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Questions about GIGABYTE products => Motherboards with Intel processors => Topic started by: Allanm on December 05, 2011, 04:08:51 pm

Title: Ga-z68ap-d3 USB problem
Post by: Allanm on December 05, 2011, 04:08:51 pm: Hi , I am newbie to this forum , and have a problem with getting my new build system to "see" my WD Passport USB Drive. Just keep getting "Usb Device not recognised and it shows in Device Manager as Unknown Device. Have tried all usb2 and usb3 ports all give the same result.

My Mobo is at the latest Bios level (F6) and I am running windows 7 64bit SP1.

The crazy thing is that on my older system , also a Gigabyte Mobo with Windows 7 64bit the drive works just fine ! I am guessing that I might be missing some BIOS setting , but having looked for days now , I am hoping for some help.

Allan
Title: Re: Ga-z68ap-d3 USB problem
Post by: Gloup_Gloup on December 05, 2011, 07:27:50 pm: Hi Allanm, ;)

Try on BIOS disable USB3 parameters.
Come back here for other comments.

Even if it's not your motherboard, I invite you to read this post. For the general understanding USB2-USB3.
http://forum.giga-byte.co.uk/index.php/topic,7428.msg58773.html#msg58773

Gloup_Gloup.
Title: Re: Ga-z68ap-d3 USB problem
Post by: Dark Mantis on December 05, 2011, 08:10:22 pm: Hi and welcome.

Is the problem that the motherboard isn't seeing the drive on bootup or is it not finding it during a Windows session as well ?
Title: Re: Ga-z68ap-d3 USB problem
Post by: Allanm on December 06, 2011, 12:16:08 am: Quote from: Dark Mantis on December 05, 2011, 08:10:22 pm
Hi and welcome.

Is the problem that the motherboard isn't seeing the drive on bootup or is it not finding it during a Windows session as well ?

Both - at boot it is not recognised, and when inserted into usb port after windows boot I get a usb device not recognised , pop up and Device manager show it under Universal Serial BUs Controllers as an Unknown Device.

I have tried Disable USB3 as suggerted in previous post , but results are the same .......
Title: Re: Ga-z68ap-d3 USB problem
Post by: Allanm on December 06, 2011, 12:21:02 am: Quote from: Gloup_Gloup on December 05, 2011, 07:27:50 pm
Hi Allanm, ;)

Try on BIOS disable USB3 parameters.
Come back here for other comments.

Even if it's not your motherboard, I invite you to read this post. For the general understanding USB2-USB3.
http://forum.giga-byte.co.uk/index.php/topic,7428.msg58773.html#msg58773

Gloup_Gloup.

Thanks for the reply and the info on USB ports , which I have read. Disable USB3 did not help with the problem.
Title: Re: Ga-z68ap-d3 USB problem
Post by: Gloup_Gloup on December 06, 2011, 01:49:36 am: Hi Allanm,

I find this article, Review: Western Digital Passport USB drive – how to get past format and write errors

http://tech.blorge.com/Structure:%20/2008/12/22/review-western-digital-passport-usb-drive-%E2%80%93-how-to-get-past-format-and-write-errors/

Extract : (Made a search of the pages.)
So I got out my trusty multimeter. Voila! Problem solved! Neither of the two computers on which I was testing this drive were putting out enough voltage to the USB cable.

Read the rest of the article.

Try it and come back here for comments.

Gloup_Gloup
Title: Re: Ga-z68ap-d3 USB problem
Post by: Dark Mantis on December 06, 2011, 06:46:08 am: I don't find that surprising Gloup_Gloup as there have been quite a few occurances of this and sometimes it has been helped by changing the cable and sometimes not. What you say would make sense.
Title: Re: Ga-z68ap-d3 USB problem
Post by: Allanm on December 06, 2011, 12:19:54 pm: Thanks Gloup-Gloup. Having trouble getting to your link, but in the meantime have ordered USB "Y" splitter to use 2 x USB ports to power the drive. Only cost a couple of quid! I am not techie enough to use multi-meter at the moment ;D
Title: Re: Ga-z68ap-d3 USB problem
Post by: Dark Mantis on December 06, 2011, 06:32:14 pm: It's worth a try Allanm but of course a Y splitter will only increase the current capacity not the voltage as it will just supply two lots of the same volts. As you said though for a couple of quid it's worth trying anyway.
Title: Re: Ga-z68ap-d3 USB problem
Post by: Allanm on December 08, 2011, 03:47:04 pm: Gents , Thanks for your support on this. I have now come to the conclusion that my USB drive is broken ! I rebuilt my old system today and when I tried my USB drive on this sysem it also failed. To confirm this is the case my friend who is visiting at the weekend is bring his drive ( Same type and model as mine) to put on to my system..

Thanks for your help with this.......
Title: Re: Ga-z68ap-d3 USB problem
Post by: Dark Mantis on December 09, 2011, 11:21:54 am: I wouldn't be surprised at that actually Allan as when they first came on the market we had quite a few failures on the forum here and nearly all were down to failing drives. Please do let us know the outcome though. ;)
Title: Re: Ga-z68ap-d3 USB problem
Post by: Allanm on December 09, 2011, 07:13:46 pm: Just completed my testing with a friends WD usb drive and it is working OK on my system. So problem is with my drive (or so I thought!). Decided to test the drive further by removing it from the casing , removing the small circuit board that connects to a standard SATA and power connection on the drive ( WD Scorpio Blue) and installed it in my system. And guess what it works!! I can only conclude that the fault is in the USB circuit board , but on the up side I have an additional 250GB drive in my system.

Allan
Title: Re: Ga-z68ap-d3 USB problem
Post by: Dark Mantis on December 09, 2011, 08:31:25 pm: If not the circuit board we had quite a few where the cable end (plug) wasn't going deep enough to make a connection. Might be worth checking.