1.4v at the absolute most. With a decent cooler you should be able to easily keep it stable at 4.5GHz at that voltage. Speaking of which, which cooling unit do you have?
"Normally if given a choice between doing something and nothing, I’d choose to do nothing. But I would do something if it helps someone else do nothing. I’d work all night if it meant nothing got done."
-Ron Swanson
"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony
-Ron Swanson
"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony

), so any recommendations, i've 4 posts ago asked for one, and someone recommended me a NOCTU something like that, but there are just like 4 in my country online shop and aren't new.