On Nov 2, 10:39 am, Britt Dodd <[email protected]> wrote:
> You can straighten pins with a credit card or three, whatever fits in the
> spaces between the pins, then go at 90 degrees to the bent pin. After
> getting all 4 sides, the pin should be straight.
I like to use a PCI slot cover for that. It's a nice stiff flat
piece of metal which works well as a pin straightener.
The hazard in removing the 68040 (or any PGA chip) with a screw driver
is bent pins. The pins are bent when one accidentally raises one edge
of the PGA chip up out of the socket while the opposite edge stays in
the socket. This causes the pins on the engaged edge of the chip to
bend severely.
One solution is to use a twisting motion. Start with a very small
(narrow blade) flat head screwdriver and do not pry the chip up.
Instead insert the screwdriver between the edge of the chip and the
socket and gently rotate the screwdriver to raise the chip. Go
around and do this on all four edges of the chip. The advantage of
this method is that the amount by which you can raise one edge of the
chip is limited to the width of the screw driver blade. And if you
rotate carefully, you can control that to limit it further.
Jeff Walther
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