Realtek Digital Output (Optical) disappeared - Asus Z170 Pro Gaming

[DeNoRainbow]

After a clean install of Windows 7 and flashing my Bios from v1105 (I think it was) to v1805 the Realtek Digital Output (Optical) is no longer in my Sound Control Panel.

This is what I am refering to how there is both Realtek Digital Output and Realtek Digital Output (Optical)

But I no longer have the (Optical) variant and that is the only that I use in order to achieve 5.1 surround.
I can't workout what has happened. I have tried reverting the Bios to any old version, using EZ Flash 3 on the Bios, and I'm getting the error saying "This file is not a proper bios." (Or something similar)
Does this Mobo not support that Sound Device like I'm used to?
Would the Bios flash have broken that device?


Thanks for any advice!


Specs:
Mobo - Asus Z170 Pro Gaming
CPU - Intel i5 6600K
RAM - Kingston 8GB
GPU - Nvidia GTX 670
Audio - Astro A40 w/ MixAmp Pro


**UPDATE**
This is what my Sound actually looks like as opposed to the above image.

 

[Ironsounds]

hello... Realtek software is EASY to find and DL... https://www.asus.com/us/Motherboards/Z170-A/HelpDesk_Download/
get your OS and DL the Realtek... install it from windows... reboot and see if it shows up... B /

 

[DeNoRainbow]

hello... Realtek software is EASY to find and DL... https://www.asus.com/us/Motherboards/Z170-A/HelpDesk_Download/
get your OS and DL the Realtek... install it from windows... reboot and see if it shows up... B /

Sorry I already have the Realtek Drivers installed I am just missing the Optical Device. I have the Realtek Digital Output device that is shown in the image, but I am missing the device that is below that (The Realtek Digital Output(Optical) Device).

Also that link was for the Z170-A, not the Z170 Pro Gaming which is what I have.

 

[Ironsounds]

Hello... open up the device manager-Realtek APP and set all Output for the "Hardware" card there... Ok? B /

 

[DeNoRainbow]

Hello... open up the device manager-Realtek APP and set all Output for the "Hardware" card there... Ok? B /

Sorry are you talking about the Realtek HD Audio Manager? That still does not have the Optical output.

 

[Ironsounds]

Hello... Right/Left Click on the Panel/Tab option on the screen... B /
Try clicking on the ICON or picture of it too B /

 

[DeNoRainbow]

Hello... Right/Left Click on the Panel/Tab option on the screen... B /
Try clicking on the ICON or picture of it too B /

I'm sorry you've lost me. I know how to set devices to default and all that. My problem is that the entire Realtek Digitial Output "(Optical)" device has disappeared from my settings.

 

[Ironsounds]

Hello... Did you say you were in your BIO"s? B / Did you loss ALL Realtek outputs?

 

[DeNoRainbow]

Hello... Did you say you were in your BIO"s? B / Did you loss ALL Realtek outputs?

Yeah I updated my BIOS to the latest version when I did a Clean install of Windows.
No, as shown in the second image that I have updated into the question, I still have the standard "Realtek Digital Output" device and the main Speaker device is still there. Its just the "Realtek Digital Output(Optical)" device that has gone missing on my computer.

 

[Ironsounds]

Hello... there is Realtek "master" on/off setting in the BIO's B /
But... if the hardware is recognized By windows then it's on by 'default" B /

 

[Ironsounds]

Hello.. LOL... OK... Yes your are Device Manger-sound that is the "Master" panel for the Outputs' of Window OS... You are in the right place...
Please... Right Click the green item and disable... and Right click 'Enable" Digital Output (Optical)

 

[DeNoRainbow]

Hello... there is Realtek "master" on/off setting in the BIO's B /
But... if the hardware is recognized By windows then it's on by 'default" B /

In the Bios there is the HD Audio Controller setting, which is ON. But that single device is still missing.

