Your temps, and subsequently your required voltage, is getting too high. Based on the numbers you showed earlier, this CPU when de-lidded and using proper cooling, should be able to do 5GHz below 1.4v and in the 50c range.
If you give the computer to a friend, you're wasting the chip. Ether use it for your own build, or sell it off for $$ to an enthusiast. The chips are worth a good bit. Before I bought my chip (which is not as good as yours) I was looking to pay $600-$700 for a 3770k that did stable 5GHz at 1.4v or lower.