The ocinside.de website has the following quote about using their Pin-Mod Guide.
Using the ECS K7VTA3, I don't have a BIOS adjustment for the vcore.Very important, if you've already an option to change the multi in your BIOS, you HAVE TO change this multiplier to "Autodetect" !!!
unless you just like to use the unlock function in the Pin-Mod guide) The same applies to the Vcore, please also leave the Vcore settings of your BIOS (if existing) at Default respectively at Autodetect if you like to change the Vcore with the Pin-Mod guide.
Please cut all L11 bridges if you like to select a Vcore with the Pin-Mod guide, otherwise you're just able to build a higher Vcore depending to the actual L11 bridge and Pin-Mod combinations.