It appears the first (3) fields are encoded in little-endian for SMBIOS Ver >=2.6. Here is the info from the document and a suggested order:

Although RFC4122 recommends network byte order for all fields, the PC industry (including the ACPI,
UEFI, and Microsoft specifications) has consistently used little-endian byte encoding for the first three
fields: time_low, time_mid, time_hi_and_version. The same encoding, also known as wire format, should
also be used for the SMBIOS representation of the UUID.
The UUID {00112233-4455-6677-8899-AABBCCDDEEFF} would thus be represented as:
33 22 11 00 55 44 77 66 88 99 AA BB CC DD EE FF.
If the value is all FFh, the ID is not currently present in the system, but it can be set. If the value is all 00h,
the ID is not present in the system.

The array order would be:
first 8 bytes: p[3], p[2], p[1], p[0], p[5], p[4], p[7], p[6],
last 8 bytes:p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]

I will work on a patch for the PAS file.

I will work on a patch for the PAS file.

Still WIP?

It appears the first (3) fields are encoded in little-endian for SMBIOS Ver >=2.6. Here is the info from the document and a suggested order:

Although RFC4122 recommends network byte order for all fields, the PC industry (including the ACPI, UEFI, and Microsoft specifications) has consistently used little-endian byte encoding for the first three fields: time_low, time_mid, time_hi_and_version. The same encoding, also known as wire format, should also be used for the SMBIOS representation of the UUID. The UUID {00112233-4455-6677-8899-AABBCCDDEEFF} would thus be represented as: 33 22 11 00 55 44 77 66 88 99 AA BB CC DD EE FF. If the value is all FFh, the ID is not currently present in the system, but it can be set. If the value is all 00h, the ID is not present in the system.

The array order would be: first 8 bytes: p[3], p[2], p[1], p[0], p[5], p[4], p[7], p[6], last 8 bytes:p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]

I will work on a patch for the PAS file.

Thanks for your explanation, here's the PR to resolve: #29