| OS X - Operating System General OS operation information and support |
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![]() Member Since: Feb 03, 2009
Posts: 1
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Hi,
When I started up my iMac the USB ports stopped working. It didn't respond at all. The weird thing is that they work at the startup when you choose between Windows/Mac OS X when holding in ALT. They also work in Windows, but not in OS X. Does anyone know how to solve this problem? |
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![]() Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 32,386
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Mac Specs: 21.5" iMac 2.5 GHz i5, iPad 3rd Gen., 3 iPods
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Try performing the procedure as given in the following Apple KB articles:
Intel-based iMac, Intel-based Mac mini: How to reset the System Management Controller Resetting your Mac's PRAM and NVRAM Regards. |
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