Question regarding USB 3.0 port

Hello,
I just received an iMac 27" a few days ago. It comes with USB 3.0 ports. I have an external hard drive with USB 3.0 port and cable. I hooked up the drive to the iMac and the combination works fine most of the time. However if I leave the computer on during the day I always come back to the hard drive ejected error message. Seems like the computer eject the hard drive at random.
Any thoughts.
Thanks in advance.

See if it's related to this...
The 2012 macs (and later apparently) not waking normally from sleep after hours being in sleep. (noted here ...
http://www.xlr8yourmac.com/archives/feb13/022813.html#2012macswontwake
"Why 2012 iMac/2012 Mac Mini won't Wake After Hours of Sleep (Hibernates/Powers Off)")
The sleepimage file still reappears even if never slept. Delete it (hibernate off, etc) - within minutes its back.
A note on that here - http://www.xlr8yourmac.com/feedback/Chameleon_SSD_Optimizer.html
About iMac sleep...
http://forums.macrumors.com/showthread.php?t=1529750
Try this: "sudo pmset autopoweroff 0" and "sudo pmset standby 0"
http://xlr8yourmac.com/archives/sep13/091313.html#10.8.5SleepEjectTip

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Thank you,
This question was solved.
View Solution.

Hi,
Many USB 3.0 deivices can backward compatible but many USB 2.0 devices may have minor problem with USB 3.0 ports. Just keep the dongle on USB 2.0 port at this stage.
Hope this helps.
BH
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Morning All
The Set up - 1xXP PC running BTNP and 1xWin7 Laptop running MSE
1xBTHHV2.0B
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-+-No longer a forum member-+-

@ Roger.
Wow what a read!
Am I correct to assume that UDP transmissions are safe as they don't go anywhere as the firewall stops them? I'm still intrigued as to why various transmissions are attempted (ie. microconnect, BTVision, Binary Trojan maker etc etc etc).
Currently re reading yet again and will post regarding TCP...........
.............TCP has to make a connection? A packet is sent from A to B and back to A. It is then that data can be exchanged. A and B's serial numbers can also be exchanged. Then when they have a full 'duplex' connection, A and B can send data to the each other anytime they want. And all A has to do is just give the operating system some stuff to send?
That worries me or am I reading into this the wrong way?
-+-No longer a forum member-+-

Lenovo Thinkpad E530 - USB 3.0 Ports Not Working Code 10

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http://i.imgur.com/mKqWpFU.png
http://i.imgur.com/RLkbyHY.png
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Lenovo Thinkpad Edge E530 w/ i5-3210M
Lenovo Thinkpad X230t w/ i5-3320M
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Hi,
Can you try this
The Device You're missing drivers for (PCI\VEN_1022&DEV_7814&SUBSYS_380217AA&REV_01) is definitely for AMD USB 3.0, this one's off from AMD WEbsite
http://support.amd.com/us/gpudownload/windows/Pages/raid_windows.aspx#2
download the AMD Chipset Drivers see if that'll work.
Have you installed the energy management?
If not please install this as well, I'm thinking this is what the other device is for.
Lenovo Energy Management
emw7034.exe
21.4MB
Regards
Solid Cruver
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USB 3.0 ports not working in Pavilion G6 2144tx

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IPnaSh
First Spanish Community Guru - Colaborador ad honorem

Workaround for inability to scan on USB 3.0 port

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How would I test this out? Would blacklisting xhci-hcd cause ehci-hcd to be loaded automatically as its replacement?
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Last edited by 12qu (2014-07-27 10:37:11)

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Hi
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Where is the USB 3.0 port on the HP HDX X18T-1200 CTO ?

Does the HP HDX X18T-1200 CTO Premium Notebook PC have any USB 3.0 ports?
This question was solved.
View Solution.

No it does not. It predates USB 3.0 by quite a bit. You can add usb 3.0 ports with the expresscard slot and an add-in card.

