Chapter 2 Installation and Configuration
NI PXI-8104 User Manual 2-14 ni.com
through the Identify As submenu. Further expanding the PXI System
branch shows all devices in the system that can be recognized by
NI-VISA. When your controller and all your chassis are identified,
the required pxisys.ini file is complete.
The PXI specification allows many combinations of PXI chassis and
system modules. To assist system integrators, the manufacturers of
PXI chassis and system modules must document the capabilities of their
products. The minimum documentation requirements are contained in
.ini files, which consist of ASCII text. System integrators, configuration
utilities, and device drivers can use these .ini files.
The capability documentation for the chassis is contained in a
chassis.ini file provided by the chassis manufacturer. The information
in this file is combined with information about the system controller to
create a single system initialization file called pxisys.ini (PXI System
Initialization). The NI PXI-8104 uses MAX to generate the pxisys.ini
file from the chassis.ini fil e.
Device drivers and other utility software read the pxisys.ini file to
obtain system information. For detailed information about initialization
files, refer to the PXI specification at www.pxisa.org.
Upgrading RAM
You can change the amount of installed RAM on the NI PXI-8104 by
upgrading the SO-DIMM.
To upgrade the RAM, remove the NIPXI-8104 from the PXI chassis. To
optimize both memory capacity and system performance, use the same size
and speed memory module in each of the two module slots. The use of
different size modules in each slot is supported, but system performance
will be slower than using two matched modules. However, two mismatched
modules will result in better performance than using a single module.
National Instruments offers the following types of SO-DIMMs for use with
the NIP XI-8104 controller.
• PC2-5300 512 MB, 64MB × 64, CL 5, 1.18 in. max
(National Instruments part number 779302-512)
• PC2-5300 1 GB, 128MB × 64, CL 5, 1.18 in. max
(National Instruments part number 779302-1024)