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Figure 6-10, Removing the microprocessor -8, Figure 6-11 – Dell OptiPlex Gxi User Manual

Page 82: Pin-1 corner identification -8

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6-8

Dell OptiPlex GXi Low-Profile Systems Reference and Installation Guide

Figure 6-10. Removing the Microprocessor

5.

Unpack the new microprocessor.

If any of the pins on the chip appear to be bent, see
the chapter titled “Getting Help” in your Diagnostics
and Troubleshooting Guide
for instructions on
obtaining technical assistance.

6.

Align the pin-1 corner of the microprocessor chip
(see Figure 6-11) with the pin-1 corner of the
microprocessor socket (see Figure 6-12).

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 6-11. Pin-1 Corner Identification

The pin-1 corner of the socket is the corner to your
left and closest to the front of the chassis as you face
the front of the computer (see Figure 6-1).

7.

Install the microprocessor chip in the socket (see
Figure 6-12).

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, align the pins on the chip with the holes in
the socket. Set the chip lightly in the socket and
make sure all pins are headed into the correct holes.
Because your system uses a ZIF microprocessor
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, pivot the
microprocessor-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.
Bending the pins can permanently damage the
microprocessor.

microprocessor chip

microprocessor
socket

release lever

CAUTION: Positioning the microprocessor
chip incorrectly in the socket 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 go
into the corresponding holes on all sides of the
socket. Be careful not to bend the pins.

pin-1 corner (gold finger
and square pad)