Thanks for the responses.
To answer the questions...
- It is an IDE connection.
- I'm fairly confident it's not the connecting, I've plugged both ends in and out a couple dozen times by now. I've tried both power supply connections (labeled P8 and P9) and both drive connections on the IDE cable to the same result.
- The cable is correctly hooked up, mother board side is in the right place. The ends are keyed so they will only snap on if lined up correctly and right side up.
- The power supply went out during the original RAM install something like this... Shutdown computer. Unplug power. Add RAM. Plug in power. Light on mother board turns on, but computer would not power on.
While troubleshooting the power supply, I removed the Li-Ion battery. Could that have cause some kind of setting to change?
So is the next step to try a new cable? Is it possible when the power supply went out it damaged either the cable or drive or both?
Also, there is another thread on this forum that recommended editing a registry folder to remove lower and upper limit files...I tried that and that didn't work either.