OK.
This should be simple, but it aint.
MB = ASUS Rampage III Formula.
I plugged the Toslink Optical into the spdif on the board.
I loaded the RealTek drivers.
No sound.

MB on board sound enabled in the BIOS.
Toslink cable, receiver and speakers are known in good working condition.
In control panel RealTek digital audio is enabled and default.
W............T..............F?
This should be simple, but it aint.
MB = ASUS Rampage III Formula.
I plugged the Toslink Optical into the spdif on the board.
I loaded the RealTek drivers.
No sound.
MB on board sound enabled in the BIOS.
Toslink cable, receiver and speakers are known in good working condition.
In control panel RealTek digital audio is enabled and default.
W............T..............F?