If any of you were looking at the whole backside VRAM temperature thing & thinking what you can do to really improve those temps in a few not-so-easy-but-only-required-once steps, you can do more pads under the plate, then do thermal paste & heatsinks on top of the plate, and get some pretty pawgers-level temperature reductions:
 

 
Those are peaks seen during a 36-minute stress test.  Middle is with pads between the heatsinks & backplate, as well as pads added under the backplate, the right result is with Kryonaut between the heatsinks & backplate.  And temps are listed in the order of GPU, GPU2, Mem1 Mem2 Mem3, Memory Junction Temp, PWR1-5 in order.  14.8C drop in Mem1 temp tells me Mem1 is almost definitely a backplate-side VRAM chip readout.  And Mem3 is definitely face/Die side, because it doesn't seem to be effected by this stuff much at all, I would assume that's all PCB heatsoak reduction resulting in slightly lower temps. 
 
Inforino on pad sides etc is in the thread I have going about all this craziness.  I'm doing all the different setup tests so others don't have to ^_^

Dabadger84

Carmen813
I have the o11 xl and recently swapped so my kingpin is top exhaust as push pull and cpu side intake as push pull. I feel like my temperatures are high, around 63c gpu die in time spy extreme looping with no oc. It will read 59 to 60c in x1.
Load is about 480w.

I have 2x 140mm intakes and a 120mm exhaust. I've got them with pretty aggressive profiles to keep fresh air flowing.

When I had my kingpin as side exhaust or intake it would hit 75c, the exhaust was getting trapped by rear side panel.

How are others doing in this case? My ambient is around 26c. I see some locking their voltages and wonder if I should try that, as mine will fluctuate up to 1.2v.

I am using l2n bios, never touched dip switches or classified tools.

What CPU are you running?  Also, with 26C ambient (that's pretty warm), I'd say 59-60C is warm, but not "hot".  With push/pull fans, in a high airflow environment in my case, and 70F (~21C) ambient, my card peaks at the 49-51C on the GPU readout range (few degrees higher on the Die temp), and that's with all the extra cooling modifications I've done with the extra thermal pads, heatsinks, etc, which has improved even the core/die temps slightly. 
So it sounds like your temps are within range of what they should be.
Keep in mind "GPU voltage", NVVDD & MSVDD are all GPU voltages, and they're all different.  What you see as GPU voltage is what you should be comparing numbers with others on if we're talking about a Voltage Frequency Curve in Afterburner.
Note that running an undervolt/OC would very likely help quite a bit with your temps if you're gonna go kind of low on the voltage side. I.E. running something like 2100MHz @ 1025mV (which should work for most people as that's pretty conservative on the clocks & undervolting side) should help with temps, power draw, & still give you better than stock performance numbers.

Could you give me a tip on how to undervolt? I assume that means I use frequency curve in someway but I find it pretty unintuitive.

Quick update... I finally got around to calling EVGA (for some reason the online submit question process did not work all week) and they are going to RMA it.  I was on the fence since it seems wasteful and the product is working well for now, except it is a major purchase.  Super impressed as always with EVGA's customer support.  Should have the new one late next week.

Carmen813

Dabadger84
What CPU are you running?  Also, with 26C ambient (that's pretty warm), I'd say 59-60C is warm, but not "hot".  With push/pull fans, in a high airflow environment in my case, and 70F (~21C) ambient, my card peaks at the 49-51C on the GPU readout range (few degrees higher on the Die temp), and that's with all the extra cooling modifications I've done with the extra thermal pads, heatsinks, etc, which has improved even the core/die temps slightly. 
So it sounds like your temps are within range of what they should be.
Keep in mind "GPU voltage", NVVDD & MSVDD are all GPU voltages, and they're all different.  What you see as GPU voltage is what you should be comparing numbers with others on if we're talking about a Voltage Frequency Curve in Afterburner.
Note that running an undervolt/OC would very likely help quite a bit with your temps if you're gonna go kind of low on the voltage side. I.E. running something like 2100MHz @ 1025mV (which should work for most people as that's pretty conservative on the clocks & undervolting side) should help with temps, power draw, & still give you better than stock performance numbers.

Could you give me a tip on how to undervolt? I assume that means I use frequency curve in someway but I find it pretty unintuitive.

With Afterburner, it's pretty simple, especially with the Kingpin.  Open up the program, hit Control+F to bring up the curve, then pick the point for the voltage you want to run (anything above 1068mV probably won't work because you're getting in to stock voltages which means the card will probably not listen to/stick to that voltage), drag it to the speed you want, click apply & then test it out.


Here's what my two sets look like:
 

 

 
What you're doing is commanding the card when it's at full 3D clocks to run at that speed, and that voltage, all the time.  The MHz may vary a little because of how GPU Boost works, but the voltage should be consistent unless you're hitting other limiters (power limit or temperature limit, neither of which should be an issue unless you're running something like Time Spy's 2nd Graphics Test that's stupid & downclocks anyway)

alexaqui
Quick update... I finally got around to calling EVGA (for some reason the online submit question process did not work all week) and they are going to RMA it.  I was on the fence since it seems wasteful and the product is working well for now, except it is a major purchase.  Super impressed as always with EVGA's customer support.  Should have the new one late next week.

That's fantastic to hear and why EVGA is known for their high standard CS. 

Any update on the KP Hydrocopper availability?

oldmanian
Any update on the KP Hydrocopper availability?

Nothing official.  Jacob noted they were delayed more than the FTW3 HCs, so looking like end of March, I'm assuming maybe April. 

fragility_V1

oldmanian
Any update on the KP Hydrocopper availability?

Nothing official.  Jacob noted they were delayed more than the FTW3 HCs, so looking like end of March, I'm assuming maybe April. 

Yeah, I haven't heard anything much either but HCs always came late to the game and add the ingredients of 2020, eventually they will get here.

Here's an image of a RTX 3090 Kingpin with Resizable Bar Enabled.
 

I too can confirm it works great on Gigabyte Aorus x570 Elite + Kingpin