/labeling of the various sensors on the KP card? Example: the MEM1 sensor is shown over the left-side memory modules in PX1, but if the actual location of those memory modules is the top-side (between the chip and the 'K|NGP|N' logo on the card), should I assume that the MEM1 sensor is reporting the temperature for the location it shows, or for the actual location of the memory modules that it is labeled over? The main purpose for understanding this would be to determine whether it's my memory that is running warm, or the VRM component in the area in which the MEM1 sensor is labeled to be. As seems to be standard, my MEM1 temperature is always the hottest point, sitting at about 14-16c delta-over-core, but I am unsure of what part of the card or which memory modules that is actually reporting. 

Sorry for this post being so long; my specialty is breaking GPUs, not being concise  and thanks again to those who have provided useful info on this thread.

Glad this thread is still being useful it's been a while for sure. Hope it all works out for you. Bykski uses these pads on pretty much all of they're gpu blocks, they are 2.2mm

https://www.bykski.us/pro...id=e03056ca7&_ss=r

I now I am to late just want to ask how is the card doing 

Amazing what water does