My personal advice is to not use the Intelligent OverClocking tool, but use Custom instead. The OCC has been known to have glitches and IOC has not been stable for everyone. I would start with small increments with the Core Multiplier until you reach past its stable ability. Then dial it back to the stable setting.
Run a bench mark for each setting.
For example my older setup with an 8700k would run stable at a core multiplier of 47 custom, 43 default. Each system will be different. I found for me, core voltage offset did not help and I wouldn't recommend using it anyway.
Not sure that's the answer you wanted, but hope it helps.
Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".