I love these chips. Unlocked (-k suffix indicates that) multiplier, and stomping singlethreaded performance.
Clocks comfortably to 5.1ghz on water cooling (custom loop), and benchmarks are amazing.
That said, I have indeed burned one up after like 4 years of severe abuse in a heavily clocked system, and that's the first chip I've ruined in a long long time through abuse rather than mishandling or having a cooling pump/fan failure.
That said, the one issue that i've had with mine (both of them) is that they have zero thermal inertia--the temps can swing from 30 to 70C in a heartbeat, which suggests that the thermal interface material under the heatspreader (the lid, as it were) is kinda craptacular. I'm sure I should go through and delid it and replace it with something fancy, but if I only blow one up every few years, I can live with that. I'm of the mindset that you ignore temperature and pay attention to crashing and data corruption. Hot? Who cares :D
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Verified purchase: Yes | Condition: Pre-owned