Technical information
V1.0 Vig644M Motherboard Manual 
25 
Upgrading the CPU  
CAUTION! 
Before installing or removing a processor, make sure the AC power has been removed 
by unplugging the power cord from the computer; the standby power LED should not be 
lit. Failure to do so could damage the processor and the board. 
To install a processor, follow these instructions: 
1.  Unlatch  the  processor  socket  lever  by pushing  it down  and  away  from  the  socket. 
(Figure 7, A, B) 
Figure 16: Unlatch the socket lever 
2.  Rotate  the  socket  lever  to  lift  the  load  plate  away  from  the  socket  (Figure  22,  A). 
Make sure that the load plate is in the fully open position (Figure 22, B) while being 
careful not to damage adjacent components. Do not touch the socket contacts. 
Figure 17: Lift the load plate 










