Toshiba Satellite A40 Maintenance Manual page 239

4.6 Heat sink/CPU 4 Replacement Procedures
Installing the Heat sink/CPU
To install the heat sink/CPU, follow the steps below and refer to figures 4-6 to 4-9.
CAUTION: Place the CPU in such direction as shown below. (Pay attention to the
position of the triangle mark on the CPU.)
Make sure the lock lever is lifted up, before installing the CPU.
1. Seat the CPU in the CPU socket and lock the lock lever by pressing it down. Make sure
the position is exact to avoid damaging pins of the CPU.
CPU
CPU socket
Mark
Lock lever
Figure 4-8 Installing the CPU
Satellite A40 Maintenance Manual (960-458) 4-21