Internal drive wont mount via Sonnet ATA100 card

My Sonnet Tempo ATA100 pci card does not recognize my 200GB Seagate IDE hard drive in my G4 tower. The drive appears fine on desktop when connected to original mother ribbon. What can it be?

Hello Web dude,
Several thoughts....
Controller cards can be persnickety about what they see (or allow to be seen).
Do not rush out to buy another controller card. If you have access to another controller card (free), by all means try substituting it.
Sonnet controller cards are bashful, and are not always seen by your Mac even when they are working. This makes diagnosing problems more difficult. They should be seen by Disk Utility however, even if they are not seen by the Apple profiler.
A controller card sees its hard drive as a SCSI drive, and the hard drive needs to be formatted when connected to the controller card in order to install its SCSI drivers. (This is, of course, difficult when you can't find the drive in the first place.)
Try different configurations: jumper settings, as slave to another drive if you have one, different cable or different socket on the controller card, resetting the PRAM and/or the motherboard, mounting in a different Mac if you have one handy --- substituting with known-good parts is always a good idea.
Check the PRAM battery.
Reset the start-up disk.
Repairing disk permissions is never a bad idea.
Try booting to an installer disk, or a utility disk such as Disk Warrior.
As example: last week my spare Mac (DA) saw three drives, one master, two slaves, all on an ACARD 6280 controller card. Just now, as I fired it up to reply to your post, it refused to see the first slave drive. Anywhere... Solution was to remove the second drive from the system, boot, note that the Mac now saw the first slave drive, replace the second slave drive into the system, boot again. Voila! Back again! A genius! Go figure!
Good luck... Jon

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