Instability during overclocking without heavy workloads
Instability during overclocking without heavy workloads
Hello everyone! This is my initial experience with a new computer, and I'm facing some stability issues. I'd really value your assistance.
My main concerns are: suddenly, the RAM XMP profile triggers a boot loop around eight times before the system boots up. I removed the XMP profile (Corsair Vengeance 3000Mhz), but it's disappointing that I'm stuck at 2133Mhz. More seriously, the overclocking is inconsistent. Although temperatures are stable, after roughly eight minutes of stress testing, power spikes from about 120W to 230W without any changes in clock speed or performance. This behavior isn't typical for gaming or video editing sessions.
Additionally, there are instances where the system freezes completely during idle or low-load states. I attempted a DL game overnight, but it froze for approximately 10 to 15 minutes (just an example).
I have a Z390 with a 9900kHz clock and these settings:
- CPU Core Ratio: 4.8Ghz
- CPU Core voltage: 1.23V
- CPU C-states: enabled
- Enhanced CPU C-States: enabled
- Package C state Limit: C7
- CPU C7 Report: C7s
- ASUS MultiCore Enhancement: Auto
- AVX offset: 0
- IA Load Line (DC and AC): 0.01
- Power duration limit: 4095
- Power time window: 127
- Intel SpeedStep: Auto
- Turbo Mode: Enabled
- CPU Current Capability: 130%
- CPU Load-line Calibration: Auto
I believe adjusting the voltage settings might help. Any advice would be greatly appreciated. I'm assuming that making the voltage adjustment more flexible could resolve these issues.
Auto offset adjusted to a small positive value or Load Line raised again. Likely insufficient voltage for 4.8Ghz under heavy load (though it should self-regulate). Keep monitoring voltage and ensure it stays below 1.3. With MCE off, the system now employs standard boost configurations rather than boosting all cores.
Auto Load Line seems to assist you during high load and remain inactive during low load, staying close to stability with core voltage.
Raise CPU core voltage. 1.23 appears too low for all cores at 4.8Ghz.
Load Line will produce more voltage than manually set, so extra care is needed with a fixed core clock. Also avoid letting the CPU drop below necessary voltage when not in use. (This applies to me too, though my machine is mainly for gaming and occasional MS office tasks)
Please consider disabling the Load Line to find the accurate voltage for your clock speeds, or to adjust it manually. I'm unsure about the timing of BIOS settings, but I see options like "add voltage" and "lower voltage." Would setting it to 1V with an add option be better than lowering it by 0.24V? This CPU was modified during silicon testing, which might affect voltage handling. I also noticed Optimum Tech achieved high performance at 1.13V, suggesting this is typical for OC settings.
9900K
4.80GHz, 4.60GHz, 1.275V, 100%
9900K
4.90GHz, 4.70GHz, 1.287V, Top 91%
9900K
5.00GHz, 4.90GHz, 1.300V, Top 30%
9900K
5.10GHz, 4.80GHz, 1.312V, Top 5%
https://siliconlottery.com/pages/statistics
Don't believe everything you see on youtube.
I removed the 9900k from r/hardwareswap. For stability, I aim for 5.1 at 1.32V. Even if I increase the voltage to make it stable at idle, should I adjust the load line? Regarding voltage settings, what mode is best for a main computer? I’ve heard about add, subtract, auto, manual, and adaptive—reading says auto can handle any voltage, which might be risky.
Consensus is clear, a solid overclocking manual will be useful. Skylake through Coffeelake works quite similarly in terms of voltages and most settings. I recommend starting with a low load line if you plan to keep the core at 4.8Ghz, but aim for a core voltage around 1.28. This should maintain performance while adding stability. The CPU could be improved, but only actual testing will confirm it—and expect crashes if you push for the lowest voltage possible.
I searched online for guidance on achieving 5 or 5.1Ghz speeds and encountered many questions about selecting the right MB, cooling solutions, and board performance. I adjusted my settings based on someone else's 5Ghz configuration, reducing values to balance speed with stable, quiet operation. My SFFPC remains quiet even at maximum settings. I plan to modify my load line, increase voltage, and perform a stress test. For an ASUS Z390i, if manual voltage adjustment isn't ideal for low-load conditions, what's the best way to change voltage while maintaining stability?
Voltage adjustments.
Primarily introduces extra voltage on top of the current limits the CPU will handle automatically.
Also risky at the maximum setting, as it may cause the CPU to surpass safe operating levels.