[ltp] vertical lines error on the lcd screen

[Oisin Feeley]

Perhaps the OP is lucky and the video corruption isn't due to an
unseated GPU, but if he is then there are the two options of:
1) get an entire new motherboard
2) fix the broken solder joints

As James points out what needs to be done is "resoldering" or
"reworking".  Apparently the problem of chips popping loose from BGAs
is something that happens not just on Thinkpads.  There's a very
informative post here:
http://forum.thinkpads.com/viewtopic.php?p=238029#238029
which explains how it might be possible to resolder the chip.

Alternatively it seems as though there are a few companies that will
do this.  I'm waiting for a quote from JonhsonComputer
http://www.johnsoncomputer.us/motherboard.html

Oisin

On 4/3/07, James Knott <james.knott@rogers.com> wrote:
> Oisin Feeley wrote:
> > On 4/3/07, Bill Andrus <languru@us.ibm.com> wrote:
> >>  > (vertical lines, console mode text garbled...)
> >>
> >> Your System Board has failed.  The ATI display chips are on a PCB
> >> carrier
> >> that is soldered into the main PCB, and (usually due to flexing or
> >> pressure
> >> around the spacebar and trackpoint buttons) the internal soldering has
> >> broken.  Problem in its earliest stages will be temperature and pressure
> >> sensitive, later it will become more pronounced with system
> >> freeze-ups and
> >> reboots.
> >
> > I've heard people talk about sending the board to have the solder
> > "re-fluxed" to correct this problem.  Do you have any idea if this is
> > really possible?
> >
>
> "Re-fluxing" wouldn't do much, as flux is only used during soldering.
> Howver, problems can often be resolved by resoldering intermittent
> connections.
>
>
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