As we have discussed many times the t5500/7500 first CPU fan cooler this is about the 2nd. I noticed an intermittent squeal sound and assumed it was the primary CPU fan that I jerry-rigged. Cleaned it out remounted and this time started it up with it open. Immediately it was apparent it was the stock 2nd CPU fan. I pulled it and can feel the internal resistance when turning by hand.

The problem is it's a proprietary dell plug and the only other fan I have is the other two internal fans mounted in the front that are much bigger (120mm vs 92?) that have the same pin/connector. If I pull on the blades assembly its firmly in there, doesn't look like it was designed to be maintenanced.

I haven't looked up a replacement yet, I'm sure they're out there, hopefully reasonably priced.



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