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8-8 Dell PowerEdge 4100/180 and 4100/200 Systems Installation and Troubleshooting Guide
To remove the microprocessor chip, pull the socket
release lever straight up until the chip is released (see
Figure 8-7). Then lift the chip out of the socket.
Leave the release lever up so that the socket is ready
for the new microprocessor.
Figure 8-7. Removing the Microprocessor
5. Unpack the new microprocessor.
If any of the pins on the microprocessor appear bent,
see Chapter 11, “Getting Help,” for instructions on
obtaining technical assistance from Dell.
6. Align the pin-1 corner of the microprocessor chip
(see Figure 8-8) with the pin-1 corner of the
microprocessor socket.
NOTE: Identifying the pin-1 corners is critical to
positioning the chip correctly.
Identify the pin-1 corner of the microprocessor by
turning the chip over and locating the tiny gold fin-
ger that extends from one corner of the large central
rectangular area. The gold finger points toward
pin 1, which is also uniquely identified by a square
pad.
Figure 8-8. Pin-1 Identification
7. Install the microprocessor chip in the socket (see
Figure 8-9).
If the release lever on the microprocessor socket is
not all the way up, move it to that position now.
With the pin-1 corners of the chip and socket
aligned, set the chip lightly in the socket and make
sure all pins are matched with the correct holes in
the socket. Because the system uses a ZIF micro-
processor socket, there is no need to use force (which
could bend the pins if the chip is misaligned). When
the chip is positioned correctly, it should drop down
into the socket with minimal pressure.
When the chip is fully seated in the socket, rotate the
socket release lever back down until it snaps into
place, securing the chip.
CAUTION: Be careful not to bend any of the
pins when unpacking the microprocessor chip
from its socket. Bending the pins can perma-
nently damage the microprocessor chip.
microprocessor chip
microprocessor
socket
release lever
CAUTION: Positioning the microprocessor
incorrectly can permanently damage the chip
and the computer when you turn on the
system.
CAUTION: When placing the microprocessor
chip in the socket, be sure that all of the pins
on the chip go into the corresponding holes of
the socket. Be careful not to bend the pins.
pin-1 corner
(gold finger and square pad)