What is the arrangement of diagnostic LEDs?

I have been searching and the best guide to the LEDs I can find it here:
How to find and read the Diagnostic LEDs

But that one only shows 4 LEDs. This model has 5.
I did find this thread with a configuration of 5 LEDs, but it is a different configuration of LEDs. What are the 5 diagnostic LEDs?

This model has 5 LEDs but they have 4 together and 1 separate, instead of the 3 together and 2 separate of the above link. Additionally, these LEDs are arranged horizontally and not vertically. They are located towards the bottom right of the logic board, not near the power supply or fan as in other examples found. Photo attached.

I suppose it is possible there are other LEDs somewhere on the board, but none that I've noticed.

If these LEDs follow the same general idea as those previous then the biggest question is do they follow a left=1 to right=5 convention, or a right=1 to left=5 convention, or something else all together? If they do not follow the same diagnostic principals as the above linked examples, how to read these ones?

Thanks to anyone who can help!