Expansions and configuration 
  10.2 Memory expansion 
SIMATIC Box PC 627 
Operating Instructions, Release 05/2006, A5E00362052-03 
10-3 
10.2  10.2 Memory expansion 
10.2.1  Removing/Installing Memory Module 
Memory expansion options  
The motherboard is equipped with 2 slots for memory modules. For 184-pin DDR2 RAM 
chips, unbuffered, no ECC. This allows you to expand the memory capacity of your PC to a 
maximum of 2 GB. One or two modules can be installed. 
 
Combination  Slot X1  Slot X2  Maximum 
expansion 
1  256/512 MB /1 GB    1 GB 
2  256/512 MB /1 GB  256/512 MB /1 GB  2 GB 
 
 
 
Note 
The modules can be installed in any slot. 
Preparation 
Disconnect the device from mains and unplug all cables. 
 
 
Caution 
The electronic components on the PCBS are highly sensitive to electrostatic discharge. It is 
therefore vital to take precautionary measures when handling these components. Refer to 
the directives for handling electrostatic sensitive components.