My theory about this is that the BIOS has an issue, but I could easily be wrong, as there are a lot of settings in it. Here's the issue:
On a Win7 machine, I dl'd the retail Win8/Pro x64 from MSDN (it's called en_windows_8_x64_dvd_915440.iso) and burned a DVD with PowerISO.
The Win8 machine to-be: Asrock B75M-DGS (Bios 1.20), with CSM disabled. Blank SSD. It will not show the above DVD on the boot menu when booting the system. The boot menu is entirely blank, in fact.
When CSM is enabled (not that I wanted to install that way), it does show up.
When CSM is disabled again, and I use a specially-made USB stick, I'm able to choose the Win8 install and proceed. I did it this way, but thought I'd report my experience with not being able to use the DVD.
I've read of an issue like this when using a DVD created via the Win8 Upgrade Assistant, but this isn't that.
I poured over UEFI to see if there were any further settings pertaining to this, but I don't think there are. Based on another thread, I did try using Launch EFI Shell from filesystem device, but, according to the manual, all it does is search for a file called Shell64.efi, which doesn't exist (why wouldn't it search for bootx64.efi, which does exist?). If, as some of the threads mentioned, it let me open a UEFI command prompt, I apparently could have typed this to get the DVD to boot (possibly fs1: instead), but it never let me.
fs0:
\EFI\BOOT\BOOTX64.EFI
On a Win7 machine, I dl'd the retail Win8/Pro x64 from MSDN (it's called en_windows_8_x64_dvd_915440.iso) and burned a DVD with PowerISO.
The Win8 machine to-be: Asrock B75M-DGS (Bios 1.20), with CSM disabled. Blank SSD. It will not show the above DVD on the boot menu when booting the system. The boot menu is entirely blank, in fact.
When CSM is enabled (not that I wanted to install that way), it does show up.
When CSM is disabled again, and I use a specially-made USB stick, I'm able to choose the Win8 install and proceed. I did it this way, but thought I'd report my experience with not being able to use the DVD.
I've read of an issue like this when using a DVD created via the Win8 Upgrade Assistant, but this isn't that.
I poured over UEFI to see if there were any further settings pertaining to this, but I don't think there are. Based on another thread, I did try using Launch EFI Shell from filesystem device, but, according to the manual, all it does is search for a file called Shell64.efi, which doesn't exist (why wouldn't it search for bootx64.efi, which does exist?). If, as some of the threads mentioned, it let me open a UEFI command prompt, I apparently could have typed this to get the DVD to boot (possibly fs1: instead), but it never let me.
fs0:
\EFI\BOOT\BOOTX64.EFI
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