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Audio Dropouts with New (2018) Mac Mini [Solved -- Time Machine]
JimH:
Is the port USB 3.0? A USB 3.0 drive won't work well on a USB 2.0 port.
Dennis in FL:
I double checked the hardware and it is USB 3.0 all the way (Port >> Hub>>Drive and cables) The iMac has four USB 3 ports (compatible with USB 2) & two Thunderbolt 2 ports
HOWEVER.....when I did a Help/About/System on the Mac ... even though everything is USB 3.0.....the drive itself is showing up as a USB 2.0...but other drives plugged into the same USB hub are showing up as USB 3.0 !!! There is another drive showing up as USB 2.0 and it is a few weeks old and a USB3.0 connection
The other 3.0 drives are the same year and model number as the Time Machine drive .....this is crazy.
I need to investigate further - but I think you were suggesting the other way around....a USB 3.0 plugged into a USB 2.0 port.....and that's not the case.
Dennis in FL:
I did some troubleshooting. Since everything from port to drive was 3.0 I figured it had to be a cable. So I changed the cable of the drive showing up as 2.0 and amazingly it now went to 3.0 but another drive on the same hub was now 2.0. I changed the cable on that one....and this time it remained 2.0.
I tried rebooting and plugging the drives in one at a time.....This time a different drive was showing up as 2.0 and the rest as 3.0
Finally I unplugged only the hub and rebooted the computer. I also changed the USB port used from the Mac to the hub. When I plugged the hub back in...all drives were now 3.0
Weird !!!!
I know if you plug in a USB 2 device into a 3.0 hub first - the remainder of devices will all be 2.0 as well. But this wasn't the case here.
blgentry:
...and do you get dropouts when running a time machine backup, now that you have your TM drive set up as "true" USB 3?
Brian.
Dennis in FL:
I spoke too soon...some of the drives are still 2.0
I'm now looking at the cables.....I just ordered some extra fast 3.0 cables from Amazon and will try again when I get them.
I had audio dropouts on my TV when I played Dolby Digital and it was the cable. Got a better cable and all was well.
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