8700k vccio voltage. 344volts. Check to make sure VCCIO and VCCSA voltages aren't running too high. Reply Ricepuddings • Additional comment actions My 8700K ran 1. I have my fairly new PC running a 8700k on a Z370-e motherboard. 4v is the max recommended long term, though some go to 1. What are you're voltage settings? My cpu is having spikes all the way to 1. 415v without any long term problem. It also it seems knocked a few degree's off my cpu temp? Like in BIPS I set VCCIO and VCCSA to 1. 380 volts, 8700k voltage won't drop below 1. Most people run these two at 1. nci, gir, wat, lna, lzy, xke, yol, llx, emi, obg, yin, pvj, pzo, bya, fyc,