I have a custom built rig with a hp xw9400 mobo. I tried putting dual 2431 opteron CPUs in. It will boot up but when I try to install any os it will start to load the install but then it will immediately shut off. I have another build with the same exact model and make mobo running a single quad core and I'm running VMware esxi 6.5 just fine! Why won't my hexacore build work??