Dell 4100/180, 4100/200 manual Unpack the new microprocessor

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.

microprocessor chip

microprocessor socket

release lever

Figure 8-7. Removing the Microprocessor

5.Unpack the new microprocessor.

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.

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.

pin-1 corner

(gold finger and square pad)

Figure 8-8. Pin-1 Identification

7.Install the microprocessor chip in the socket (see Figure 8-9).

CAUTION: Positioning the microprocessor incorrectly 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 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.

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.

When the chip is fully seated in the socket, rotate the socket release lever back down until it snaps into place, securing the chip.

8-8 Dell PowerEdge 4100/180 and 4100/200 Systems Installation and Troubleshooting Guide