i, for one, am just lost in the alphabet soup of server ram denominations these days https://www.anandtech.com/print/13950/advantech-unveils-32-gb-sqram-ddr4-dimms-for-hpc Advantech Unveils 32 GB SQRAM DDR4 DIMMs for HPC

and yes, that is not a heat spreader on the rugged model, but a cosmic ray shield :stuck_out_tongue:

-40~85℃

impressive

i'm assuming that's storage temps and the one above is operational temps

dunno what'd break below that, maybe the copper comes off the contacts per asymmetric contraction or something like that

or -40 is the lowest routinely tested as that's a pretty standard lab freezer

and i guess operational temps are only with conditions with humidity as doing ESD at below freezing is a different game