Latitude E6520 / Windows 7x64 Ent.

Missing CD-DVD drive upon wakeup. So far, Dell support is unable to fix the problem

Thank you.
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Was there an attempt made to delete it in Device Manager and let it detect and install?  Or is it not even showing in Device Manager?
have you tried -- > turned the laptop off completely...remove the cd drive and re-inserted the cd drive back in.

also check if there are any bios updates or cd drive driver udpates...
Raymond PengSystems EngineerCommented:
Can you make sure it's visible in the BIOS?  Perhaps the drive is not seated securely?
Try another DVD drive if you one available to swap out and test.
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What troubleshooting have you tried so far?  Have you tried removing the drive and reseating it?  Then reboot and test the wakeup.  Also you might try going to Device Manager, uninstalling the DVD drive, then scan for hardware changes and let it re-detect it.
cohhelpAuthor Commented:
All above was done yesterday with Dell tech online.
The laptop detects the drive on cold reboot only and misses it after wakeup.
Sounds like either the DVD drive or the connector on the motherboard is faulty.  The warranty should allow you to replace them both.
Raymond PengSystems EngineerCommented:
swap out the drive?
Danny ChildIT ManagerCommented:
have you tried a chipset driver update?

here's the page to enter the Service Tag (from the underside of the laptop)
cohhelpAuthor Commented:
Info for everyone interested to help fix this problem:
The drive was swapped with a brand new from Dell, all chipset drivers are up to date, etc.
That means the troubleshooting on hardware level doesn't fix the problem.
So far, it looks like the problem is with Win 7x64 OS sleep mode.
Upon wakeup we can see the disappearance of the optical drive.
Any idea will be really appreciated.
Thank you.
Was the replacement drive imaged from the current drive or did you rebuild with a clean install?
cohhelpAuthor Commented:
Only the optical drive was swapped, the HDD wasn't rebuilt.
Ok, do you have an identitcal model that you can swap the HDD?  Once the swap is done, reboot the problem laptop and put it to sleep.  Then wake it up to see of the CD drive is there.  If it is not even with the different HDD, then the motherboard has problems.
cohhelpAuthor Commented:
It was already tested, the motherboard is ok.
It is a sw problem / conflict, and I'm just hopping somebody sussesfully solved it.
Thank you.
Ok I did some reading and you may have already looked at this, but in the BIOS, is the SATA mode on AHCI or IDE?  You mentioned the chipset drivers are up to date, did you also update the SATA drivers?  There should be one for Intel rapid storage technology here on dell's site.
cohhelpAuthor Commented:
Dell replaced the laptop.

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cohhelpAuthor Commented:
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