Hi folks, I have just upgraded from an R5 1400 to an R5 2600, got my money back £60 for the 1400 (Ebay) and purchased an R5 for £119. Been using it for a week now nice improvement overall. Now I've been monitoring the boost speeds and I thought it would only boost to 3.9 but I'm getting speeds up to 4.4ghz. Is this to do with thermal overhead? I have a very good aftermarket cooler. At these speeds its sitting at 54c at load.