Dell OptiPlex Gn Reference and Installation Guide (.pdf) - Page 74

Pin-1 Identification, Installing the Microprocessor, which could

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Identify the pin-1 corner of the microprocessor by turning the chip over and locating the tiny gold finger 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. pin-1 corner (gold finger and square pad) When the chip is fully seated in the socket, pivot the microprocessor-socket release lever back toward the socket until it snaps into place, securing the chip. Figure 6-11. Pin-1 Identification The pin-1 corner of the socket is the bottom-left corner of the socket (see Figure 6-1). 7. Install the microprocessor chip in the socket (see Figure 6-12). CAUTION: Positioning the microprocessor chip incorrectly in the socket can permanently damage the chip and the computer when you turn on the system. If the release lever on the microprocessor socket is not all the way out, 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 seat itself in the socket with minimal pressure. 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 corners of chip and socket aligned Figure 6-12. Installing the Microprocessor Chip 8. Unpack the heat sink included in your upgrade kit. CAUTION: Ground yourself by touching an unpainted metal surface on the back of the computer. Peel the release liner from the adhesive tape that is attached to the bottom of the heat sink. 9. Place the heat sink on top of the microprocessor chip (see Figure 6-13). 6-8 Dell OptiPlex Gn and Gn+ Low-Profile Systems Reference and Installation Guide

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6-8
Dell OptiPlex Gn and Gn+ Low-Profile Systems Reference and Installation Guide
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 Identification
The pin-1 corner of the socket is the bottom-left cor-
ner of the socket (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 out, 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 seat itself in the
socket with minimal pressure.
When the chip is fully seated in the socket, pivot the
microprocessor-socket release lever back toward the
socket until it snaps into place, securing the chip.
Figure 6-12.
Installing the Microprocessor
Chip
8.
Unpack the heat sink included in your upgrade
kit.
Peel the release liner from the adhesive tape that is
attached to the bottom of the heat sink.
9.
Place the heat sink on top of the microprocessor
chip (see Figure 6-13).
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)
CAUTION: Ground yourself by touching an
unpainted metal surface on the back of the
computer.
pin-1 corners of
chip and socket
aligned