I was fiddeling with the performance settings of my NUC5i5RYH / BIOS:
Date : 06/04/2018
Vendor : Intel Corporation (www.intel.com)
Version : RYBDWi35.86A.0370.2018.0604.1034
-Board-
Name : NUC5i5RYB
Vendor : Intel Corporation (www.intel.com)
and run into following problems:
The 'voltage offset' settings in Visual Bios under 'performance' tab are not respected after saving.
You can set whatever you want with no effect - except the voltage offset setting for graphics.
With intel XTU tool you will see then after boot into windows that no offset which was previously set and saved in bios is applied - except the one for graphics. Other hardware info tool do confirm this.
If you set a value less than '-0.5' e.g. voltage offset with XTU for one of these values (core / ring (uncore) / graphics: change together to same value in XTU) the NUC will crash and recover in BIOS.
So you can set offset value for with XTU but not in BIOS (exept the offset for graphics).
'RealTimePerformanceTuning' on/off does not affect this issue.
Next issue ist the scaling in BIOS for all negative offset values:
It starts with '-0.5' and continues with '-0.10, -0.15, -0.20...' till '-0.50' again!
The lowest possible negative value should start with '-0.05' not '-0.5'.
Using positive Values the scaling is correct.
EDIT:
- Same issues with BIOS Date : 07/09/2018
Version : RYBDWi35.86A.0371.2018.0709.1155
- only lowest negative value affected with wrong scaling of offset values