HP Pavilion DV2000 booting / starting problems

Hi,

       HP Pavilion dv2000 does want to start properly on the battey. The power light comes on, the HDD light flashes but nothing comes on the screen. You can hear the fan spinning. If the power lead is plugged in the laptop starts but always at the second attempt. All comes on. If then I remove the power lead it runs fine on the battery.

I would appreciate any comments on this.

Many  thanks
RemapAsked:
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houssam_balloutConnect With a Mentor Commented:
probably its power problem, since its not going on when its on battery
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houssam_balloutCommented:
had you try removing one RAM slot?

is your laptop overheated?
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RemapAuthor Commented:
I have not tried removing the RAM. The laptop is not overheating
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RemapAuthor Commented:
I have just removed one RAM module and the laptop started on battery at the first attempt. Does it mean faulty RAM or slot?
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houssam_balloutCommented:
it could be
give it more try
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RemapAuthor Commented:
I swoped the RAM modules in places. All seems to be as normal. What happened?
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houssam_balloutCommented:
power problem (JAM ISSUE)
try it more than once
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RemapAuthor Commented:
the issue is still there. If I change the memory modules over it is ok for a first start. Even with one memory module it does work ok in the long run.

Is a DC jack problem? Does the motherboard have to diagnose or replace?
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houssam_balloutCommented:
well if that, then the problems between those 2
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RemapAuthor Commented:
I run a memtest to find out if the problem is with memory. What is jam issue in power supply?
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RemapAuthor Commented:
The memtest did not find any prolems with RAM. Is it mobo then?
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houssam_balloutCommented:
could be,  I think that there is one module of the RAM THat is making the problem
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pkjesusCommented:
Hi,

First of all, take a look at this:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01087277&lc=en&cc=us

From my experience with HP dv6000 and dv2000 models,

If the computer turns on, fan turns on, seems to read dvd's, lights are on, but nothing comes up on LCD or external monitor, then you are experiencing a motherboard failure.

This is a common problem with the dv6000 and dv2000 series (the Turion ones in particular); I've had at least 15 people come in with this problem, from the beginning of the year.

Unfortunately this problem cannot be solved unless you replace the motherboard. And even more unfortunate is the fact that, if you don't have a warranty for the laptop anymore, it could cost you up to 250$ to change your motherboard. So bottom line, you'd need another laptop.

Now, from what I see, in your case you're only experiencing some symptoms (see link above). Therefore, if your computer is still under warranty, take it to HP asap and have them change your motherboard.

I hope this helps!
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RemapAuthor Commented:
The laptop is out of warranty. So the motherboard can not be repaired, only replaced.
I just turned on the HP dv2000 laptop on the battery and all comes on.  
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RemapAuthor Commented:
Is temporary, the fact that it is all 'OK'
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houssam_balloutCommented:
I recommend to give it a try for 10 days
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RemapAuthor Commented:
Do you guys think that it would be woth bying a new memory and see how the laptop runs?
It is doing this again. If I play with the memory modules it bahaves OK at a few starts.
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houssam_balloutCommented:
First checkup the motherboard give it a check at a technical center

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