[mdlug] Laptop Hardware issues

[Raymond McLaughlin]

Peter Bart wrote:
> On Thu, 2009-02-26 at 05:53 -0500, Raymond McLaughlin wrote:
>> The laptop: HP Pavilion DV600 series (dv6253cl)
>>   AMP Turin 64
>>   NVidia Graphics
>>   2 GB RAM
>>
>> The problem: Upon power up a more or less normal POST seems to start,
>> but the display never lights, and after about 12 seconds it powers off
>> for about 5 seconds, then starts the cycle over.
>>
>> A client gave it to me because of this problem.
>> After I first got it (and after charging the battery) I discovered that
>> I could "trick" it into booting up by quickly powering it off and back
>> on again, once it started into this looping behavior. This "trick"
>> worked several dozen times. Over the course of a week end I got I nice
>> install of OpenSUSE 11.0 working great, and thought I had a good, if
>> somewhat quirky, new laptop. Then my "trick" quit working, and it hasn't
>> booted since.
>>
>> What I have tried:
>>   Starting on AC power only, no battery.
>>   Starting on battery power only, no AC.
>>   Disconnecting, replacing, swapping all disk drives.
>>   Swapping in known good RAM (Original RAM passed memtest without problem.)
>>   Took the whole thing apart looking for loose or faulty connections.
>>   Tried booting mother board with disk drives, track-pad, and keyboard
>> disconnected. problem persists
>>   Reassembled it fail in the same manner as always.
>>
>> Any suggestions before I start selling off parts?
> 
> 	Search turned up these results which seem to match somewhat? They are
> all using Windows though.
> 
> <http://www.eweek.com/c/a/Desktops-and-Notebooks/HP-Fixing-XP-SP3-Problems/>
> <http://techrepublic.com.com/5208-6230-0.html?forumID=89&threadID=195004&messageID=2013766>
> <http://help.lockergnome.com/general/PC-rebooting-loop--ftopict53223.html>
> 
> Good Luck,

Thank you. All those articles are about problems encountered after POST.
I'm not getting that far.