I have had this problem on 9 out of my 12 Evo N620c laptops, but no
other computers.

When either uploading or downloading an image from the ZDM7 server (on
Linux), the laptop will freeze. When rebooted, the computer will power
off after the POST. On 7 of the machines, a system board replacement
fixed the issue, but now I have 2 that continue to "act up" after the
system board replacement.

I was wondering if anyone else has seen this issue and if they have a
fix for it.

Thanks in advance,