HT1349 When I start my I Mac desktop the fan keeps running loudly.  Can't get it to turn off.

When I start my I Mac desktop the fan keeps running loudly.  How do I get it to stop?

Hello there, Jacquefromaz.
The following Knowledge Base article reviews the steps to perform a reset of the System Management Controller (SMC):
Intel-based Macs: Resetting the System Management Controller (SMC)
Thanks for reaching out to Apple Support Communities.

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