Memtest86+ report on memory type

Upon booting Librem 13 Version 2 laptops, one may select item 2. from SeaBIOS menu:

SeaBIOS (version rel-1.10.0-53-gdd9bba5)
Select boot device:

1. AHCI/0: ...
2. Payload [memtest]
3. Payload [coreinfo]

The Memtest86+ utility starts testing the volatile memory with various data patterns, and displays status information including the memory type:

Memtest86+ 5.01 coreboot 001|

| RAM: 1552MHz (DDR3-3105) - BCLK: 100
| Timings: CAS 19-15-15-31 @ 192-bit Mode

Purism Librem 13 v2

Is the RAM type therein consistent with DIMM device(s) installed by Purism?

No. The installed (and latest) version 5.01 of Memtest86+ stems from 2013 and cannot handle DDR4 memory because it didn’t exist back then.