There are 2 Dell power supplies that were used for different Inspiron models which have the same plug assembly and voltage, a 65 watt supply model PA-6 and a 90 watt supply model PA-9 . Some models ( for example the Inspiron 1100 ) shipped with a PA-9 . If a PA-6 ( or equivalent aftermarket supply ) is used in these models then the system might not boot at times.
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