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Defective Nvidia GPU? - HP Nvidia Defect? Blank Screen problems? Laptop Display Problems?
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PostPosted: Mon Aug 02, 2010 11:35 am 
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Joined: Thu Jul 16, 2009 6:43 pm
Posts: 178
Laptop Make: HP
Model: TX1138
Purchased From: High Street Store
Amount Paid: 600
Date Purchased: 31 Oct 2007
Date Failed: 30 Nov 2008
Just to let you know Paul is away for a week for a well earned rest.............

Ralph


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PostPosted: Mon Aug 02, 2010 12:06 pm 
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Joined: Wed Jun 30, 2010 7:44 am
Posts: 25
Laptop Make: HP
Model: Pavillion dv9700 - s/n CNF82323T7 - p/n FF492EA#ABU - service tag dv9823em - warranty 1 year
Purchased From: High Street Store
Amount Paid: 499
Date Purchased: 24 Aug 2008
Date Failed: 24 Jun 2010
Hi Ralph,

Thanks very much for letting me know, it is indeed very well earned!

Best regards

HPM


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PostPosted: Fri Aug 06, 2010 2:50 pm 
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Joined: Wed Jun 30, 2010 7:44 am
Posts: 25
Laptop Make: HP
Model: Pavillion dv9700 - s/n CNF82323T7 - p/n FF492EA#ABU - service tag dv9823em - warranty 1 year
Purchased From: High Street Store
Amount Paid: 499
Date Purchased: 24 Aug 2008
Date Failed: 24 Jun 2010
I just called PC World customer services to discuss the issue again. I spoke to Chrissy who told me that my 'case manager' (Tom) would be in touch. I was actually quite impressed as he called me back within 10 minutes.

This Tom is actually very helpful and fairly understanding. He agreed immediately that 92'C is totally unacceptable for a GPU temp. He noted my updates on the issue and had remembered our previous discussions. He said that as it has failed again and as the store found no issue, he now needs an independent engineers report from me.

Tom confirmed that if a fault was found and depending how it was caused (i.e. if it was the nvidia issue) I will be reimbursed for the cost of the report.

Tom said that in the report, they require the cost of any potential repair (including parts and labour), the cause of the fault and it must be on official headed paper with a contact number. He said they get a lot of people faking their own reports!

He said that assuming the report confirms that it is the nvidia issue, they would offer either:

- A free repair. However, he did say that if 'your engineer can fix that, we'd like to talk extensively to him!!'

- A contribution towards a new laptop.

So Paul, once you're back in, let me know when would be a good time for me to arrange the report.

Many thanks

HPM


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PostPosted: Sun Aug 08, 2010 7:45 pm 
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Joined: Tue Jun 09, 2009 7:54 pm
Posts: 6891
Graphics Card: 8600M GS
Purchased From: High Street Store
Amount Paid: 0
Hello HPM,

Well, I am back off holidays now so whenever you want to book your laptop in for repair will be good.

Quote:
- A free repair. However, he did say that if 'your engineer can fix that, we'd like to talk extensively to him!!'


I bet they would like to talk "extensively" to anyone who could fix the problem - maybe their engineers need some ideas on how to go about this?

But in any event, repairing the laptop is not an option as whilst this may allow the laptop to operate, it does not remove the inherent defect that is present.

I would say that a repair is definitely out of the question.

If you have any questions or if you need any advice then please let me know.

Good luck and best wishes

Paul
The Admin Team

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=======================================================
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Why you should not accept a repair
Links to evidence
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=======================================================


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Please note that I am not legally qualified and I only offer my own personal advice. You are advised to seek professional legal advice for formal clarification of advice I give.


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PostPosted: Mon Aug 09, 2010 12:09 pm 
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Joined: Wed Jun 30, 2010 7:44 am
Posts: 25
Laptop Make: HP
Model: Pavillion dv9700 - s/n CNF82323T7 - p/n FF492EA#ABU - service tag dv9823em - warranty 1 year
Purchased From: High Street Store
Amount Paid: 499
Date Purchased: 24 Aug 2008
Date Failed: 24 Jun 2010
Hi Paul,

Thanks for your reply. I've been onto the Lapcure site and registered (under HPMisery and also tried HPMisery1) but I don't seem to get the activation email so I can't proceed with booking the report in.

Also, just to note, I've registered with my home address but I'll need the laptop to be collected from/delivered back to my work address - I hope that's OK.

Many thanks

HPM


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PostPosted: Mon Aug 09, 2010 12:36 pm 
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Site Admin

Joined: Tue Jun 09, 2009 7:54 pm
Posts: 6891
Graphics Card: 8600M GS
Purchased From: High Street Store
Amount Paid: 0
Hello HPM,

You've got mail.

Best wishes

Paul
The Admin Team

_________________
=======================================================
Calculate the minimum refund that you would be entitled to.
FAQ's
Why you should not accept a repair
Links to evidence
What is the Nvidia Defect?
Step by step help to getting a refund
Do you need an engineers report?
=======================================================


If you like what you see on this forum and would like to help then please post links to this forum in other forums or blogs. The more people we can help the better.


Please note that I am not legally qualified and I only offer my own personal advice. You are advised to seek professional legal advice for formal clarification of advice I give.


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PostPosted: Mon Aug 09, 2010 1:44 pm 
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Joined: Wed Jun 30, 2010 7:44 am
Posts: 25
Laptop Make: HP
Model: Pavillion dv9700 - s/n CNF82323T7 - p/n FF492EA#ABU - service tag dv9823em - warranty 1 year
Purchased From: High Street Store
Amount Paid: 499
Date Purchased: 24 Aug 2008
Date Failed: 24 Jun 2010
Thanks Paul

Have booked the job; I'll make sure my laptop is available for collection from tomorrow onwards at my work address (which I noted on the job request). I'll await your email with the label whenever you're ready.

