Can't access Mitsumi CD ROM drive on Compaq Prolinea 575. Compaq diagnostics & BIOS recognize drive, but when try to access drive from Win 3.1 or DOS get error msg "Invalid Drive". Tried Mitsumi driver and Compaq driver with no luck. Suggestions appreciated!

jwm

Some things to consider:

Even though the Compaq BIOS & Diags see the drive, could it be proprietary? Also some Compaqs simply won't support a drive unless it's on a specific IDE port.

If it is an IDE drive, connected on the cable with the HDD, is it set for "slave"?

If IDE and all else fails, try a generic CD-Rom driver (Google "ide158.exe")

its *probably* a proprietary piece
in which case you will need to find the drivers for the soundcard it plugs into as well as for the cd drive itself
these drivers are specific to your hardware and you probly will not find them

i have a few of these stupid things lying around collecting dust, they suck. usually they are so slow its not even worth the time

if it is ide then you will still need to load a cd rom driver in your config.sys
so in this case get the generic one

what is painfully obvious to one person might be just painful to the other

Thanks for suggestions!
I've installed this same IDE Mitsumi CD drive on several other computers(including a Prolinea 5133) under DOS 6.22, WIN3.1, WIN95, and WIN98 using the latest Mitsumi driver which works in all cases. For the Prolinea 575, the cable is plugged into the secondary IDE (which is labeled "CD ROM") and the drive is jumpered as "master". The autoexec.bat and config.sys files have the correct Mitsumi driver lines inserted and load normally during startup. But the system does not see a "D:" drive. Do I need a unique driver for the Compaq 575 or what? Thanks again!

jwm

i have no ideas
if your bios detects it and you loaded the drivers then well, i just dont know
its beyond me

what is painfully obvious to one person might be just painful to the other

>>The autoexec.bat and config.sys files have the correct Mitsumi driver lines inserted and load normally during startup. But the system does not see a "D:" drive.<<

Do you get any errors after the drivers for the CD are loaded in autoexec.bat/config.sys? Also, are you just having trouble in Win 3.1 or DOS & 3.1 (assuming by your O/S description above, that's what you're running)?

try setting the drive jumper to cable select compaq seems to like its drives set to cable select

Thanks to all of you for taking the time to help.

me_flea had the solution...just setting the jumper to cable select made it work.

Thanks again!