Question AIO screws won't tighten - what's the problem?

[Stefan Braun]

I'm currently building a new PC and now my Motherboard is in the case. I installed the backplate and mounting bridge and mounted the radiator on top of the case. Now I want to screw down the cooling block onto the CPU, but it doesn't work...
It has two screws and one does tighten, but the other one does not. If the upper screw tightens, the other one won't (and vice versa) even when trying for a minute - it just won't budge. I checked combability of my Silent Loop 2 cooling with the Ultra 7 265KF and my Mainboard - it's listed as compatible.
Why does only one screw tighten? It can't be the screws themself, since both of them will tighten in some way - just not both at once.
Edit: I also tried to only tighten one of the screws a little but the other one still won't budge..
Edit 2: Some pictures of the situation here...

https://imgur.com/a/f2WrSzz

View: https://imgur.com/a/f2WrSzz

 

[Lutfij]

View: https://youtu.be/W7lCsjoVO7A?t=451

The screws are spring mounted, you should hold down the pump and with some pressure on the screws alongside a screwdriver, you should be able to start the threading on both ends before applying some pressure to mount it down properly.

For the sake of relevance, can you take a picture of the AIO's box showing it's list of compatible sockets/platforms?

Moved thread from CPUs section to Cooling section.

 

[Stefan Braun]

For the sake of relevance, can you take a picture of the AIO's box showing it's list of compatible sockets/platforms?

https://imgur.com/a/PXokjXt

View: https://imgur.com/a/PXokjXt
- Photo

The screws are spring mounted, you should hold down the pump and with some pressure on the screws alongside a screwdriver, you should be able to start the threading on both ends before applying some pressure to mount it down properly.

I tried to that, but only one screw will tighten, the other one won't and some noises can be heard from the screw (or spring)
Edit: Just noticed the image is a bit blurry. I have a MSI Z890 Tomahawk WiFi and according to the CPU cooler check on the website, it says fully compatible.