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dv6000z does not boot

post #1 of 16
1/24/08 at 7:39pm
Thread Starter 
I was using my dv6000z one night and things were fine. The next morning it does not boot (?)or display video. All the (blue) lights work fine. The HD light will flicker for a couple of seconds, then the CD drive light will flicker for several seconds. After another bit of time the machine will turn off all lights and then repeat the sequence.... until I turn it off.

I have placed a bootable cd in the drive but it makes no difference. The HD works as I pulled it out, placed it in an external enclosure and was able to access my data... fortunately.

I took it to a "repair" shop where I was told the video card was dead. They later told me it was not replacable and the motherboard would have to be replaced to get the computer working. I was told several conflicking things and I now have doubts that they really knew what the problem might be.

The "boot" problem has me puzzled.... I have not seem that behavior before.

Any ideas???
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post #2 of 16
1/27/08 at 1:17am
I have that same Problem.... Someone please help!!! AHHH!
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post #3 of 16
1/27/08 at 8:59am
Quote:
Originally Posted by LelandFB View Post
...I took it to a "repair" shop where I was told the video card was dead. They later told me it was not replacable and the motherboard would have to be replaced to get the computer working....
if the video card was bad, then the diagnostic was correct

cheers ...
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post #4 of 16
2/1/08 at 2:20am
the northbridge b.g.a. needs to be re-worked
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post #5 of 16
2/1/08 at 11:33pm
Hmm, frankly, i would like to know on what basis the repair shop determined that the graphics card/chip was dead?

Not impossible, but it could be one of several other causes as well...many of these guys really do not have the diagnostic capability to tell for sure.

It sounds as if the computer is initiating the boot sequence, then re-cycling. It certainly could be a video problem...but not a given.

Not a cure for everything, but, you might try disconnecting the AC, remove the battery, and then remove, and then re-seat the ram, and attempt to boot the system.
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post #6 of 16
2/2/08 at 1:19pm
Quote:
Originally Posted by PeteC2 View Post
Hmm, frankly, i would like to know on what basis the repair shop determined that the graphics card/chip was dead?

Not impossible, but it could be one of several other causes as well...many of these guys really do not have the diagnostic capability to tell for sure.

It sounds as if the computer is initiating the boot sequence, then re-cycling. It certainly could be a video problem...but not a given.

Not a cure for everything, but, you might try disconnecting the AC, remove the battery, and then remove, and then re-seat the ram, and attempt to boot the system.
unfortunately that won't help in this matter. this is a known issue with this model and even on HP's message forum has a huge thread on this issue and wifi failing
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post #7 of 16
2/2/08 at 1:28pm
Thread Starter 
I tried the ram idea - even switched the modules - and no change. I am not familiar with the "northbridge b.g.a." you mentioned. I have worked with desktops but this is my first time working on a laptop. Sure is different.

The "repair" shop told me several things. First the video card was replacable and the video was visible on an external monitor... it is not. They also told me the computer was booting... it does not.

Later they said the video was built into the motherboard and is not repairable. This took a month for them to figure out. It was never explained how they arrived at this conclusion.

The data on the video is:
NVIDIA
S610B011 0640A3
GR3580 - 1 (might be more under some tape)
NF - 430 - NA3

It "looks'" as if it could be pulled but I cannot tell for certain and certainly do not want to break it.

While composing this reply the computer has been cycling thru its thing and I am positive it does not boot.

Thanks for your input.
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post #8 of 16
2/2/08 at 2:10pm
Quote:
Originally Posted by LelandFB View Post
I tried the ram idea - even switched the modules - and no change. I am not familiar with the "northbridge b.g.a." you mentioned. I have worked with desktops but this is my first time working on a laptop. Sure is different.

The "repair" shop told me several things. First the video card was replacable and the video was visible on an external monitor... it is not. They also told me the computer was booting... it does not.

Later they said the video was built into the motherboard and is not repairable. This took a month for them to figure out. It was never explained how they arrived at this conclusion.

The data on the video is:
NVIDIA
S610B011 0640A3
GR3580 - 1 (might be more under some tape)
NF - 430 - NA3

It "looks'" as if it could be pulled but I cannot tell for certain and certainly do not want to break it.

While composing this reply the computer has been cycling thru its thing and I am positive it does not boot.

