i think i might have solved it, i adds a scond psu to the mix and have it at 4.2 and runing no problems yet , i have the bestbuy brand 1000 watt powering the 6 drives and video card and have my 750 powering the mb and water pump and fans , the 750 is almost 6 years old but it is a name brand , i did crash after about 20mins of full load on intels stress test program, witch it way best that when i had it with just the bestbuy psu that would only last like 3 mins no matter what setings i had , having both was a major improvement, might have to pick up a nice 1200w psu later