Need help with overclocking at 9900k? Let me know!
Need help with overclocking at 9900k? Let me know!
You're running your OC 9900K at 5.0GHz with stable performance at 4.8GHz across all cores. You're aiming for 4.9GHz and are seeing instability despite a vcore of 1.25. The cache ratio is auto and currently set to 4300MHz, which seems too low for smooth operation. Raising it closer to the core clock (around 500MHz) could help stability. Consider adjusting the cache ratio to a higher value if needed.
Search for signals between 300-500 MHz. Keep in mind that additional cache clocks need higher voltage to remain consistent, as the processor handles more tasks quickly.
Over time I achieved stable performance around 5.0ghz with cache enabled and vcore at 1.295v. It handles 80-85°C under heavy load without issues. While I aimed for 5.1, it was fine. My 1080 Ti also reached 2088mhz under stress and stayed at 45°C or less. UserBenchmark rated my GPU at 151%, placing it in the top 1% of owners. Lucky guy!
You're on the right track at that temperature where 85°C is sufficient. Good progress. Continue refining. Add a slight cache tweak—aim for maintaining 1.2950v and achieving a stable 4.5 to 4.7ghz.
I worked really hard to improve cache speeds, but it still won’t auto-act. I even increased the voltage by 15 mV without fixing the issue, and still face BSODs. I don’t want to raise the voltage further. This CPU seems to be stuck—soldered in place. I’ve seen my old 7700k drop about 20°C with a 200MHz jump to 5GHz, which worked fine. I’m happy with what I have now.
Updated! I purchased an EK velocity WB, a 240mm slim radiator, and am linking my CPU to the GPU cooling system. I'm also removing the solder. Moving forward, I'm thinking about using direct die liquid metal. Plus, I might be able to reduce the die size by 0.1mm to 0.3mm. Looking for a 5.4GHz all-core processor. I'll share my progress in another thread as things develop.