Reply 46960 of 49435, by BitWrangler
CD boot was not a guaranteed feature, only becoming more and more common until it was nearly ubiquitous, I came across a 2000s board that didn't have a CD boot option and was rather amazed. Can't recall though which it was at the moment. That goes for motherboards as well as in era optical drives, though I think the drives were more ahead of the curve and got to be mostly bootable by 8x speed.
Though the 2006 does support it, but not as default option, has to be specifically enabled...
"Boot SequenceAllows the system BIOS to first try to boot the operating system from theselected disk drive.The options are: A, C (Default); C, A; C, CDROM, A;CDROM, C, A." in the BIOS Features menu.
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.