Many thanks

HPM


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PostPosted: Mon Aug 09, 2010 6:39 pm 
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Site Admin

Joined: Tue Jun 09, 2009 7:54 pm
Posts: 6891
Graphics Card: 8600M GS
Purchased From: High Street Store
Amount Paid: 0
Hello HPM,

You've got mail.

Best wishes

Paul
The Admin Team

_________________
=======================================================
Calculate the minimum refund that you would be entitled to.
FAQ's
Why you should not accept a repair
Links to evidence
What is the Nvidia Defect?
Step by step help to getting a refund
Do you need an engineers report?
=======================================================


If you like what you see on this forum and would like to help then please post links to this forum in other forums or blogs. The more people we can help the better.


Please note that I am not legally qualified and I only offer my own personal advice. You are advised to seek professional legal advice for formal clarification of advice I give.


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PostPosted: Tue Aug 10, 2010 9:25 am 
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Joined: Wed Jun 30, 2010 7:44 am
Posts: 25
Laptop Make: HP
Model: Pavillion dv9700 - s/n CNF82323T7 - p/n FF492EA#ABU - service tag dv9823em - warranty 1 year
Purchased From: High Street Store
Amount Paid: 499
Date Purchased: 24 Aug 2008
Date Failed: 24 Jun 2010
Hi Paul,

Laptop is ready for collection with the label and RMA number on the box.

I switched it on last night to 'make sure' it was still a brick. It was.

I did it again this morning just before boxing it up and absolutely, unbelievably typically, the screen worked. I got the option of running windows start up repair or starting windows normally. I opted for the latter and got nothing but a black screen; the screen did appear to be working, it was just blank.

However, I then turned it off and on again and it was back to its usual doorstop status - nothing on the screen at all. I then turned off/on again a few times and it remained as a doorstop.

Looking forward to hearing your views in due course! Thank you in advance for your report.

Best regards,

HPM


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PostPosted: Sun Nov 07, 2010 3:08 pm 
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Joined: Sun Nov 07, 2010 2:10 pm
Posts: 2
Laptop Make: HP
Model: DV9000, DV9500, DV9700
Graphics Card: 7400
Amount Paid: 1000
I hope this worked out OK and your laptop is now repaired, however, I am sorry to have to tell you that this might just be the start of the nightmare for you rather than the end.

I have repaired quite a few DV9000's, DV9500's DV9700's etc. They are all pretty similar. I recently repaired a machine that had been to HP for repair only one year ago. HP installed a new motherboard. Unfortunately though, the machine had been rebuilt in a similar fashion to how it was originally built, and was therefore liable to having the Nvidia chip fail again over a similar timespan of one year to two years.

If you have a DV9xxx model, here are a few suggestions that can help prolong the life of your machine:

1) Check your GPU temperatures regularly. Here are two free programs for this purpose:

* Speedfan - http://www.almico.com/sfdownload.php (click on the "latest version is" link for download)
* HWMonitor - http://www.cpuid.com/softwares/hwmonitor.html

Your Nvidia GPU should IDLE at below 70° centigrade. Machines I repair and clean have an idling GPU of 50° - 65° centigrade (depends on model and GPU). If your GPU idles above this, the most likely reasons are:

1) Your fan outlets blocked with dust. After a few months of normal use the fan can get blocked with dust, lint or hair. Try using an air blower to clear it. The main fan vent is at the back of the machine on the left as you face the screen. If you know how to disassemble the machine make sure you clean the fan out by taking the top off and clearing it with dust. The dust can be impossible to see without opening the fan.

2) Poor connection between the GPU and the Nvidia chip. HP contractors have been using thermal pads for this job, but they are pretty useless over a long period. They need replacing. Most repairers are using copper shims and thermal paste for this job. The same goes for the CPU and Northbridge chips.

Once the GPU has gone (symptoms are no Wifi, black screen, blocky screen, machine won't boot etc), it's too late, your motherboard will need replacing or your existing one repairing. The problem is that the high temperature has caused the solder to crack or break on or more of the joints of your video chip (GPU).

There are many online businesses offering DVxxx repair. Some offer reflow services which melt the solder on your GPU chip to get it working again. This is really a short term solution however, and it can be as little as a few days before the problem returns. Reballing your GPU is a better solution, the GPU is removed, the solder is replaced, and the GPU is then put back onto the board. This is a time consuming and often expensive business though.

If you are about to get your motherboard repaired find out if the repairer is going to do a reflow or a reball. Most repairers offer reflow because it is quicker and cheaper.

Some repairers also offer a "fan modification" to improve the fan circulation of your DV9xxx. This is often as simple as snipping a wire to the fan so that it is permanently on at full speed. This may sound like a good idea but the resulting noise means it is more like working with a jet engine rather than a laptop.

A HP repair will involve your motherboard being replaced with a new one.

Other things you can do to help your machine stay cool:

* NEVER rest your machine on a soft surface like a chair or bed where the vents are smothered.
* Regularly blow your fan vents with compressed air
* Use felt pads or similar (the type that are used on the bottom of legs of chairs for example) to raise the machine further off the surface. Try to get the rear of the machine 15mm or higher than it is now.
* Running the machine on the battery will create less heat to dissipate
* Use a power profile in Windows that allows your machine to rest.
* Switch off your machine when you are not using it rather than let it sleep.

Good luck to all of you with a HP DV9xxx!


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