Discovered I was shipped a wrong-value capacitor by Element14. Same physical size, but not the same electrical properties! Lucky I decided to use a 16 V-rated replacement or I may have never noticed. Would it have made a difference in the long term, who knows! This is the revision 1 mainboard, marked 01-01.

Matching physical size does not make two capacitors electrically equivalent. The intended capacitance still needs to match, while the voltage rating may be equal to or higher than the original where the replacement type and application are otherwise suitable.

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