Electrical fault Hello i have a Hp pavillion ze5700, and well When i turn on the power button, the lights come on and fan starts but then it dies again. Its about two seconds worth if that! I have stripped it and can see no faults, would it be some sort of switch on the pcb or?? The cahrge light goes green etc and the battery is tested 100% charged. It did it once before but then started working again, but now it wont go past the two secs max. Help!

Hi, seems to be a wellknown problem of Pavillon NB's. Looks like that the northbridge chip on the mainboard ist unsoldered. Even if somebody tells you do fix it by dropping the mainboard into your baking oven for a few minutes, don't try it! There are specialists who have the technical equipment and the knowledge to fix that problem. But in most cases it would not held a long time.
Hans

Sounds like a bad hard drive or maybe bad ram.I would look to the hard drive first though.

Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error

hope this will help
don

Hello, that sounds a motherboard problem...
Try to do this first :
1- take the battery out and disconnect from power
2- press and hold the power button at least 10 seconds
then put only the power cable not the battery and try to boot...
If this dont help...your motherboard needs to be repaired or replaced.
Thanks.Please rate this answer

On some computers, when you turn it on, the fan starts to run at 100% of its speed, i.e., very noisily.
Then, when it is detected that the computer is functioning, and _not_ over-heating, the fan will slow down, and quiet down.

So, what is the nature of the "loud sound" ?
Continuous? Beeps, in some pattern?

Take the computer to a qualified technician, for better trouble-shooting.

From what you are describing, the motherboard has failed. I would however like you to try a couple of things though. First remove the hard drive and see if the computer will go to the BIOS screen. If it does not, then the Motherboard has definately died. If you can get to the BIOS, then you might consider a hard drive failure, or your windows installation is so corrupt, it is causing this problem. I would however lean toward a bad MOBO....seems this model, the DV6000 and the DV9000 have serious cooling issues and tend to burn their mobos up. HP recently started updating the BIOS files for these models so the fans and processor run more efficiently to keep the laptop cooler.

Try the link . . . www.laptop-problem-solution.com

For find your best solution.

33

Try removing the battery and using only power cord to turn the laptop on. If that fails, try turning it on without power cord, just on battery.

If none of those work, then most probable cause of your problem is motherboard. Hopefuly you are either under manufacturer warranty or you have extended warranty with your vendor where you've purchased the laptop.

If your laptop turns on on power cord, but without battery, then battery is the problem. Also, if laptop turns on when it's only on battery but it doesn't when you plug ac cord in it, then the adapter is the problem.

check yo RAM,Or VGA

Hi there,
First, I recommend you to try removing and reinserting the Battery when the Notebook is turned on and powered with the Power Adapter.
I recomend you to first clean the Battery Connectors by removing the Battery and use a Earbud to clean the Metal Connectors which connect to the Battery to remove any dust which is peventing from the Battery to supply the required power to the Notebook.

You can find some related topics related to troubleshooting issues related to Batteries in HP Notebooks from the links below :
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&docname=c00485351&dlc=en&lc=en&jumpid=reg_R1002_USEN


Additionally, you can download and install HP Battery Health Check SP3229.exe and check the status of the Battery by following the instructions.
Hope this helps...