X870E-E M.2 rubber position on M.2_1 slot?

[marcel151]

I recently got a WD_BLACK SN8100 NVMe SSD with PCIe 5.0 support. To get best speed I want to install it correctly. It obviously has to be placed in M.2_1 slot since I don't want to share PCIe lanes with the GPU. My questions is where to put the rubber. I looked in the manual, it says to install it on the 2260 place, but it also shows a 22110 slot, which M.2_1 isn't.   

See following photo of M.2_1 slot. Is it true to have the rubber be placed in 2260 place on the right side of the SSD (green square)? I rather would place it in the middle 2242 place of the SSD (red square). Please advice.

[ilhass]

I placed the rubber in both places. After that, I had to push hard to lock the SSD radiator in place (Samsung 9100) I think it is necessary to leave only one, which is further from the port. Because the one closer to the connector causes excessive pressure on the SSD. In general, Asus should write more clearly which slot this rubber should be inserted into.

[nemen]

the rubber support makes zero performance difference wheter its installed or not

[Galactob]

I didn't put it on my 9100 at all because I saw that it was bending and I was afraid that it might not fit well on the thermal pads.

[marcel151]

I tested putting it in the middle and also on the right side like ASUS recommends. On the recommended side, temperatures are way better. Don't know how they would behave when using no rubber at all.

[Galactob]

 What temperatures are you seeing now? I've seen the maximum on the 9100 58 degrees. Works smoothly 46- 49.  I believe with these black ones it won't hold up well to the lower thermal pads it has. 

I finally installed the pands on both the top and the other one I have below graphics card the gen4 samsung 990 pro . They seem more stable now without any gaming. I've seen an improvement of one or two degrees in temperatures. But I think it will help with heavy loads.