-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 19/01/16 12:34, J Martin Rushton wrote:
> Not new: I can remember seeing DEC engineers cleaning up the
> contacts on memory boards for a VAX 11/782 with a pencil eraser
> c.1985. It's still a pretty standard first fix to reseat a card or
> connector.
I used to do that as well. The contacts would come out nice and shiny
when you clean them. Then I found out that what I was actually doing
was removing the very thin layer of gold plating on the contacts and
revealing the copper underneath. That's why you should never clean
contacts with a pencil eraser, just re-seat the boards and they'll
make contact again.
Peter
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAEBAgAGBQJWnYXFAAoJEAUijw0EjkDv+4EH/0wbRnoM9KePC0UUhViIdFZ1
cpaVvNqre+zVd6qBhnzbcPT+lXINHZ5Mm/Rw0tcBqx8nYzYab5qS5hTRaZOTm6H/
aXbH6shJC4o1LW/fGDkMZ0V8ZGgz4uN4cdMYN87rVqX+J477Igs3D4yO9Gxux6K7
Eqn3+kBECL5iBiFdOf86H0UoNZuUHkfMpj95R4AJnywTCqB5W1XaVQPViNs/ge16
5Ipk7uopfbREM+F60hI889XH3s0eUXabZsTUGJWE/nUd/sNCdnAqBVD3aTuwz6gv
sb599qH8AAFX8pz0DloslLVQRb0pExbAHGM/IDMMwi1aJHGtbSDtphrt369aKJo=
=5+bz
-----END PGP SIGNATURE-----
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos
