Supermicro X12SPi-TF motherboard will not start up with optical drive attached.

I have a build using a Supermicro X12SPi-TF motherboard. The problem I'm running in to is that as soon as I connect one of my optical drives (LG Electronics WH16NS40) is connected the system will not start up.

It doesn't seem to matter how I do the connection. I've tried:

1. Using a SFF 8643 Forward breakout to SATA cable.

2. Connecting from one of the two SATA DOM SATA ports on the motherboard

3. Installing an IBM M1015 (flashed to IT mode) card and connecting using a SFF 8087 forward breakout cable to SATA connection.

In any of those settings when I turn on the power supply the motherboard will get power as evidenced by the onboard LED flashing, but when I press the power button, the fans start to spin for 1 or 2 seconds then stop spinning and nothing else happens. The motherboard LED continues to flash.

Disconnecting from the optical drive (but leaving cables otherwise attached to the card or motherboard will let the system start normally.

The optical drives have power (the LEDs on them light up) but making a connection to a SATA connector makes the startup fail.

I've checked the sSATA and SATA BIOS settings which are configured for AHCI.

Where you specify SATA connection type it is set to Hard Drive (you can also choose Solid State Drive) but not optical drive.

I am not trying to actually boot from an optical drive, only have one connected to the system to use once booted.

Boot mode is set to UEFI and not legacy.

Any ideas on why connecting an internal optical drives cause startup to fail? I'm at a loss at this point.

Thank you for any help.

Kevin