We have a PCB of a VME machine of ours and it has some kind of white corrosion on it. Does this impact the functionality of the machine and what could it exactly be?

white stuff on pins

  • \$\begingroup\$ Looks more like residue; have you tried cleaning it? \$\endgroup\$ – Peter Smith Nov 26 '19 at 13:06
  • \$\begingroup\$ Has any functionality been impacted? Is this RoHS lead-free solder? Probably flux residue. Try cleaning with lacquer thinner or isopropyl alcohol and an old toothbrush. It is probably harmless, but personally I detest "crud between the legs." \$\endgroup\$ – rdtsc Nov 26 '19 at 13:35

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