HP Pavilion TX1320us powers up, screen is black, nothing on an external monitor - seems to be bad video card. These were recalled and after trying since May 09 with an authorized HP reseller/repair...
When we talk about laptop won't boot up it is a hardware failure.
First of all, most of the hardware failures
that are going to be presented in this article require you to
disassemble the laptop and work on its internal components. Because of
this, you need the required components to take the laptop apart (such
as screwdrivers, etc.) and space, lots of space. If you don't have a
workbench, then working on that large table in the living room should do it.
Second of all, you need to be extra careful
about ESD (electrostatic discharge). Sure, this is important when
working with a desktop system too, but you really shouldn't consider
this as some sort of overreaction or waste of time. A few anti-static
conductive bags should suffice. These are going to be useful when you
take apart components from the laptop and you need a safe place to put
them down.
If the laptop does not power on using the
batteries, then try to power it using the AC adapter. Pay attention and
see whether the LED on the laptop lights up, signaling that the adapter
was detected. If yes, then your power jack works. If the notebook still
does not power on, disassemble the laptop and remove the batteries.
Look first for the CMOS battery and take it out.
Your best bet is that the problem is
memory-related. What you need to do is re-seat the memory modules. If
there are more than one, then try swapping them between each other and
try different slots. Try booting again. If it does not work, then try
running with only one module - this way, you can tell whether one is
faulty.
Disassemble the laptop and remove the HDD,
CD/DVD drives, and the modem and/or wireless card(s). If possible, take
out the sound card module (if separate). To minimize the possible
causes, you may disconnect the LCD panel as well. Try running this way.
If it does boot, then try connecting each connector one at a time,
booting up in between to localize the problem.
Good
luck and take time to do a hard troubleshooting this trouble is not
easy as well. You need to be care full in removing the some parts so
that the other will not affected and being damaged.
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