Wow, you are really stressing our memories!
First, a quick history. Intel first started shipping (945 chipset-based) Intel Desktop Board products that utilized the Tiano BIOS core in 2005. Tiano was the Intel-internal code name for the Extensible Firmware Interface (EFI). Also in 2005, Intel terminated its exclusive development of EFI and contributed both the EFI Specification and the Tiano source code to an industry working group. This group became known as the Unified EFI Forum and the specification it released (as v2.0) in 2006 was called the Unified Extensible Firmware Interface (UEFI). Intel continued to release Intel Desktop Board products with BIOS based upon the Tiano BIOS Core (which was incrementally being converted over to UEFI standard code) until 2010. By that time, the major Independent BIOS Vendors (IBVs) had converted to UEFI-based BIOS and Intel's subsequent Intel Desktop Board (and later NUC) products utilized versions of American Megatrends Inc. (AMI) Aptio BIOS Core.
So, the simple part of the answer is that *ALL* of the boards/systems that you listed utilized a BIOS with a UEFI core. The more complex part of the answer (and which really stressed our memories) surrounds which of these boards/systems had a BIOS that supported the UEFI Boot Enable/Disable capability. Since we could not grab boards and check for this capability directly, we had to rely on our aged memories. To the best of our recollection, this capability was present in the Intel Desktop Board products that utilized the 4 Series chipset. This means that, from your list, only the Johannesburg board (DQ35JO) might not have the UEFI Boot Enable/Disable capability (we say "might not" because we just can't remember for sure ).
Hope this answers it well enough,
...S
