Acer AcerPower SV - Manual (Page 24)

Upgrading your computer 18
Install and upgrade CPU
To install or upgrade the CPU, complete the following steps:
1 Unlock the socket lever.
2 Install the CPU chip into socket.
3 Return the lever to locked position.
4 Attach the fan/heat sink on top of the CPU.
5 Attach the fan/heat sink connectors to the connectors with marked
with "CPU FAN".
Warning! The CPU and heat sink may be hot if the system has
been running. Also, there might be sharp pins and edges on some
boards and/or chassis parts.