Question Weird things happening with 9900k

[LUCKASS]

Hello there!
Something very weird is happening to me, here's the story : my friend and I wanted to make a 9900k direct die config onto the Ghost S1 (yes it's dumb), so we have some hardware in common : 9900k direct die (with same liquid metal and same direct die kit), stock bios settings, Big Shuriken 3 + NF-A12x15, Louqe Ghost S1.

Where it gets weird is our first boot : my friend has 31°C idle, I have 45°C ; after 30 min of P95 (derbauer recommended settings) he got 75°C max, and for 3 hours, he's in low 90°C, my cpu throttled over 100°C after just 3 seconds of test.

I re-pasted my liquid metal 2 times, with a little bit more, and then a little bit less, and my result is that it's getting worst every re-paste I make.
I checked and the die is making a solid contact with the cooler, I even tried different spacers for the bracket since Rockit Cool Direct Die Kit has alternative one for lowering the height of the cooler.

I even tried to stop the CPU fan when idle for 20 seconds, and the temps are getting the exact same (45°C), is that normal? 20 sec is not enough to make a difference?

SO...What am I doing wrong? Is it possible that silicon lottery affect temps even at stock speed? Motherboard can affect that much temps?

In fact I have the exact same problem has Jayztwocent in his last video of watercooling a ghost S1.

Here's some photos of my build :

Spoiler: Initial photo:

Spoiler: After my first re-paste with little bit more liquid metal (after removed the cooler to see the spread) :

Thanks for any answers!

 

[PacccLeader]

It can be one of three things
1: You got a bad CPU in the silicone lottery and yes it can affect processors even in the stock speed
2: You need to lower your motherboards voltage because a high voltage can cause high temps
3. Your cooler is bad. Air coolers can have bad finna rays and liquid cooler can have bad water flow.

Can you tell me your voltage, cooler and the number of fans you have?

 

[LUCKASS]

It can be one of three things
1: You got a bad CPU in the silicone lottery and yes it can affect processors even in the stock speed
2: You need to lower your motherboards voltage because a high voltage can cause high temps
3. Your cooler is bad. Air coolers can have bad finna rays and liquid cooler can have bad water flow.

Can you tell me your voltage, cooler and the number of fans you have?

So, yesterday I made some test and it's definitively the fact that aircooler are bowing to be in contact in the center of the IHS, I tried to tighten/un-tighten the screws of the cooler when my PC was ON to see the temps and as I see, when I move the cooler a little bit, the temps change drastically. I think it's linked that my air cooler has just 2 screws which may "unsecure" the contact to the die, I will try with a 4 screws cooler, like a watercooling to see if it's working.

To answer to your question, I'm not home currently, but my bios is stock I just locked turbo boost to 4.7 all core instead of 5 1 core, etc.. I have a NF-12x15 in the big shuriken 3, and then 3 more exhausting hot air (best design for the ghost s1)

Are 240aio equals? I mean is there better one than other? Which one could you recommend to me? 240? Or even 360mm external?