[ltp] High Speed USB problems

[Jason Brooks]

T40 series have heat problems. Most are a result of the graphics chip
reflowing itself off the board.  Shorting out the bus. It was never a
big deal when it was a business laptop since the heat was a result of
using 3d graphics.  There are plenty of places that do reflow work to
repair these issues. I would imagine plenty in TX. Search for SMD
Reflow repair in your area. It may be cheaper to buy a replacement
from ebay however. Most repair places charge book time for these
repairs.  Good luck


On Tue, Jul 20, 2010 at 8:38 AM, Jeffrey L. Taylor
<jeff@abluz.dyndns.org> wrote:
> Quoting Jeffrey L. Taylor <jeff@abluz.dyndns.org>:
>> Quoting bhaskins <bhaskins@chartermi.net>:
>> > Jeffrey L. Taylor wrote:
>> > >Quoting Marius Gedminas <marius@gedmin.as>:
>> > >>On Mon, Jul 19, 2010 at 02:33:46PM -0500, Jeffrey L. Taylor wrote:
>> > >>>Quoting U Kuehn <ukuehn@acm.org>:
>> > >>>>Do you observe high speed usb also not working under windows (warn=
ing
>> > >>>>like "high speed usb device connected to low speed port" or someth=
ing
>> > >>>>similar)? If so, it might be hardware-related.
>> > >>>>
>> > >>>>I had the a similar problem, also only from time to time. I read
>> > >>>>somewhere that it indicates a dying south-bridge :( In the end, I =
had
>> > >>>>the mainboard replaced because sound device vanished from the syst=
em and
>> > >>>>in the end, it could not access the hard disk anymore. By that tim=
e,
>> > >>>>luckily, the warranty was still valid...
>> > >>>Thank you for jogging my brain, I'll try booting into Windows when =
I am home
>> > >>>where all the USB devices are.
>> > >>Also, read this: http://www.thinkwiki.org/wiki/Problem_with_USB_2.0
>> > >>
>> > >>I had a T42 with this problem. =C2=A0It died completely a few months=
 after the
>> > >>warranty expired.
>> > >>
>> > >
>> > >This sounds very much like my problem, except the USB hard drive does=
 not work
>> > >properly at all. =C2=A0Replacing the main board probably doesn't make=
 sense for a 6
>> > >year old laptop unless I can cannabilize a known good one from some o=
ther
>> > >laptop.
>> > >
>> > >I'm going to miss it, I like my T41. =C2=A0Plus the hassle of picking=
 a replacement
>> > >and moving the files and setting up a new computer.
>> > Why not try a PCMCIA USB2 adapter?
>> > I have several including one that also has a FireWire port which I use=
 for
>> > HD video capture.
>> > IMHO most of the new laptops are 36, ( or less ), month POS wonders.
>> > Long story but I've been "sucked into" finding why over six of these d=
ied
>> > since the first of the year and all of them have internal shorts on
>> > the mother
>> > board, most likely a "tin whisker" problem.
>> > Personally, I'm sticking to my A31s as they just keep going and
>> > going without
>> > even the slightest glitch.
>> > I sold one of my A31s to a neighbor and it even survived bouncing arou=
nd in
>> > the cabin of her SUV during a rollover.
>> > The SUV was totaled, but the Thinkpad just needed a DVD drive replacem=
ent.
>> > They don't build em like they used to!!!!!!!!!!!!!!!!!!!!!!!
>> > Of course, part of this is that I !!! hate !!!! ~!@#$ touchpads, ( I
>> > play guitar ), and it is hard to find a nice new LT with a
>> > Trackpoint or trackball
>> >
>>
>> That is an interesting workaround, certainly faster and cheaper than
>> replacing the system board.
>>
>
> The PCMCIA USB card solves the connectivity problem, but ThinkWiki implie=
s
> that total failure is imminent. =C2=A0Have to think about that.
>
> Jeffrey
> --
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>



--=20
JaY