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Hello folks! Does anyone of You know the shutdown temperature limit value? Corsair HX series have an over temperature protection for certain. I sold my HX450 (11 years old) in August. The buyer replied that the PC he has built (Phenom, integrated graphics - thus no extreme load) shuts down when his case is closed. It is OK when he opens his case. The PSU is located at the top. I have a 600T case, PSU mounted at the bottom. Breathing air from outside. I've never suffered from this problem. I've upgraded to HX650 (also older one). No problem either. But when I turn the PSU upside down (so it intakes hot air) it also shuts down after a while. But I have much more power hungry HW. In fact the HX450 could be quite at its limit for years (about 10000 hours total). But I dont think that temperature protection should be such sensitive. I would expect intervention at temperature around 80 °C. But I have aroud 45 - 50 °C in my case. Thanks, David.