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Hey guys,
When I connect my iomega usb drive to my usb2 port, it works fine. However – though it used to work before – when I connect it to my usb 3.0 port I get the following errors:
Feb 28 10:59:13 elefant kernel: [ 219.390214] scsi 22:0:0:0: Direct-Access OEM Ext Hard Disk 0000 PQ: 0 ANSI: 5
Feb 28 10:59:13 elefant kernel: [ 219.548833] usbcore: registered new interface driver uas
Feb 28 10:59:13 elefant kernel: [ 219.598091] sd 22:0:0:0: [sdd] 244188086 4096-byte logical blocks: (1.00 TB/931 GiB)
Feb 28 10:59:14 elefant kernel: [ 219.746744] sd 22:0:0:0: [sdd] Write Protect is off
Feb 28 10:59:14 elefant kernel: [ 219.746749] sd 22:0:0:0: [sdd] Mode Sense: 10 00 00 00
Feb 28 10:59:14 elefant kernel: [ 219.793651] sd 22:0:0:0: [sdd] Cache data unavailable
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Feb 28 10:59:14 elefant kernel: [ 219.891967] xhci_hcd 0000:02:00.0: WARN Set TR Deq Ptr cmd invalid because of stream ID configuration
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Feb 28 10:59:44 elefant kernel: [ 249.909031] sd 22:0:0:0: uas_eh_abort_handler tag 0
Feb 28 10:59:44 elefant kernel: [ 249.909038] sd 22:0:0:0: uas_eh_device_reset_handler tag 0
Feb 28 10:59:44 elefant kernel: [ 249.909042] sd 22:0:0:0: uas_eh_target_reset_handler tag 0
Feb 28 10:59:44 elefant kernel: [ 249.909045] sd 22:0:0:0: uas_eh_bus_reset_handler tag 0
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Feb 28 10:59:44 elefant kernel: [ 250.142147] xhci_hcd 0000:02:00.0: WARN: short transfer on control ep
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Feb 28 10:59:44 elefant kernel: [ 250.142282] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802dadf2340
Feb 28 10:59:44 elefant kernel: [ 250.142286] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802dadf2380
Feb 28 10:59:44 elefant kernel: [ 250.142289] xhci_hcd 0000:02:00.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802dadf23c0
Feb 28 10:59:44 elefant udevd[223]: worker [884] timeout, kill it
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Feb 28 10:59:44 elefant kernel: [ 250.373859] usb 3-1: URB BAD STATUS -108
Feb 28 10:59:44 elefant kernel: [ 250.373877] sd 22:0:0:0: Device offlined - not ready after error recovery
Feb 28 10:59:44 elefant kernel: [ 250.373950] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.373959] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.373964] sd 22:0:0:0: [sdd] READ CAPACITY(16) failed
Feb 28 10:59:44 elefant kernel: [ 250.373967] sd 22:0:0:0: [sdd] Result: hostbyte=0x01 driverbyte=0x00
Feb 28 10:59:44 elefant kernel: [ 250.373971] sd 22:0:0:0: [sdd] Sense not available.
Feb 28 10:59:44 elefant kernel: [ 250.373975] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.373980] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.373984] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.373988] sd 22:0:0:0: [sdd] READ CAPACITY failed
Feb 28 10:59:44 elefant kernel: [ 250.373990] sd 22:0:0:0: [sdd] Result: hostbyte=0x01 driverbyte=0x00
Feb 28 10:59:44 elefant kernel: [ 250.373993] sd 22:0:0:0: [sdd] Sense not available.
Feb 28 10:59:44 elefant kernel: [ 250.373997] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.374001] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.374007] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.374011] sd 22:0:0:0: rejecting I/O to offline device
Feb 28 10:59:44 elefant kernel: [ 250.374015] sd 22:0:0:0: [sdd] Asking for cache data failed
Feb 28 10:59:44 elefant kernel: [ 250.374017] sd 22:0:0:0: [sdd] Assuming drive cache: write through
Feb 28 10:59:44 elefant kernel: [ 250.374021] sdd: detected capacity change from 1000194400256 to 0
Feb 28 10:59:44 elefant udevd[223]: worker [884] terminated by signal 9 (Killed)
Feb 28 10:59:44 elefant kernel: [ 250.374103] sd 22:0:0:0: [sdd] Attached SCSI disk
Feb 28 10:59:44 elefant ata_id[2039]: unable to open '/dev/sdd'
Anybody an idea, what I could do about that?

The always on is not a USB 3.0, it is just a regular 2.0 port.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Forcing USB 3.0 port to act like USB 2.0 port?

Hello all! Firstly I would like to say that I am aware that USB 3.0 is backwards compatible, but that does not answer my question.
Long story short, I am attempting to use a logitech g27 controller through parallels, on windows 7, and it is giving me issues.
Based on the vast knowledge of the internet, I am under the impression that the USB 3.0 is causing compatibility issues, based on others peoples experiences.
Is there a way to explicitly make the USB 3.0 port a 2.0 port on my macbook air?
Thanks!

I will definitely keep this in mind as a backup as I would prefer to not have to purchase anything else. Thanks for the suggestion though!

Our HP 1150us g7 has stopped recognizing our dual USB 2.0 Port. It is not listed to uninstall and

Our HP 1150us g7 has stopped recognizing our dual USB 2.0 Port. It is not listed to uninstall or update its' drivers. Only the one USB port works on the right side facing the notebook.
It is only 21 days out of warranty and I am told they can be replaced however it takes a huge amount of labor, then someone else told us it can not be exchanged only the entire Motherboard. I have found the exact part on sale so I believe it is replaceable.
Here is a link to order the part we believe can be replaced.
http://www.machinaelectronics.com/store/buypart.cfm?pn=NL028516
Does anyone know if it is replaceable or not?
We are sick about this we only had the notebook one year and for the warranty to run out only 21 days before this died we are disappointed with HP for not providing some assistance.
This question was solved.
View Solution.

The link you provided is not the same model as yours. While it may work, I haven't verified it.
Have you performed any hardware troubleshooting on the unit yet?

Question regarding USB 3.0 port

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