I work with two LaCie external HDD's, using FW800. Today, the imac doesn't mount any of the HDD. It makes no difference, wether I use them together or alone, the HDD starts, but doesn't mount. When I use the usb-port, the HDD is connected and works.
Is there a solution to fix the problem?
Steve
iMac (27-inch Mid 2011), OS X Yosemite (10.10.1)
Hello Steve,
Thanks for using Apple Support Communities.
To troubleshoot this issue where your external hard drives will not be recognized when connected via FireWire, please follow the Top Troubleshooting Steps section in the article below.
USB and FireWire Quick Assist - Apple Support
Take care,
Alex H.
There may be a power related issue, that may (or not) be resolved by use of the
System Management Controller - reset - since that may affect a Mac's port power.
•Intel-based Macs: Resetting the System Management Controller (SMC) - Apple Support
Do you have any other FireWire products that may be used to test the internal FW ports?
Is there any indication of FW items attached to their respective ports, in the system profile?
Hopefully the issue is easily resolved, and is not an iMac hardware problem.
Good luck & happy computing! 🙂
imac2011 firewire800 doesn't mount an external HDD
