[access-uk] Re: USB connectivity
- From: "George Bell" <george@xxxxxxxxxxxxxxxxxxx>
- To: <access-uk@xxxxxxxxxxxxx>
- Date: Sat, 31 Jul 2010 16:21:36 +0100
Hi Andy,
Silly thought perhaps, but is this a system with USB ports front and
back? And might you be using the front ones to try the drive out?
If so, try one of the back ones.
George.
-----Original Message-----
From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On
Behalf Of ANDY COLLINS
Sent: 31 July 2010 14:50
To: access-uk@xxxxxxxxxxxxx
Subject: [access-uk] Re: USB connectivity
Hi George - It is a desk-top, about 5 years old, it came with XP
installed,
so I wouldn't have thought the USB connectivity should be a problem,
not
being desperately ancient! I did try a portable drive of my own on his
machine, and it produced the same problem.
Andy
----- Original Message -----
From: "George Bell" <george@xxxxxxxxxxxxxxxxxxx>
To: <access-uk@xxxxxxxxxxxxx>
Sent: Saturday, July 31, 2010 2:09 PM
Subject: [access-uk] Re: USB connectivity
> Hi Andy,
>
> All I can think of is that it may be a very early USB 1.0 and the
hard
> drive is just being pig-headed about it. (See explanation below)
>
> If it is a desk top, perhaps consider adding a USB 2.0 expansion
card.
> They won't break the bank.
>
> George.
>
> What is USB 1.0?
> It is basically the first standard definition of USB it supports a
low
> speed rate of 1.5 Mbit/s. It is intended primarily to save cost in
> low-bandwidth human interface devices (HID) such as keyboards, mice,
> and joysticks.
>
> What is USB 1.1?
> It is the next generation of the USB Devices. It supports full speed
> rate of 12 Mbit/s. It is very similar to the previous standard
except
> each bit transfer is 8 times faster. All USB hubs support full
speed.
>
> -----Original Message-----
> From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On
> Behalf Of ANDY COLLINS
> Sent: 31 July 2010 13:53
> To: access-uk@xxxxxxxxxxxxx
> Subject: [access-uk] Re: USB connectivity
>
> Hi George, Barry, and anybody else that has or can help.
>
> Here's an update on my friends problem installing a Western Digital
> USB
> portable drive to his XP machine.
>
> When first connected, the 'found new hardware' wizard launches,
> searches for
> and seems to find the required software, and does seem to actually
> install,
> but after clicking on finish, a message pops up saying an error
> occurred
> during the installation, and the installed device may not function
> properly.
> It doesn't give any clues as to what the error is!
>
> So, although it appears to have installed, the drive isn't showing
up
> under
> My Computer, although when we look under 'serial bus controllers'
> under
> Device Manager, it is there called 'external hardware device.'
>
> His machine has service pack 3 installed, so the driver software
> should be
> up to date, and like I said, I don't think this is the problem, as
it
> does
> say finished installing, but then produces that error message.
>
> We did try the drive with a Vista laptop, and it installed ok, so
can
> anybody suggest why it isn't showing up on my friend's machine?
>
> Thanks for any help -
>
> Andy
> ----- Original Message -----
> From: "George Bell" <george@xxxxxxxxxxxxxxxxxxx>
> To: <access-uk@xxxxxxxxxxxxx>
> Sent: Friday, July 30, 2010 10:47 AM
> Subject: [access-uk] Re: USB connectivity
>
>
>> Hi Andy,
>>
>> Here is an FAQ from Western Digital's web page. I think this
pretty
>> well sums it all up. It should work.
>>
>> George.
>>
>> Using USB 2.0 drives with USB 1.1 controllers or hubs
>>
>> Question
>> Can I use my USB 2.0 drive on USB 1.1 controllers or hubs?
>>
>> Answer
>> USB 2.0 drives can be connected to USB 1.1 controllers or hubs.
>> However, they will only run at USB 1.1 rates. To expand USB 2.0
host
>> ports to support more devices, be sure to use a USB 2.0 compliant
> hub.
>> A USB 1.1 hub can only function at slower USB 1.1 speeds. A USB 2.0
>> hub will allow USB 1.1 devices to run at USB 1.1 rates while USB
2.0
>> devices, such as WD drives, will operate at USB 2.0 speeds.
>>
>> Note 1: USB 2.0 hubs will not improve the performance of USB 1.1
>> devices.
