Yo guys !
long time no comments in this thread. Here goes an other one:
How much IOH-Core is recommended using a dual gpu card plus one physX plus on pcie sound card ?
This site says: " For this step, there are only two voltages you should play with; VTT, and IOH. IOH is easy, if you are running a single PCIe card (graphics card), give the IOH 1.3V, if you are running more than one PCIe graphics card, give it 1.35V".
That would mean in my case I would need about 1.4 V IOH-Core but I am running with 1.2 V