USB ports refuse to work

I just set up my new iMac (Intel-based), version 10.5.8 (originally; after the customer support woman had me re-install the software, it shows as 10.5.6, but I am currently running software updates). It's great... except for the fact that I simply cannot use the USB ports. The only devices that work (and by work, I mean are even detected) via USB are the mouse and keyboard which came with the computer; nothing else works, including iPods. I have checked with the About this Mac, and have even run the USB Prober (belonging to the XCode developer tools), all to no avail. I have tried every single port, have reset the PRAM and NVRAM, and have re-installed the initial software. The problem is not with the ports themselves, it seems, because I can plug and play for the mouse/keyboard on any one; it's not the devices which I am trying either, since those work on my brother's MacBook Pro, and re-installing the software should have fixed any possible bugs there. I am out of ideas. I have done everything that customer support has suggested; the next step is taking it into an Apple Store to be looked at. However, I would like to use that as my last resort, since I am living in Spain (though the computer was bought in the US). This is incredibly frustrating, since it's brand spankin' new. The only time it has ever been opened was at the Apple Store (in the US) to transfer data from my old PC to this iMac, to set it up a little. Please help!

Hi hp1, welcome to Apple Discussions
In addition to resetting the SMC, you should also try: > http://support.apple.com/kb/HT1317
+1. Shut down the computer.+
+2. Disconnect all devices and all other cables, except the keyboard and mouse cable(s).+
+3. Disconnect the computer from the power outlet and wait for 3 to 5 minutes.+
+4. Plug the computer back in and turn it on.+
+5. Reconnect the device(s) (one at a time if there is more than one) and test. Test with each port if you have more than one.+
also see > http://support.apple.com/kb/HT1151
Dennis

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Hi SBrwn,
Thanks for visiting Apple Support Communities.
The symptom you're describing can be frustrating to troubleshoot as our options are limited. I do suggest resetting the System Management Controller (SMC) if you have not already. This step can help you regain use of USB and Bluetooth.
Follow these steps to reset the SMC on your iMac:
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
Shut down the computer. [by holding down the power button]
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
You can find these steps and more information at this link:
Intel-based Macs: Resetting the System Management Controller (SMC)
All the best,
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Bring it to an Apple store or AASP.

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Try to go into device manager and see if you have any yellow !s or red triangles near the usb ports. Remove all the usb ports and hubs and reboot the machine. The drivers should reload automatically. Do the hard reset by removing the battery, unplugging the power adaptor, holding in the power button for a full minute, putting the battery and power adaptor back in and try it again.
Reminder: Please select the "Accept as Solution" button on the post that best answers your question. Also, you may click on the white star in the "Kudos" button for any helpful post to give that person a quick thanks. These feedback tools help keep our community active, so you receive better answers faster.

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Part No.: Z0JH000TE RS

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If you have already tried this, contact an authorized service provider. The guys can try to fix this issue and it should be covered by warranty, if you still have warranty on this notebook. :)

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hey chris0277,
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USB ports refuse to work

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