So I have a weird issue with my DQ77MK, whereby that, no matter what boot order I set in the BIOS, the system boots to my eSATA port before booting to the internal SATA drive I have connected. I am trying to switch the drives and it doesn't work. Does anyone at Intel know if a fix is underway? It appears that some Intel NUC boards are also affected by this issue.
Sorry guys. I just answered my own question.
It appears that changing the boot order correctly must be done via the "Classic Mode" in the BIOS and not through Visual Mode. It would be nice to have this bug fixes in a future BIOS update as well as USB device enumeration fixes, such as fixing the annoying bootloader bug that occurs whenever a USB drive (based on a conventional spinning platter hard drive) takes awhile to initialize and doesn't do so fast enough.
I am sorry you are having this problem but thank you for letting us know about this issue and the workaround for it.
I will pass the feedback to the corresponding department.