A poltergeist in my machine?

[Holm Tiffe]

Noel Chiappa wrote:

[..]
> - and the memory still works fine!
> 
> 
> Does anyone have _any_ idea WTF is going on here?!?!
> 
> I feel like I'm in some sort of AI koan...
> 
> 	Noel

- bad solder joint
- bad via
- thin whisker
- bad wire bonding in the chip

..that are the possibilities come to mind.

I would change the and gate chip and resolder the vias in it's area.
Cleaning both sides of the PCB with a thootbrush and isopropanol
isn a good idea anyways.

Regards,

Holm
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