No DVD (E drive Detected (Laptop HP dv6000)

I have an HP Pavillion dv6000 laptop. It had been working fiine for several years. However, my laptop no longer detects my DVD drive (E. It was intermittant at first. Starting with 3-4 hours good, then disappear. I would shut down the laptop (30-60 minutes) and it would be fine. The good time interval dropped to several minutes, then nothing. I have two other hard drives (backup) with a copy of the same OS. I tried both backup hard drives and still No DVD drive detected. I tried looking for the Lowfilter and Upperfilter in the KEYS - were not present. The Device manager reported the DVD drive was present when the drive was detected and no DVD when the DVD drive was not showing up in the 'My Computer' icon. Also, I tried reloading the drivers - didn't work. All the channels in the 'Controller' report no problems. I purchased another DVD drive, still not detected... Not sure what to try next other than taking the laptop in for repairs... Anybody have any ideas what could be causing the problem?? NEED HELP!!

Please don't double post - you won't get twice as many answers (you are more likely to annoy regulars who might otherwise have responded).

so you deleted the upperfilters and lowerfilters keys in the registry right?

Do a clean reinstall of windows if you can, all laptops comes with diagnostic software run that to test for errors

Is this an AMD/nVidia based DV6000??

If so ... it could be the well known nVidia chip defect causing you problems. I have repaired several of these over the last two years. Some had symptoms of missing wifi, computer wouldn't see mini card at all. Some came in and would power on, but not post. Or power on/off in a cycle every 2-3 seconds or so.

And I had two, out of all the ones I have repaired, that lost the dvd drive. And after repairing the defective chip, the drive simply reappeared in windows.

HP's affected models included DV series 2000, 6000 and 9000. Some F700 Compaqs and some HP TX1000 tablets. Common issues among them all, and the affected models were all AMD/nVidia based. The Intel based models didn't have these problems.

There was a lawsuit that followed against nVidia. But that's old news.

Thanks, I double posted by mistake, saw the double posting, but did not delete one. I'll delete one.
I tried to delete one posting, however it is not real clear to me how to delete it. What am I overlooking. Most likely, something obvious...

Thanks,
Mr. Jim

But have you thought about just returning the dvd drive you bought, and swapping it out for an external one, you could just ask the place you bought the new dvd drive from if they will replace it with an external drive, so no money lost and at least it will work.

Is this an AMD/nVidia based DV6000??

If so ... it could be the well known nVidia chip defect causing you problems. I have repaired several of these over the last two years. Some had symptoms of missing wifi, computer wouldn't see mini card at all. Some came in and would power on, but not post. Or power on/off in a cycle every 2-3 seconds or so.

And I had two, out of all the ones I have repaired, that lost the dvd drive. And after repairing the defective chip, the drive simply reappeared in windows.

HP's affected models included DV series 2000, 6000 and 9000. Some F700 Compaqs and some HP TX1000 tablets. Common issues among them all, and the affected models were all AMD/nVidia based. The Intel based models didn't have these problems.

There was a lawsuit that followed against nVidia. But that's old news.

It's soldered on the mainboard, BGA (ball grid array) ... I don't have the equipment to replace the chips, I simply heat them to a certain temp. And this seems to work fairly well. With about an 85% success rate. Some chips are in worse shape than others.

Once that has been done, I modify the cooling system, heatsink. HP used a little rubber-like pad between the chip and the heatsink. I can't see how this is real efficient for transfering heat. I replace that rubber pad with a 1mm copper shim and use some artic silver thermal paste on both sides of the shim when putting it back together.

With the defects the chip had, and the lack of decent cooling in the laptop, it was only a matter of time before people started to have problems. HP even extended warranty service, by one year, on models they designated as being affected. Problem there was, some models weren't on the list, but still had the problems.

I read somewhere that other brands with the same chip had problems as well. But maybe not as bad as HP had it, given the poor heatsink design.

As far as where to take it?? Maybe check some local shops, ask if they are familiar with the defect. Ask if they have any experience in repairing the problem. Or putting a bandaid on it, which is more or less what is done. You could always replace the mainboard, but you'll eventually have the same symptoms again, or worse.

Dear Katfishgr,
You appear to be the only guy with good idea of what is causing this common problem. Please what material do you use to apply the heat on the Chip, and how do you regulate the temperature of the heating so that it maintains such success percentage.?