On 1/10/2011 4:45 PM, BillW50 wrote:
> In news:ChIWo.19326$,
> Williams typed on Mon, 10 Jan 2011 12:33:06 -0600:
>> On 1/10/2011 11:17 AM, BillW50 wrote:
>>> In news:CyGWo.10921$,
>>> Williams typed on Mon, 10 Jan 2011 10:34:43 -0600:
>>>> 3-year old HP Pavilion DV9700
>>>> Windows Vista (current with Windows Update)
>>>> 2 GB RAM (OEM)
>>>> WD 320 GB HD (installed for about two months as boot drive)
>>>> Hitachi 160 GB GD (original, now installed as backup)
>>>> Three month old battery with no performance problems.
>>>>
>>>> Laptop has been trouble free until today. While typing an e-mail,
>>>> the PC became unresponsive. It was locked up, could not
>>>> Ctl-Alt-Del out of it. So I shut it down by holding down the power
>>>> button. When I tried to restart it, it did not boot up. The blue
>>>> lights
>>>> came on the keyboard and the fan on the bottom ran, but after 2 or 3
>>>> seconds it powered down. It did not even get to the HP "splash"
>>>> screen so I could go into the BIOS. On its own it tried to restart
>>>> after about 8 seconds. This repeated until I unplugged it and
>>>> removed the battery.
>>>> Troubleshooting so far:
>>>> 1. Unplugged the AC adapter and tried from battery alone. Same
>>>> results. 2. Removed battery and tried from AC alone. Same results.
>>>> 3. Removed WD HD and tried to boot from Hitachi HD. Same results.
>>>> 4. Removed both HD and tried to boot from Windows CD. Same results.
>>>>
>>>> What am I dealing with here? Are there any further troubleshooting
>>>> steps to try?
>>>>
>>>> TIA,
>>>> Craig
>>>
>>> Other things to try...
>>>
>>> 1) Remove AC, remove battery, then press the power button down and
>>> keep it down for 10 seconds. Now try to use the laptop normally.
>>>
>>> 2) Remove the hard drive, CD/DVD drive, WiFi card, RAM, and anything
>>> else like Bluetooth, etc. The idea here is one of these failed and
>>> maybe causing a fault. Last thing to disconnect to try would be the
>>> LCD panel. Although it is best to use an external monitor so you can
>>> see what is happening on the screen.
>>>
>>> 3) The fan(s) could have failed and most laptops will power it down
>>> it the speed isn't right. The fan and laptop could be clod full of
>>> dust which can cause the laptop to shut down too.
>>>
>>> 4) If none of this helps, sounds like the motherboard needs to be
>>> replaced. Say what kind of video chip does it supposed to have?
>>
>>
>> Thanks for the suggestions, Bill.
>>
>> 1) Did the "hard reset" with no change.
>> 2) Removed HDs, optical drive, both memory modules. No change.
>> Connected external monitor, it never showed anything. No change.
>> 3) I can hear the fan spin up and can see it through the bottom
>> ventilation grill. It hardly has any dust on it.
>> 4) I don't remember what video chip it has. Can probably get that
>> from my invoice (if I can locate it) or from HP support.
>>
>> So it sounds like it might be a dead motherboard? Is that a
>> user-replaceable device?
>>
>> Craig
>
> Kind of sounds that way. User replaceable? No not normally. Although if
> you are good at taking things apart and can find the service manual on
> the Internet, you will probably be okay. Cheapest prices are usually on
> eBay and often used.
>
Thanks again. I really don't think I'm up to the task or the potential
costs. I found an online supplier of the motherboard for about $250,
which seems way too high. And buying a used one is definitely a no-no
for me. We can survive with the desktop until I find a good laptop on
sale. And it won't be an HP.
Craig
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