I’m using the linked cooler from Amazon on my 14700K and it can do up to 350W at 97C at 70F ambient 30 minute CB23 run with an anti bend frame and Thermaltake TFX thermal paste. I also added Antec 30MM pull fans on the other side of the radiator.
https://www.amazon.com/gp/product/B0BWN1D94W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Awesome thermal performance for about 100 USD for all 3 components I bought for this off of Amazon.
On an MSI board make sure you’re using Auto or Adaptive and not Fixed.
LLC 4-7 work best to let the voltage drop under load. LLC 1-3 are best if you’re running a heavy overclock and need the top of your voltage limit to keep it stable.
If that doesn’t work reflash BIOS or load optimized defaults and start over with your settings.
Track VCORE with HWiNFO64 after applying a setting in BIOS. Run a benchmark and track the voltage under load.
Undervolting is the way to go. The clocks are so high that unless you’re running a 4090 at 720/1080P, overclocking or letting the PL run unlimited is not worth it.
I was able to get my 14700K stable at 1.19V at stock 5.5/4.3. Great performance and I can keep it under 80C.
My 14700K can do 5.7 all core at 1.31V and 5.8 at 1.37V. Huge jump in voltage and heat so 5.7P/5.0Ring/4.4E at 1.31V under load is about as far as I would want to go before going into crazy wattage/heat for minimal gains and flexing a higher clock.
under 80C at full 265-270W load. Gaming loads only get up to 120W max in games like Cyberpunk, less depending on the game @ 5.5/4.3 at 1.19V which is 40-50C