HT201538: Use Activity Monitor to read system memory and determine how much RAM is being used (OS X Mountain Lion and earlier)
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Q: My iMac 27in keeps cutting down every time I try to search Internet or just at idol screen please help
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Aug 28, 2016 11:24 AMby Carolyn Samit,Hi,
First, reset the NVRAM. Instructions here > https://support.apple.com/en-us/HT204063
If that doesn't help, reset the SMC. Instructions here > Reset the System Management Controller (SMC) on your Mac - Apple Support
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Aug 28, 2016 2:15 PMby BobHarris,And if the resets to not help, please tell us what resets you did, and if they generated any useful results at all.
But if the problem is continuing, then please post the EtreCheck output
<https://discussions.apple.com/docs/DOC-6174> or <http://etrecheck.com>
