USB 3.0 Problem with WD MyPassport 1TB USB 3.0
Hello all,
I have a Problem with my USB 3.0 Ports. I had an USB 2.0 external Harddrive which i used on my MacBook Pro 13" Mid 2012, but i needed a new one, so i bought a Western Digital MyPassport 1TB with USB 3.0. I also installed Tuxera NTFS because i bought the WD MyPassport in NTFS due to the fact that i use it on Mac aswell as on Windows. Now i read on the Apple Support page this:
How do I get the best performance from the USB 3 ports?
The first device you plug in will configure the port, so always connect USB 3 capable hubs or devices first.
What happens if I plug in a USB 2 device into the USB 3 port first?
If you plug in a USB 2 hub first, all devices connected or "daisy-chained" to that hub will operate up to the maximum transfer rate of USB 2 speed (480 Mbps).
I get now with my USB 3.0 MyPassport just write and read speed of an USB 2.0 device. (write/read +-35MB/s). I already tried my MyPassport on an Windows 8 PC with USB 3.0 Ports and there i get 85 MB/s read and 65 MB/s write. What is a huge diffrence.
I already tried to reset the USB 3.0 Ports with "Command-Option-P-R", but this also didn't solve the problem.
A friend of mine gets the same problem with an older version of the MyPassport (500GB) but also USB 3.0.
Does anyone has another idea what i could try to get USB 3.0 Speed on my Macbook Pro?
PS. I also installed the WD Turbo Drivers for Mac
PPS: I tested the Write and Read speed on my mac with xBench, Aja System Test and Blackmagic Disk Speed Test. All three gave nearly the same speed.
Diabolusz wrote:
Thanks for the answer, very appreciated.
Well sometimes i got 30 MB/s and sometimes 60 MB/s. I don't know what's happening there. Running the Blackmagic Disk Speed Test shows 60 MB/s, 2 minutes later it shows 30 MB/s ... But my Mac identifys the external Harddrive as USB 3.0 device ("up to 5 Gbit/s")...
...I bought it on Amazon, and i also read the review there, and nearly everybody is talking of speeds between 85 and 110 MB/s. So i would say that those 60 MB/s are not normal....
To your link: I got exactly that external HDD, just with 1TB. Thank you, i'll read the article
When you check out the article, look at the transfer rates as the file sizes get smaller.
My Mac Pro doesn't have built in USB 3.0 support but I've added a PCIe card and now it does. Using Carbon Copy Cloner to clone a drive to an external USB 3.0 WD MyBook, which has a 3.5" HD inside, I can watch what files are being transferred in CCC while I watch the transfer rate using the Disk Activity graph in Disk Utility. If I'm writing to the beginning of the disk, the files can fly by at close to 130 MB/sec if they're large and maybe 15 MB/sec if a bunch of them are very small. If they're going, instead, to the last partition on the MyBook, which is at the center of the drive, the transfer rate might be cut almost in half. I've tried something similar with a Seagate GoFlex external, and in addition to what I observed with the MyBook, I also found that when the GoFlex started to overheat (a common occurrence since it contained a Barracuda XT with no ventilation), the transfer rate dropped like a rock. I can't tell from the pictures if your MyPassport has any ventilation but that could be an issue too and might explain your finding with the Blackmagic Disk Speed Test (assuming that test doesn't intentionally change file size during the test).
In any case, while the USB 3.0 interface can theoretically deliver up to 5 Gbit/s transfer rate, there's no hard disk out there which can run that fast, although some SSD's might. And that applies to both the HD in the MyPassport and the HD in your Mac. Indeed, unless you've got an SSD in your MacBook Pro, it's a 5400 RPM HD, so even though the interface it's connected to is 6.0 Gbps SATA, the HD can't begin to saturate it.
Considering all the variables at work, the real answer may be "you can't get there from here."
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Please remember to come back and mark the post that you feel solved your question as the solution, it earns the member + points
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PepperonI blog -
K7N2 deltas mainboards have a problem with usb devices ??
Ok here is my problem..
I had installed WinXP Pro with SP1..
I got a 20 GB USB2.0 disk.i connected it on the both front or rear usb ports.
When i tried to transfer files to my usb disk or to my PC, in the middle of the copying, i got "Write Delay Failed" error and lost my usb connection..
I had to plug it out and in again..
Now, i have an DSL modem..Last night, i was disconnected from internet and my modem's lights gone..I plug it again, no lights..restarted my PC, also completely shutdown Windows XP..Again no lights..
Then, formatted PC and installed windows 2000 Pr and SP4, until now, my modem worked fine..But USB 2.0 ports are still no use for my usb disk...
In bios , it's enabled as USB 1.1+2.0..
I think this K7N2 deltas have a problem with usb 2.0 devices and Win XP Pro..
Some guys talking about, removing 9th wire earth, but couldn't understand which wire from where ? From mainboard or from usd device's cable ?
Those cables are fabricated, i think it's impossible ?
