[Thinkpad] r50 won't boot

[Pietro Belotti]

gwydion wrote:

> Try re-seating the CPU.  I had a 770 with symptoms
> much like what you describe, and re-seating the 
> CPU cured it.

I re-seated the cpu, but it didn't work. 


Jon Etkins wrote:

> I have no first-hand knowledge of the R50, but given
that it's 
> the same generation as the T40, I'd wager it's
susceptible to at
> least some of the same problems.  Specifically,
carrying an open
> T4x laptop around by the front corners of the base
causes slight
> flexing which, over time, leads to failure of the
system board -
> a problem I went through recently with my T40.  The
symptoms
> were *very* similar.
>

I have never (well, not more than a couple of times)
carried it around open by the front corners, but it
did travel a lot, and that might have caused the
flexing, I guess. 


> On Mon, 27 Nov 2006 21:09:43 -0800, Pietro Belotti
<merraksh at yahoo.it>
> wrote:
>
>> I bought an R50 in 2004. One year later it started
>> behaving strangely: after switching it on, it would
>> give no beep and lock with a black screen, not even
an
>> splash screen, probably meaning it did not pass the
>> motherboard test.
>>
>> For some months, the trick was to press gently
under
>> the spacebar, on both sides of the touchpad, and it
>> would boot and work perfectly.
>>
>> A contact problem? That's what I still think. In
fact,
>> during operation I had to be careful not to move
the
>> laptop on the desk, or it would freeze and I could
>> only shut it down by holding the switch for 5
seconds.
>>
>> After some time, the trick stopped working: no
matter
>> if I press gently or rudely, no boot, no beep, and
no
>> splash screen.
>>
>> I found a post on this mailing list about a similar
>> problem, where the cause was a dead CMOS battery.
Mine
>> measures 3V both when detached from and when
attached
>> to the MB, and nothing changes even if I try with
>> another CR2032 batteries.
>>
>> Is there anything I can do (other than replacing
the
>> motherboard)?
>>
>> Thank you very much in advance,
>> Pietro


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