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Z790 Apex RAM OC

Level 7

Hey community

Sorry for my bad English.
I have a question about the RAM OC on my Z790 Apex. My goal is to make the latency of the RAM as low as possible, ideally a maximum of 50 ns.
CPU: 13900KS
RAM: G.Skill 7200 2x24GB (from QVL list)
2x 420 x 45 radiators and 10 fans
additional RAM cooling
CPU: EKWB cryo cooler with Peltier element
What is the process for the OC.
1. How do I set the P-Cores and E-Cores?
2. How do I set the V-Core of the CPU? Should I use a fixed value or adaptive mode?
3. How do I set Adaptive Mode correctly? Sign "+" or "-" and which value should I use? 0.03 - 0.05?
4. How much MHz RAM would you recommend for stability.
5. What timings are important for low latency?
6. How should I begin? Set XMP I and CPU at the same time or one after the other?
I would like to say thank you very much for your time and your help.