Thanks for your input.
the northbridge is a chip on the board. it is attached to the board differently then most chips on the board. most have pins that get soldered on. a Ball Grid Array chip has solder balls underneath it and when they fail, sometimes the chip needs to be re-balled and then re-flowed onto the board. other times it just needs to be re-flowed.

i do this repair every day at work
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post #9 of 16
2/10/08 at 10:22am
I heard if you have the right model #, That HP will fix your laptop for free..
They'll send you a prepaid shipping box, so everything is free the shipping & the repair, It dosen't matter is your laptop is still under warrenty or not.. check it out go the HP.com
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post #10 of 16
2/11/08 at 11:53pm
Quote:
Originally Posted by juna1103 View Post
I heard if you have the right model #, That HP will fix your laptop for free..
They'll send you a prepaid shipping box, so everything is free the shipping & the repair, It dosen't matter is your laptop is still under warrenty or not.. check it out go the HP.com
YES that is true. the info is on their message forum. some people have said that they are out of stock on boards, they are on back order. some people's complete turn-around time for repair for a month
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post #11 of 16
2/12/08 at 5:52am
I had the exact same problem today. As it turns out in my case - one of the RAM modules was faulty. I had two 512 MB RAMs. When putting one of them, it started to give beeps. When placing the other one, it started normally.
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post #12 of 16
2/12/08 at 5:43pm
Quote:
Originally Posted by zastel View Post
I had the exact same problem today. As it turns out in my case - one of the RAM modules was faulty. I had two 512 MB RAMs. When putting one of them, it started to give beeps. When placing the other one, it started normally.
ah nice you are a lucky one. sure beats having to deal with HP and their LONG turn-around time for the repairs. not to mention crossing your fingers hoping the part is in stock and not on back order.
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post #13 of 16
2/15/08 at 6:45am
Quote:
Originally Posted by PeteC2 View Post
Hmm, frankly, i would like to know on what basis the repair shop determined that the graphics card/chip was dead?

Not impossible, but it could be one of several other causes as well...many of these guys really do not have the diagnostic capability to tell for sure.

It sounds as if the computer is initiating the boot sequence, then re-cycling. It certainly could be a video problem...but not a given.

Not a cure for everything, but, you might try disconnecting the AC, remove the battery, and then remove, and then re-seat the ram, and attempt to boot the system.

the best advice. I had your problem and here's what I did.

powered off the machine, remove the ac plug and battery. remove the memory and ::IMPORTANT:: remove the ///unplug the bios battery. after 10 to 15 mins, reinstall the bios battery, then memory, then use your ac adapter to power on. your pc should now post and you have to enter bios setup. reconfigue your boot options. power down, install your battery and you should be good to go.

head over to HP support site, enter your model number and read up on this issue. Hp has a document that explains what I wrote. Good luck
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post #14 of 16
3/6/08 at 4:41am
Quote:
Originally Posted by ite4life View Post
the best advice. I had your problem and here's what I did.

powered off the machine, remove the ac plug and battery. remove the memory and ::IMPORTANT:: remove the ///unplug the bios battery. after 10 to 15 mins, reinstall the bios battery, then memory, then use your ac adapter to power on. your pc should now post and you have to enter bios setup. reconfigue your boot options. power down, install your battery and you should be good to go.

head over to HP support site, enter your model number and read up on this issue. Hp has a document that explains what I wrote. Good luck
what if the board does not POST after doing this process? I have had to re-ball some of these nvidia chips and it corrected the problem. It had nothing to do with the cmos battery
I will try this tomorrow on this one unit I bought broken from Ebay with this issue before i re-work the BGA.
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post #15 of 16
3/6/08 at 7:04pm
This problem is simple all you need to do is have HP replace the motherboard. yes ond you wont pay
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post #16 of 16
3/7/08 at 12:55am
Quote:
Originally Posted by TECHEAD View Post
This problem is simple all you need to do is have HP replace the motherboard. yes ond you wont pay
After they replace the board for you, it is only covered for 1 year. Once it happens again after that 1 year, you will need to have to have to board either repaired or replaced. I am not saying it will happen again after they replace the board, I am assuming that they maybe came out with a new revision for these boards to correct whatever the cause is for these failures.
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