These voltages are within normal ranges for your i9 9900k with 5GHz support.
These voltages are within normal ranges for your i9 9900k with 5GHz support.
You're dealing with a common setup challenge. Your i9 9900K OC running at 5GHz can indeed trigger BSODs when Vcore drops below 1.34v, even if VID voltages are higher. The Gigabyte guide you followed likely didn't account for the specific voltage targets needed for stable operation at that frequency. Setting LLC to Extreme might be pushing things too hard. Consider lowering it slightly or sticking to Auto unless you're certain it's safe. Always test with a multimeter and monitor closely.
I think the setup holds steady at 1.34, all tests passed. Concerned about the VID cores being significantly higher at 1.42. EDIT. After testing with Cinebench R20, it appears those VID voltages align more closely with my vcore voltage, possibly making this update unnecessary!