Are ambient temperatures and overclock stability consistent, similar to day and night?
Are ambient temperatures and overclock stability consistent, similar to day and night?
Hello! I'm not unfamiliar with overclocking, but I'm still learning a bit. I have some doubts about the correct answer to my question, and I was hoping you could assist me in keeping my mind clear.
Recently, I achieved a stable overclock on my 10900k to 5.1ghz all core. It performed well for two hours of RealBench (using 16GB RAM, not 32 because it's not supported), P95, and everything was functioning nicely. However, today I encountered an L0 Cache error in HWinfo64 while running RealBench.
Here are the details of my stable overclock at the time:
10900k
Asus Z490-E gaming Mobo
2x16gb G.Skill Trident RGB 3600 CL18 RAM with XMP II enabled
Arctic LF 420 AIO cooler in push-pull mode
Offset mode
SVID: Best Case
LLC = 5
vCore offset = +.035
V/F offset at 51x = +0.030
BCLK aware adaptive = disabling
BCLK Spread = disabled
MCE = Enabled
All other BIOS settings were set to Auto
Voltage under load in RealBench (typically the same as P95 with AVX disabled) = 1.332v
Temperature under load: average 78/79°C, max 82°C
Ambient temperature was around 23°C during stable testing, but today it reached about 28.6°C.
During the day when it's warmer, I ran the overclock again and within ten minutes I experienced an L0 Cache WHEA error in HWinfo64.
The only change today compared to yesterday was the temperature—23°C was stable, now it's around 28.6°C. This difference might have influenced my overclock stability. My assumption is that at 23°C, the settings were just barely stable. With the warmer ambient temperature, did it push the system toward instability? I think the 5°C increase could have shifted things from stable to unstable.
After further investigation, it appears this impacts stability. 80C seems to be the point where exceeding voltage requirements becomes necessary compared to cooler conditions. The shift in ambient temperature from high 70s to low 80s has changed things. The 1.332v under load in RB isn’t sufficient for daytime operation when temperatures rise. However, once night falls and it’s around 22C, my overclock remains stable. This raises the question: should I increase voltage or avoid stress tests when temperatures exceed 27C (80°F) indoors? I think it would help to figure out the extra voltage needed for stability during warmer days while running Realbench.