Mac Pro 2010 quad core, Mac OS X 10.6.8.
I have a USB 3.0 PCI card plugged in. When I tried to plug in a second external drive, I got this message:
I unplugged, and rebooted. Nothing plugged into the 2 USB 3.0 ports. I still get the message. Did I fry my card by just trying to use both ports? Any advice to troubleshoot this?
Edit - I just checked my eBay purchase history, the card is "Sonnet 2-Port Allegro USB 3.0 PCI Express Controller Card" and I bought it January 2014, so it ran pretty happily for almost 2 full years.
Final Update - After no luck with a couple reboots, I powered down, pulled the card, booted, powered down, re-installed card, then booted. No error message, card seems to function, although not nearly at the speed I thought I had. That's a different issue.