So-Dimm Pba; Crum Pba - Samsung ProXpress M4030 Series Service Manual

2. Product Specifications and Description

2.9.3. SO-DIMM PBA

The SO-DIMM PBA is the system memory module of the main board. It is used for the operating system, some system
application programs, and it stores some print data from the USB and Network port (scanned images, copy data, fax data and
printable video data, etc.). The SO-DIMM PBA includes the following features:
•
256 MB standard (2GB optional)
NOTE
Only this memory can be installed to the main board. A wise use memory can not be installed.

2.9.4. CRUM PBA

The CRUM PBA includes CRU memory for toner cartridge life cycle counting.
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