Expanding and assigning parameters to the device   
6.5 Memory modules 
  SIMATIC IPC PX-39A 
72  Operating Instructions, 08/2022, A5E51699601-AA 
6.5  Memory modules 
6.5.1  Installing and removing a memory module 
The motherboard is equipped with one slot for an SO-DIMM DDR4 memory module. You can 
use it to expand the memory capacity of the device to a maximum of 32 GB. 
Usable memory modules 
•  DIMM DDR4 memory modules 
•  Memory transaction rate 3200 MT/sec "unbuffered" 
•  "without ECC" or "with ECC" 
Note 
Use only the memory modules recommended by Siemens AG. 
Requirement 
•  The device is open, see important information under "Opening the device (Page 61)". 
Procedure - Removal 
 
Push down the module clips 
towards the outside. 
 
The memory module tilts for-
ward.
 
: The left holder is lo-
cated under the cover (not im-
mediately visible from above) 
 
Remove the memory module 
from the slot.