My processor is Athlon 2500+, ram Twinmos 512 DDR 400
Thanks for replyI'm also having this problem. It's happening with my USB flash disk. I was almost buying another one when I tried it with Windows Vista on the same machine and it worked ok, then I tried Arch Linux (with kernel 2.6.30.5) on another machine and got the same error. After that I tried Ubuntu and it worked ok. Seems that Arch's kernel doesn't like my USB flash disk.
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Is there a known problem with USB microphones?
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The mic works fine on all my other applications and is selected in system preferences to be the input of choice, and tests indicate it is recognized.
I changed the audio hardware selection in PrE to use the built in mic and it works as expected.
So I'm led to wonder if there is a problem with using a USB mic?
The documentation, referencing windows only, mentions plugging in a microphone to the microphone socket on the PC, not mention of a USB mic?
Any pointers to where I might find a solution?
ThanksThanks Neale, in particular for posting the images:
nealeh wrote:
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Then click ASIO settings and ensure your microphone is selected.
I believe I'm making a similar selection
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If you're having problems with USB ports, read on...
i'm reading that alot of people on here are having problems with their front (or top) usb on their cases not working with their k7n2 boards. i have come across the correct solution to this problem in one of the posts (after having solved the problem on my own), however noone has posted the solution by itself on this forum so everyone can easily see it.
The trick is to make sure that pin 10 (at least on a K7n2 delta-L), the pin labeled USBOC (USB Open Connection), is wired to NOTHING. If the connector to your front usb ports is fused into one giant connector and it HAS a wire that will connect to this pin (labeled GND2 or Shield or something), CUT THAT WIRE. Pin 10 on JUSB2 (at least on a K7n2 delta-L) must be OPEN. If this pin IS connected to something (even if it is only GND), the motherboard will think something is connected to this usb port and you will get many unknown devices listed in your windows device manager and the rest of your usb ports may or may not work.
As a general rule of thumb, if a pin on a motherboard is labeled OC for "Open Connection" and you wire something to it, you're asking for trouble.
If you cannot understand this you should not be attempting to wire a motherboard in the first place.
Here is a picture to go along with this discussion. If you cannot see this picture, I am sorry for it has probably been removed from the place I posted it online as I cannot attach pictures physically to this post. If someone here has a way to permanently host this picture and post it to this thread permanently, that would be wonderful.
In summary: all usb ports/headers have only four pins associated with it (VCC, USB+, USB-, GND). If the connector (whether it's one big connector or individual sockets) to your front/top usb port has 5 sockets, don't connect the 5th socket to anything. That goes for any case/motherboard combination. This is what i'm talking about above. I have no idea why motherboard and case manufacturers have a 5th pin involved in any way on either the pin or socket side. It is not used for usb.
EDIT: I just noticed this has already been discussed in the trouble shooting guide in the above sticky post. oh well, now we have a pretty picture to go along with it (i hope).:-D)Hello guys,
as promised I come back here to give the results of my tests... and I have to say that you saved my day (even if I had to open back 60 secured cases).
So the solution was the right one, when I unplugged the "ground" end of the front USB connector cable from the USBOC pin, those connectors finally worked as expected with USB 2.0 compliant devices.
So thank you really much for this very usefull information !
And even if maybe it's not only MSI's fault, I still believe that more information on those connectors in the user's manual would be really usefull (who knows what USBOC means except a few people and who could imagine that pluggin on it a "ground" cable would make it unserviceable ??). And who ever saw a user's manual bundled with a case ?? it's pretty unusual
Hope that someone at MSI will read that and take it into consideration, not for me (because now I'm aware) but for the thousands other consumers that will feel a little bit "annoyed" with that issue. I don't think that adding one line about it in user's manuals would be so much expensive
But I'm quite lucky myself... being able to understand and write english (even if I still have some progress to do ) gave me the possibility to find the solution... but a lot of my french fellows can't do that... and there's no french forum here... How can they do ? They rely on user's manual
Best regards,
Nicolas -
In iTunes the iPhone device icon will not show up whenever I plug in a USB into my PC but the iPhone icon will show up in 'This PC' so if anyone who knows a resolution to my problem with my iTunes or PC,it would really help me.I need at least Help or some Tips.I have already tried many things to iTunes and my PC like trying to restore my PC but that do anything.Also,would it be fine if i contacted (call) Apple Support? Please,I need help because what I think is wrong is my PC,iPhone,or USB might be messed up so if anyone could help me with this,it would be really helpful and for anyone to be nice enough to help me.
I think this article will help you.
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I cannot see what the version of iTunes is on my iPad and have gone into safari to try and download but not able to as it tells me iTunes is already loaded. I have the latest version on my laptop so I am stuck as to what to do next. Any suggestions please??Hi there Paula120,
You may find the troubleshooting steps in the article below helpful.
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http://support.apple.com/kb/ts1538
-Griff W. -
Hi, I have a problem with my ipad, I want to restore it but I can not. When I plug the ipad (off) it is not recognized by itunes, I turn the ipad, There are apple and the apple after you see the usb cable and itunes logo for just 1 minute and turns off and is no longer recognized by itunes.
thank you for your help.Hi there beni_m,
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http://support.apple.com/kb/ts3281
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http://support.apple.com/kb/ts1591
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