5 ms·
> Unless/until one of them actually finds anything different ... at that point, all hell also breaks loose Boards bought weeks or months apart might have lots
by cantrevealname 7y ago
> Unless/until one of them actually finds anything different ... at that point, all hell also breaks loose
Boards bought weeks or months apart might have lots of differences in traces and components due to engineering modifications and normal changes in suppliers. Do you really think that all hell would break loose if you showed that there were differences between a Supermicro board made in March 2018 and one made in September 2018? Other than maybe Supermicro or intelligence agencies (who aren't talking), I doubt that anyone has done what you've suggested. People are busy and it's a lot of work based on an allegation and no exact place to look.
- errantspark 7y agoIs that really true? Granted I'm working on low volume stuff (1000's of units) in a niche B2B setting, but the times for rolling out a new rev of a board can sometimes be measured in quarters. Changing traces/components can have unforeseen effects for even fairly minor things, you can't just have a Tier1/2 CM tool up without a round of DVT. I doubt boards with the same PN change very often if at all, but I'd be curious to know if i'm wrong.
- nitrogen 7y agoI used to work for an electronics manufacturer. They did use xrays on a regular basis, but mostly to find cracked solder joints under ICs.