"I was curious to see who the IC manufacturer was, which Lexar blanked out in the SPD data, leaving only the primary timings as a hint of what these could be. Low and behold, I still do not know. That is officially due to the part number not getting a ping on the interwebs. These are not branded with a Lexar logo even though they are clearly just sourced, which makes my job a bit easier. A good hint is the big "S" for SpecTek, a Micron division who sources and sells what are considered generally lower-binned Micron ICs."
The mark code (PP059) corresponds to "PRN2G8Z32DD8JC" (you can put it on
SpecTek's site, here) and according to their
datasheet they are 16Gb (as density) of DDR4 SDRAM. Are they Rev.E? Rev.B? I don't know, but who knows? There aren't any info about it, also Thaiphoon doesn't show the model of ICs.