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USB fast v slow

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Dave W

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Dec 18, 2009, 10:23:08 AM12/18/09
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When I plug a memory stick into my old HP N5412 laptop running XP, an
annoying message comes up saying a fast USB is plugged into a slow USB
port, although everything works fine for my purposes. It says it needs
a high-speed USB controller.

I assume this is a hardware device, not upgradable by software (or is
it?), so is there any way of disabling Microsoft's patronising pop-up?

Dave W

Chris Whelan

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Dec 18, 2009, 10:55:48 AM12/18/09
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You can disable *all* USB error messages:

http://support.microsoft.com/default.aspx?scid=kb;en-us;835967

Not sure if there is a way to just turn off the one message that you are
not alone in finding annoying.

BTW, this may not be the most appropriate ng for this question...

Chris

--
Remove prejudice to reply.

Adrian C

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Dec 18, 2009, 12:36:11 PM12/18/09
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Dave W wrote:
> When I plug a memory stick into my old HP N5412 laptop running XP, an
> annoying message comes up saying a fast USB is plugged into a slow USB
> port, although everything works fine for my purposes. It says it needs
> a high-speed USB controller.

It doesn't have one.

> I assume this is a hardware device, not upgradable by software (or is
> it?),

The N5412 is based on the Ali M1647 + M1535 chipset, the M1535 only
offers USB 1.0 full speed, not 2.0 high speed.

http://www.nvidia.com/page/uli_m1535.html

--
Adrian C

William

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Dec 18, 2009, 1:07:41 PM12/18/09
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As you said... you are using an old laptop...

But seems also that everything works fine, so it automatically adjusts
the transfer speed and simply the system tells you that you could use
a faster port.

But where is this port? did you check? Or the laptop was really really
old and you updated the OS with XP?

--
http://shop-for-computer.com

Special prices, best deals, refurbished computers.

Dave W

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Dec 19, 2009, 5:48:05 AM12/19/09
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Thank you all for your very pertinent replies. Chris's link looks as
if it will do the business for me, as this is the only USB error I
get. Adrian's link confirms what I suspected from the info on the HP
website. William - of course I checked; the laptop does not contain a
high speed port. That's why I was puzzled by the error message which
makes it sound as if I could add one. The laptop came with XP, and in
fact I have used Partition magic to install a small Win98 region, so
that I can use my programmes which don't work on XP.

Dave W

Rob Morley

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Dec 19, 2009, 6:21:42 AM12/19/09
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On Sat, 19 Dec 2009 02:48:05 -0800 (PST)
Dave W <dave...@yahoo.co.uk> wrote:

> Thank you all for your very pertinent replies. Chris's link looks as
> if it will do the business for me, as this is the only USB error I
> get. Adrian's link confirms what I suspected from the info on the HP
> website. William - of course I checked; the laptop does not contain a
> high speed port. That's why I was puzzled by the error message which
> makes it sound as if I could add one.

You can if you have a free PC Card (PCMCIA) slot.

Johnny B Good

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Dec 19, 2009, 11:22:49 AM12/19/09
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The message <20091219112142.39df0d3f@bluemoon>
from Rob Morley <nos...@ntlworld.com> contains these words:

I doubt it would be worth the trouble. If the laptop is so old as to
not have USB2 built in, it's odds on that the CPU will struggle to
service the demands of such a shite interface at its full speed.

If I could "Quantum Leap"(tm) back in time, the two designers involved
in foisting this execerable interface on poor defenceless PCs would be
2nd and 3rd on my list of 'un-persons' to be quietly assassinated (the
first being Bill Gates).

--
Regards, John.

Please remove the "ohggcyht" before replying.
The address has been munged to reject Spam-bots.

Dave W

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Dec 21, 2009, 10:01:13 AM12/21/09
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On 19 Dec, 11:21, Rob Morley <nos...@ntlworld.com> wrote:
>
> On Sat, 19 Dec 2009 02:48:05 -0800 (PST)
> Dave W <davew...@yahoo.co.uk> wrote:
> > .....That's why I was puzzled by the error message which makes it sound as if I could add one.

>
> You can if you have a free PC Card (PCMCIA) slot.

Rob, thanks for that. I don't need a fast USB port, but you've alerted
me to the fact that I could use the PMCIA slots to add an RS232 port,
which I do need. I had tried a USB to RS232 converter, but it was very
slow, probably due to my slow USB port. Mind you Johhny B Good's post
makes me think that the PMCIA method would be just as slow.

By the way, Charles's link for disabling the error message boils down
to an obscure tick-box accessible via Control Panel. Thanks again.

Dave W

Jaimie Vandenbergh

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Dec 21, 2009, 10:07:11 AM12/21/09
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On Mon, 21 Dec 2009 07:01:13 -0800 (PST), Dave W
<dave...@yahoo.co.uk> wrote:

>On 19 Dec, 11:21, Rob Morley <nos...@ntlworld.com> wrote:
>>
>> On Sat, 19 Dec 2009 02:48:05 -0800 (PST)
>> Dave W <davew...@yahoo.co.uk> wrote:
>> > .....That's why I was puzzled by the error message which makes it sound as if I could add one.
>>
>> You can if you have a free PC Card (PCMCIA) slot.
>
>Rob, thanks for that. I don't need a fast USB port, but you've alerted
>me to the fact that I could use the PMCIA slots to add an RS232 port,
>which I do need. I had tried a USB to RS232 converter, but it was very
>slow, probably due to my slow USB port. Mind you Johhny B Good's post
>makes me think that the PMCIA method would be just as slow.

RS232 is very slow, much slower than USB1 (maybe max 250kbit vs
12Mbit), so it's not likely to have been due to the USB port's speed
limit.

But... USB-RS232 converters are notoriously dubious, so it may have
been down to the converter. A PCMCIA card will give you a true RS232
port, with real 12V and everything, so may well be better.

Cheers - Jaimie
--
If you own a jackhammer, every problem looks like hours of fun

Dave W

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Dec 21, 2009, 10:18:59 AM12/21/09
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On 21 Dec, 15:07, Jaimie Vandenbergh <jai...@sometimes.sessile.org>
wrote:

>
> RS232 is very slow, much slower than USB1 (maybe max 250kbit vs
> 12Mbit), so it's not likely to have been due to the USB port's speed
> limit.
>
> But... USB-RS232 converters are notoriously dubious, so it may have
> been down to the converter. A PCMCIA card will give you a true RS232
> port, with real 12V and everything, so may well be better.
>
>         Cheers - Jaimie
> --
> If you own a jackhammer, every problem looks like hours of fun

I use RS232 to communicate with my eTrex GPS unit. The upload via the
USB-RS232 converter I tried (using my own slow BASIC program) took
twice as long as using the RS232 on my desktop PC. So thanks for your
encouraging words.

Dave W


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