In article <
[email protected]>,
Winston <
[email protected]d> wrote:
Back in the days of the SPARCstation IPX (4/50), Weitek sold the
PowerUp processor. IIRC, it was often sold with a chip puller people
praised for how easily it removed the original CPU. I forget whether
Sun sold similar chip pullers.
My questions are: Did those chip pullers have 2 prongs or 4 (i.e.,
did it pry the chip up from all four sides or just two), and is there an >equivalent chip puller around today? A check of Ebay and Google turned
up only 2-prong chip pullers for chips with 124 pins or less.
It pulled on two sides of the chip because it had to press down on
the circuit board on the other two sides. Also, it was a combination
puller and pusher:
<
http://www.abc-cpu.com/weitek1.JPG>
<
http://www.abc-cpu.com/weitek2.JPG>
The 2nd picture (weitek2.JPG) is the better one to understand how
the tool worked.
Both pictures show the tool configured cfor insertion. The wide
black sides on either side have the L shaped tips to hook under the
cpu socket. The white knob on the side loosened the black sides so
the tips could spread apart to fit around the socket, then when the
tips are under the socket, you would tighten the white knob to keep
the tips hooked under the socket. Turn the black T-handle on the top
and it will move the black square center block down to press the cpu
chip into the socket.
To extract the chip, you loosen the white knob more so the black sides
spread wider. The black center block comes out and you flip it 180
degrees and put it back in between the black walls. Now the black
center block's red "sides" are sticking down past the black sides'
L-shaped tips. Put this over the socket and now the red sides rest on
the circuit board on opposite sides of the cpu socket, and the tips of
the black sides hook under two edges of the cpu chip. Turn the black T-
handle and the center block's red sides push down on the circuit board
while the L tips on the black sides pull up on the cpu chip to extract
it from the socket.
It was a very elegant design.
^Greg
--
Do NOT reply via e-mail.
Reply in the newsgroup.
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)