Laptop won't boot.

Hello all!

I have a strange situation in front of me. I have a Pavilion 6140ca laptop.

2gigs of ram
120 gigs HD hard drive (that I had to replace last christmas)
Turion X2 processors (1.8ghz about)
Integrated ram, etc, etc. (look at my signature for more details)

So yesterday, I try to print something, realize I don't have the drivers, so I switch off the laptop normally... Start - Turn off - Shut down.

Leave it on the table, and leave for a meeting. It was unplugged.

Come back, move it to the bed (was really angry at something, but it didn't hit it hard or anything) and then move it back to the living room.

Try to turn it on...

Lights come on (Power, AC/power). The HD light doesn't light up. Hmm peculiar.
Then I have no display. No nothing. Blank as a white sheet of paper. There is nothing going on in the screen

I HAVE TRIED :
- Doing the 10 second power button thing with no battery of AC power.
- Taking the HD out, thinking this was the problem.. Nothing.
- Replacing the memory in it. Nothing changes.

Lights come on, not the screen though. No sounds come out. I hear the HD starting, but to no avail I think. Fans start for about 5 seconds then stop since they have no reason to stay on.

Tonight I will try plugging it to an external monitor at my school, see how it goes..

Question? Comments? Jusy askkk...

 

Let us know what you get with an external monitor hooked up: does it even try to POST, can you get into the BIOS settings, etc...

If you get no display on the external monitor either, then my guess would be your motherboard needs attention, and you'd probably need to contact HP for help. But if you do get a display on the external monitor, it's probably something really simple like the cable connecting the mobo to the screen got jostled loose.

Good luck!

 

A - Whats POST? I must know but the term is eluding me.

B - I guess the Hard Drive isn't even moving, the vibration I felt was my DVD drive booting up.

C - I plugged it to an external monitor and nothing else happened.

D - When I press my Quickplay buttons, it beeps. I turned that beep off in my BIOS ... months ago...

I bought this laptop on January 29th, 2007.

I'm gonna give my hard drive to a friend, which is gonna directly connect it to his computer with a SATA (or whatever) cable and see if he can see my hard drive (and hopefully save my data... since its pretty damn important...). Also since HP reformats every hard drive they get, automatically.

Sigh. I'm on warranty, but it's on the Staples warranty, and if my mobo is screwed up, they'll give me like... 500$ for it probably to buy a new one.

 

Hi i have the same problem but i have just replaced the motherboard and still the same problem!?!?!?

Is it possible that the AC adaptor is messing about as this is common on desktops (everything lights up but no boot) due to lack of power/damaged PSU?

 

I strongly doubt, because I have a fully charged battery and the screen still doesn't boot.

 

First I would remove the RAM then try each module in turn. Poorly seated RAM can make a computer behave as if dead.

Next I would disconnect mains power and remove the battery and hold the power button down for a minute, then replace / reconnect and try turning it on.

John

 

Power On Self Test. It's the screen that appears briefly at the beginning of boot.

HP doesn't format every drive, but you are right to protect your data.

Look at the power lights. A common HP mobo failure symptom is the power lights will come on, the HD led will flash for a few seconds, but the AC power led will go off (even though the ac adapter is connected) after 10 or 15 seconds.

 

No it doesn't POST.

And I had tried the ram thing.

Well the HD led does flash, the AC is on, but it stays on. Eventually, the PC powers down though.

And my hard drive is fine - Is there a way to reset your bios when you have no image?

gonna go to a pc store tomorrow and see if he can do that.

 

If you can clear the CMOS via removing the bios battery and the memory that would help.
First remove the bios battery and the memory from the computer.
Also remove the system battery and the ac adaptor.
Let the system sit for about 10 minutes for the capacitance to discharge from the system. Once the power is depleted, the bios looses power and resets
Than put the bios battery, memory, battery and ac adaptor back in.
If the system does not boot, than you have a faulty motherboard, which needs to be replaced.

Does the system make any beeps when the memory is removed from the system?
If it does beep, than something is not connected properly.
If the motherboard does not beep, than your motherboard needs to be replaced

K-TRON

 

I left my laptop to my friend so he could finish xfering my files onto my External hard drive.

He removed the memory, etc. etc. and put it all back in.
Then he turned it on (it wasn't plugged in) and he says it beeped twice.

So ... that's a good thing, right?

Three beeps (so I've heard) is that the graphics card hates you.
2 means...? My mobo isn't dead? hurray.

Still... stupid as hell because I can't open it myself. 3 months of waiting around so they can replug something.

Uncool -_-!

 

i think 2 beeps was soemthing isnt connected properly. Double check all the parts are in place

Check your BIOS'es beep code meanings

 

I can't really disassemble my PC, flipfire.

I think I found the fix though...
http://h10025.www1.hp.com/ewfrf/wc/...=3280003&docname=c01087277#c01087277_identify

thank god I'm still in my 24 months.

I'm just wondering - HOW DO YOU UPGRADE A BIOS WITH NO DISPLAY?!?!
Anyone?
-_-!

 

HP systems have their own BIOS and POST Error messages, where usually errors are reported through LED flashes together with beeps.

In HP BIOS 2 beeps actually mean that the thermal protection of the CPU is turned on and prevents the system from booting. Power LED is supposed to flash 2 times with a short interval.

Try to open the backlid so that you'll be able to see the fan. First, check if the fan is connected. Press the power button and watch if the fan at least tries to start spinning. Try not to interact with the fan, because it's very easy damage the bearers, resulting in extra fan noise after some time...
Another option - may be it's thermal sensor is playing up

Whatever it is, i don't think you'll be able to fix it yourself unless it is a basic fan failure