Inconsistent SPD info detected

[memetic]

Under: "System (I)nfo > View detailed RAM (SPD) info > Slot [x] > page 1 field [Type detail]" I see "Synchronous, Unbuffered (Unregistered)", but on the page 3 I see the field "Registered: Yes"

I don't understand why these disagree.
Are they referring to different RAM attributes, or does it indicate that the manufacturer has written incorrect information into the SPD EEPROM?

[David (PassMark)]

What are the correct details for the RAM (according to the specs?)

Can you post a debug log?
https://www.memtest86.com/tech_debug-logs.html

[David (PassMark)]

Some additional information:

The text "Synchronous, Unbuffered (Unregistered)" comes from SMBIOS. That is to say the text is set by the machine's firmware.

The value on Page 3 comes from SPD data.

So likely there is a firmware/SMBios bug on your machine. You could report it to the system vendor, but they probably won't care.

[memetic]

What are the correct details for the RAM (according to the specs?)

According to this Samsung m393a2k43bb1-crc they should be "Registered" with ECC.

I have always been confused about the difference between "registered" and "buffered" - are these one and the same?

Can you post a debug log?

Attached.
The txt file is what MemTest86 showed in the detailed SPD info screens.

[memetic]

..."Synchronous, Unbuffered (Unregistered)" comes from SMBIOS...set by the machine's firmware...likely there is a firmware/SMBios bug on your machine. You could report it to the system vendor, but they probably won't care.

I will report it. I have an ongoing email conversation with ASRockRack too. They have so far actually been supportive.