>> Note 2: WD recommends against using a USB 3.0 drive on a USB 1.1
> hub,
>> switch, or controller.
>>
>>
>>
>> -----Original Message-----
>> From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On
>> Behalf Of ANDY COLLINS
>> Sent: 30 July 2010 10:26
>> To: access-uk@xxxxxxxxxxxxx
>> Subject: [access-uk] Re: USB connectivity
>>
>> Hi George - You asked for the make of the drive my friend bought,
> it's
>> the
>> WD Elements 25g portable drive, 2.0 USB; that's all he could tell
> me;
>> not
>> sure that Western Digital have the best reputation, but should be
ok
>> wouldn't you say?
>>
>> Andy
>> ----- Original Message -----
>> From: "George Bell" <george@xxxxxxxxxxxxxxxxxxx>
>> To: <access-uk@xxxxxxxxxxxxx>
>> Sent: Tuesday, July 27, 2010 7:47 AM
>> Subject: [access-uk] Re: USB connectivity
>>
>>
>>> Hi Andy,
>>>
>>> Best way is to find out the make and model of the drive, and we'll
>>> look up the technical specs for it.
>>>
>>> Take a look at FAQ 8 at http://www.everythingusb.com/usb2/faq.htm
>>> which explains that, "You may have heard that USB 2.0 is
>>> "backward-compatible" with USB 1.0/1.1 (Full-Speed USB). While
>> that's
>>> true, USB 1.1 is also forward-compatible with USB 2.0."
>>>
>>> I suspect that he may perhaps need to go into Control Panel,
>>> Administration, Computer Management, Storage, Disk Management, and
>>> partition and format the drive.
>>>
>>> The other thing to check is the XP Service release installed.
> Right
>>> click on My Computer and select Properties. It should tell you in
>>> that dialog. He should ideally be on at least XP SP3 which should
>>> provide more up to date USB drivers.
>>>
>>> George.
>>>
>>> -----Original Message-----
>>> From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On
>>> Behalf Of ANDY COLLINS
>>> Sent: 26 July 2010 23:50
>>> To: access-uk@xxxxxxxxxxxxx
>>> Subject: [access-uk] Re: USB connectivity
>>>
>>> Hi George - have to say, this is what I thought to be the case.
I'm
>>> trying to help a friend, who is running an oldish XP machine,
>> probably
>>> with 1.1 USB ports, but not sure yet, cos don't know where to look
>> in
>>> control panel for confirmation? He's bought an external HD,
plugged
>> it
>>> in, but it won't play.
>>> Firstly he got an error warning saying that the software was
>> untested
>>> and to continue with the installation might cause damage; assuming
>>> this was the usual Microsoft scare mongering, he continued anyway,
>> but
>>> apparently, the drive isn't showing up in My Computer.
>>>
>>> Any observations?
>>>
>>> Thanks -
>>>
>>> Andy
>>> ----- Original Message -----
>>> From: "George Bell" <george@xxxxxxxxxxxxxxxxxxx>
>>> To: <access-uk@xxxxxxxxxxxxx>
>>> Sent: Monday, July 26, 2010 11:39 PM
>>> Subject: [access-uk] Re: USB connectivity
>>>
>>>
>>>>I hate to disagree, Chris, but you can usually connect USB 2
> devices
>>>> to a type 1 port, but will only get USB 1 speed.
>>>>
>>>> George.
>>>>
>>>> -----Original Message-----
>>>> From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On
>>>> Behalf Of chris hallsworth
>>>> Sent: 26 July 2010 23:04
>>>> To: access-uk@xxxxxxxxxxxxx
>>>> Subject: [access-uk] Re: USB connectivity
>>>>
>>>> No. However a USB 1.1 device will work on a USB 2.0 port. They
are
>>>> backwards compatible. But not the other way round.
>>>>
>>>>
>>>> Signed by Chris Hallsworth
>>>> E-mail and Facebook: christopherh40@xxxxxxxxxxxxxx
>>>> MSN: ch9675@xxxxxxxxxxx
>>>> Skype: chrishallsworth7266
>>>> Twitter: http://twitter.com/christopherh40
>>>>
>>>> On 26/07/2010 22:58, ANDY COLLINS wrote:
>>>>> Hi all -
>>>>>
>>>>> Will a high-speed 2.1 USB external hard drive run on an XP
>> computer
>>>> whose ports are the old 1.1 speed? -
>>>>>
>>>>> Andy
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