DVD drive missing in device manager and system

[dcstek]

Laptop info:
HP DV9628nr, Win 7 home
The laptop came in the shop for the "drive repair" with win vista installed, the customer also wanted the win 7 upgrade. We used the USB DVD drive to do the upgrade and hoping the install would fix the issue, 2 birds - 1 rock idea. After the upgrade the drive did appear and I even tested it and it was working. Customer took it home and says it has never worked, we had them bring it bsck and sure enough, drive is missing.

Any ideas? this model is not covered under the extended HP warranty/recall.

 

[thecoldone06]

Is there anything under DVD/CD-ROM drives in device manager? Try clicking on view > show hidden devices. Does it show up then without an exclamation point or question mark?

 

[dcstek]

No, nothing in device manager. In fact the way the bios is on this machine it doesn't even list attached devices, only gives you options on boot devices. I have also been in the registry and removed the upper/lower filters that usually would work in this case... Might be a bad mobo, my next step is to pull the cmos battery and try again.

 

[NYJimbo]

Laptop info:
HP DV9628nr, Win 7 home
The laptop came in the shop for the "drive repair" with win vista installed, the customer also wanted the win 7 upgrade. We used the USB DVD drive to do the upgrade and hoping the install would fix the issue, 2 birds - 1 rock idea. After the upgrade the drive did appear and I even tested it and it was working. Customer took it home and says it has never worked, we had them bring it bsck and sure enough, drive is missing.

Any ideas? this model is not covered under the extended HP warranty/recall.

Is this right ?:

1) dvd drive was not seen with Vista
2) you used a USB dvd drive to do the 7 upgrade
3) you saw the dvd drive now with 7
4) customer says no drive in 7 either

Are you REALLY sure you checked and saw the drive in 7 ?. did you shut down and do a full reboot from power up to be sure ?.

Really sounds like you might have made a mistake, no logical reason for the drive to disappear if you powered down and back up and then tested the drive, the customer would not have done anything different.

 

[thecoldone06]

Thats a tough one man. While you have it apart taking the CMOS battery out, check out the connector where the CDROM plugs into the MOBO. Does it seem like something could be broke allowing it to come loose?

 

[dcstek]

battery was right under the ram cover, the drive gets power, push button drive opens.

After reset no drive listed, it's gotta be a mobo issue, I have tried several known working drives by the way

 

[dcstek]

Is this right ?:

1) dvd drive was not seen with Vista
2) you used a USB dvd drive to do the 7 upgrade
3) you saw the dvd drive now with 7
4) customer says no drive in 7 either

Are you REALLY sure you checked and saw the drive in 7 ?. did you shut down and do a full reboot from power up to be sure ?.

Really sounds like you might have made a mistake, no logical reason for the drive to disappear if you powered down and back up and then tested the drive, the customer would not have done anything different.

Well now I wonder my own sanity?! I am questioning if I really saw the drive listed after the upgrade. I'm at a loss

 

[Xander]

http://www.raymond.cc/blog/archives...r-driver-may-be-corrupted-or-missing-code-39/

I'm putting my money on the upper / lower filters. Seen it before.

 

[NYJimbo]

it's gotta be a mobo issue, I have tried several known working drives by the way

Not sure if I read all this correctly.....

Did you make sure that the dvd drive is listed in some manner in the BIOS ?

Can you set the DVD drive to be the primary boot device and then toss in a bootable disk and see if it boots off it ?

 

[iisjman07]

dcstek, you seem pretty confused now. I recommend starting again; forgetting all of what you have seen (or think you've seen) and pretending like this is a new machine

 

[Xander]

I'll emphasize that I've seen the UpperFilters screwed up several times with the exact same symptoms.

It's a 5 second regedit to fix it. If it doesn't work, you're only out 5 seconds and no harm done.

 

[DarDar]

I'll emphasize that I've seen the UpperFilters screwed up several times with the exact same symptoms.

It's a 5 second regedit to fix it. If it doesn't work, you're only out 5 seconds and no harm done.

Yup seen this before too. I think MS even have a quick fix button on the kb article for it now!

 

[Joe B.]

http://support.microsoft.com/kb/314060

 

[dcstek]

Not sure if I read all this correctly.....

Did you make sure that the dvd drive is listed in some manner in the BIOS ?

Can you set the DVD drive to be the primary boot device and then toss in a bootable disk and see if it boots off it ?

More explanation: This model of hp does not show what devices, hard drive, cd/dvd drive that are connected, only boot options and the ability to choose what order to boot to.

DVD is set to boot and one of my first things I tried was to boot to cd... nothing

 

[dcstek]

I'll emphasize that I've seen the UpperFilters screwed up several times with the exact same symptoms.

It's a 5 second regedit to fix it. If it doesn't work, you're only out 5 seconds and no harm done.

I stated in an earlier post that one of the first things i did was to remove the upper and lower filters. I usually have to do this on most of the cd/DVD drive issues but this was to no avail....

 

[NYJimbo]

Maybe this is nothing, but HP has some goofy online diag you can check out:

http://h20239.www2.hp.com/techcenter/HP_SystemCheck/hp_syscheck.htm

 

[dcstek]

Maybe this is nothing, but HP has some goofy online diag you can check out:

http://h20239.www2.hp.com/techcenter/HP_SystemCheck/hp_syscheck.htm

Thanks Jimbo, I'll check it out... At this point it looks like a mobo replacement