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Chapter 2 Installation and Configuration
and pxiesys.ini). Device drivers and other utility software read the pxiesys.ini and
pxisys.ini files to obtain system information. For detailed information about initialization
files, refer to the PXI Express specification at www.pxisa.org.
Upgrading RAM
You can change the amount of installed RAM on the PXIe-8840 by upgrading the SO-DIMM.
National Instruments offers the following SO-DIMMs for use with the PXIe-8840 controller.
• 1600 MHz DDR3L PC3-12800 4 GB, 512 MB × 64, 1.18 in. max
(NI part number 782341-4096)
• 1600 MHz DDR3L PC3-12800 8 GB, 1024 MB × 64, 1.18 in. max
(NI part number 783001-8192)
Note National Instruments has tested and verified that the DDR3L SO-DIMMs we
sell work with the PXIe-8840. We recommend you purchase your DDR3L
SO-DIMM modules from National Instruments. Other off-the-shelf DDR3L
SO-DIMM modules are not guaranteed to work properly.
Figure 2-5. Installing a DDR3L SO-DIMM in an PXIe-8840 Controller
1 DDR3L SO-DIMM Socket 2 DDR3L SO-DIMM Module
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