 

[Ironsounds]

Hello.. LOL... OK... Yes your are Device Manger-sound that is the "Master" panel for the Outputs' of Window OS... You are in the right place...
Please... Right Click the green item and disable... and Right click 'Enable" Digital Output (Optical)

 

[DeNoRainbow]

Hello.. LOL... OK... Yes your are Device Manger-sound that is the "Master" panel for the Outputs' of Window OS... You are in the right place...
Please... Right Click the green item and disable... and Right click 'Enable" Digital Output (Optical)

But there is no Digital Output (Optical) to enable. That's the issue.

 

[Ironsounds]

Hello... THX for Pointing that out... Hmm that would mean it is a Hardware problem... the BIO's flash setback a option here? B /

 

[DeNoRainbow]

Hello... THX for Pointing that out... Hmm that would mean it is a Hardware problem... the BIO's flash setback a option here? B /

Yeah that's what I think. The only problem is that when I try to downgrade the BIOS to an older version is get an error saying "This file is not a proper BIOS!" I've also tried re-flashing the BIOS with the current version, this seems to be able to flash but it doesn't fix the problem.

 

[Ironsounds]

Hello... Typically I goo the USB2 flashable/Bootable route... for MB Bio's communication... B )
Did ya use a windows app?

 

[DeNoRainbow]

Hello... Typically I goo the USB2 flashable/Bootable route... for MB Bio's communication... B )
Did ya use a windows app?

No I used EZ Flash 3.

OK, how do I go about using a flashable USB?

 

[Ironsounds]

Hello... Well... you seem educated in these matters... B D it's as simple as... the Correct way is to get the revision # off the MB... there is a Epoxy paint and spot they DO this... Ok? B /... that is will Dealing OLDER Hardware... but this will "Correct" any BIO's flash error messages... Ok? B )
First lets get the file... ?.BIN for your MB(revision) #(none-indicated)
https://www.asus.com/us/Motherboards/Z170-PRO-GAMING/HelpDesk_Download/

 

[DeNoRainbow]

Hello... Well... you seem educated in these matters... B D it's as simple as... the Correct way is to get the revision # off the MB... there is a Epoxy paint and spot they DO this... Ok? B /... that is will Dealing OLDER Hardware... but this will "Correct" any BIO's flash error messages... Ok? B )
First lets get the file... ?.BIN for your MB(revision) #(none-indicated)
https://www.asus.com/us/Motherboards/Z170-PRO-GAMING/HelpDesk_Download/

Sorry where was the revision number? On the physical MB or do you mean the BIOS version?

 

[DeNoRainbow]

Hello... Well... you seem educated in these matters... B D it's as simple as... the Correct way is to get the revision # off the MB... there is a Epoxy paint and spot they DO this... Ok? B /... that is will Dealing OLDER Hardware... but this will "Correct" any BIO's flash error messages... Ok? B )
First lets get the file... ?.BIN for your MB(revision) #(none-indicated)
https://www.asus.com/us/Motherboards/Z170-PRO-GAMING/HelpDesk_Download/

Here is a screen capture from CPU-Z. There are two Rev. Numbers on there.

 

[Ironsounds]

Hello... Good question... B ) use the DL provided there ...and you will get right one B )
Well you have one of them dual boot models...I keep it clean and simple... if ya play/try it.. I can recover you... with DOS mode B D

 

[DeNoRainbow]

Hello... Good question... B ) use the DL provided there ...and you will get right one B )
Well you have one off dual boot models...I keep it clean and simple... one a try it.. I can recover you... with DOS mode B D

Sorry what am I downloading? The BIOS .CAP file?

 

[Ironsounds]

Hello... Support OS Drivers.... BIOs it is a ?.BIN. file of "1's" & "0's"... write it down... you will need it later... (hint hint) B /

 

[DeNoRainbow]

Hello... Support OS Drivers.... BIOs it is a ?.BIN. file of "1's" & "0's"... write it down... you will need it later... (hint hint) B /

Downloading BIOS versions from "https://www.asus.com/us/Motherboards/Z170-PRO-GAMING/HelpDesk_Download/" dowloads a .ZIP file. Example: Z170-PRO-GAMING-ASUS-1805.zip
Unzipping that file gives me a .CAP file. Example: Z170-PRO-GAMING-ASUS-1805.CAP