Dabadger84

anchang233
Whats your MEM temp during mining? Also which MEM readout is the backside?

I don't really do mining.  I tried it out previously, and the junction temp peaked at 82-84C during Ethereum mining.  That was with the first-try of the heatsinks (just the small silver ones) with a fan on it.  So I would assume they'd be slightly lower now.  Keep in mind, The Memory Junction Temp is always a fair bit warmer than the iCX Memory readouts, because (we think) the Junction Temp is from inside one of the memory chiplets, so it's an actual internal temp.
I would assume the hottest of the 3 temps are the backside vRAM (so Mem2) - it only makes sense, but I don't know that for sure.  I was really hoping Buildzoid would touch on it during his PCB analysis, but he didn't point out any of the iCX sensors on the Kingpin :(

Dabadger84

anchang233
 
Hmm that's pretty good. The Strix/Gaming X Trio is at or above 90C according to HWINFO, FE is above 100C constantly, so that's pretty good improvement with the hybrid.
 

I assume that's junction temp?  That's partly the Hybrid Cooler & partly the heatsinks, I had the first set of silver heatsinks on while doing that mining test to see what my temps/load wattage was like.

Dabadger84
So apparently backside vRAM thermal pads are supposed to be 2mm... I'm going to order 1mm (for the backside of the GPU die, I think that will be the right size), 2mm & 3mm, with a little 1.5mm as well just in case.
That's more than I planned on spending on the thermal pads, but at least I'll have a little bit of everything in case I need it.

Dabadger84

Clovis559
Yo, I wish I had a more scientific way to measure these for you:

 
I actually tried stacking them, but the performance vs the Ziitek pads on the front wasn't.. mind blowing. Ziitek makes 11 W/ mk pads, and so the pads you have might be good, who knows.
 
I think next time I would just go with the brand that makes a 2mm. Fyi the pad behind the GPU is shorter.
 


Hope that helps

Yeah I figured the GPU-die specifically needs to be thinner cuz the stuff on the back is pretty thicc.
 
So the memory specifically is 2mm?  I'm guessing the memory chip themselves are like .5, meaning I might need 2.5 for the areas not having chips... but then the VRM areas do have the little other things on the back so maybe 2 would be okay?
 
I think I'm just gonna buy 1mm-2mm-3mm and go with that.  I don't want to get the backplate off until I have the pads to replace any I might mess up, so I'll just get some of each & hope that covers everything.
 
I'll look up the Ziitek ones, probably get some of that too.  I'd rather have too much than not enough.

Dabadger84

Clovis559
Don't judge this picture! I'm fixing what you see coming up here, The plate currently sits about 2mm away from the memory because it's pushed out on the edges. I didn't cut the thermal pads right. Luckily I didn't because it looks like at the top I almost hit something.
That should leave the middle at 1mm , but instead I had to use 2mm of pads in the middle. 
 
snip
 
But I don't like guessing. You know, if we keep getting crazy with stuff we'll need measurements. I bought one of these just now: https://www.amazon.com/gp/product/B017KUC6XQ/ref=ox_sc_act_title_1?smid=A1JAAL829ACROK&psc=1
I can get us better measurements on Friday.
 

Wouldn't it be prudent to figure out what size you need in the other areas & just put pads everywhere under the coldplate to avoid any possibility of contacting something with the memory plate & shorting it out?  Like just doing 1mm everywhere else just to make sure shorting doesn't happen I mean. 
I'm really curious if I'm actually gonna need that 3mm for anywhere under there.  If not, I'll figure out a use for it :-D might redo some of the cooling areas on one of the two laptops I got goin' since they're back to "repairing trust factors" on CSGO accounts again.  

Dabadger84

Clovis559
 
That’s why I got the measuring tool, because right now I’m eyeballing it with a ruler. Hopefully I’ll be able to measure everything on the back, share, we can and go from there! Then design what ever craziness we’re going to design.

I might pick one of those up myself depending on how sketchy things are once my thermal pads come in which will hopefully all be here by Tuesday.

_Gir_
I've noticed that the messaging about pad size is inconsistent from EVGA.  I am starting to think that sometimes they're just giving us the clearance between parts and we should size up appropriately for decent pad compression.  Or sometimes it's for the pads they use which will likely have different firmness/density than what we'll purchase aftermarket.