Toshiba PORTEGE M400 Maintenance Manual page 384

4 Replacement Procedures
3. Remove the heat sink on the CPU.
CAUTION: When removing the heat sink, be careful not to damage the CPU under the
fin.
4. Unlock the CPU by rotating counterclockwise the cam on the CPU socket by 90
degrees with a flat-blade driver.
4. Remove the CPU.
CAUTION: When removing the CPU, lift it up right above. Otherwise, pins of CPU may
be damaged.
4-52 [CONFIDENTIAL]
Figure 4-33 Replacing the CPU
PORTEGE M400 Maintenance Manual (960-541)
4.18 Heat sink/CPU