IBM 8425, 8171, 8424, 8428, 8173 manual Removing and replacing the microprocessor

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Removing and replacing the microprocessor

Attention

Do not open your computer or attempt any repair before reading the “Safety notices” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.

Important

Shut down and turn off your computer for at least one hour before removing the microprocessor to allow the thermal interface between the microprocessor and the heat sink time to cool down.

When you receive a new microprocessor, you will also receive a new heat sink and vacuum pen. You must use the new heat sink with the new microprocessor. If you use the old heat sink with the new microprocessor, your computer might overheat causing intermittent problems.

Important

Avoid handling the microprocessor with your hands, and avoid contact with the microprocessor contacts. Use the vacuum pen provided to remove and install the microprocessor. If you must touch the microprocessor, touch only the sides.

To remove the microprocessor, do the following:

1.Turn off the computer and allow it to cool for one hour.

2.Open the cover. Go to “Opening the cover” on page 1.

3.Pivot the drive bay assembly upward to gain access to the microprocessor.

10Hardware Removal and Replacement Guide

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Contents ThinkCentre Page ThinkCentre Page Contents Iv Hardware Removal and Replacement Guide Safety information Additional information resources Tools requiredHandling static-sensitive devices Vi Hardware Removal and Replacement Guide Replacing customer replaceable units CRUs Opening the coverLocating components Removing and replacing the power supply Identifying parts on the system boardHardware Removal and Replacement Guide Replacing customer replaceable units CRUs Hardware Removal and Replacement Guide Removing and replacing the system board assembly Hardware Removal and Replacement Guide Replacing customer replaceable units CRUs Removing and replacing the microprocessor Replacing customer replaceable units CRUs Hardware Removal and Replacement Guide Replacing customer replaceable units CRUs Hardware Removal and Replacement Guide Removing and replacing memory modules Hardware Removal and Replacement Guide Replacing customer replaceable units CRUs Removing and replacing a hard disk drive Completing the installation Hardware Removal and Replacement Guide Updating flashing Bios from a diskette Hardware Removal and Replacement Guide Page Part Number 19R0821