cannot recognize cd rom drive.. dell dimension 8400

cannot recognize cd rom drive.. dell dimension 8400. yes, it's activated in the bois ..pta drive 0. i've tried activating all of them and when i go to my computer, it's not there! there is power at the cd rom. it'll take a cd, but i can't see data.  thanks.
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evilrixConnect With a Mentor Senior Software Engineer (Avast)Commented:
Have you checked the jumper settings to make sure you've got it set to master/slave or cable select as appropriate?
davekuharAuthor Commented:
i've tried master and cable select..!
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davidis99Connect With a Mentor Commented:
That model came out about 2.5 years ago - it's possible the CD drive's laser is misaligned, and can't read discs anymore.  Have you tested replacing the drive?
PUNKYConnect With a Mentor Commented:
Is it newly OS installed? and the drive was working before?
nobusConnect With a Mentor Commented:
try to boot from a bootable cd - then you're sure it can read a cd  - pick a xp cd, or one of these :      Knoppix                                     BartPe

and of course, it can be bad; test it on, another PC, or test with another cd drive on this one
Michaelsoft73Connect With a Mentor Commented:
So it doesn't see the cd drive in my computer?

I have had this problem before, I removed the lower and upper filters keys from the registry and it fixed it.
Goto start > run and type regedit.exe  press ok.
Browse to:
In this folder there should be something called "Lowerfilters"
Delete this key and then restart your computer.
It worked for me.

Cheers :)

evilrixSenior Software Engineer (Avast)Commented:
I'd suggest backing up the key before you delete it -- just in case :)
Yeah good idea! lol
davekuharAuthor Commented:
davekuharAuthor Commented:
i guess the best thing to do is to split the points for effort
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