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FYI, I started a tac request and they're doing and RMA because, as the Tech said "I'm plenty sure the hardware is failing"so return your equipment if possible.
I just received my ASA 5510 and rack mounted it. Experienced the fan situation you have described here and have pulled it from the rack and desktop mounted it just in case... I have not found a way to keep the temperature correct so as to keep the f...