Toshiba PORTEGE R400 Maintenance Manual page 274

4.21 Fan/Heat sink
3. Remove the following screws securing the CPU hold plate and North bridge hold
plate in the reverse order of the number marked on the plates.
• M2×4B
4. Remove the CPU heat sink and North bridge heat sink.
M2x4B BIND
PORTÉGÉ R400 Maintenance Manual (960-623)
BIND screw
M2x4B BIND
Figure 4-34 Removing the CPU heat sink
Figure 4-35 Removing the North bridge heat sink
4 Replacement Procedures
×3
M2x4B BIND
CPU hold plate
CPU heat sink
North bridge hold plate
[CONFIDENTIAL]
North bridge heat sink
4-55