Power On Your Computer Or Pxi Chassis - National Instruments 5401 Getting Started Manual

4. Secure the device with a screw.
Caution
slot both for mechanical stability and for a solid ground connection,
which reduces electrical noise. Improperly secured devices may
affect the accuracy of device specifications.
Some computer manufacturers use a securing lever made of plastic
to secure PCI devices; such a lever is unacceptable and must be
removed. Use the screw provided in the kit to secure the device.
Otherwise, you must use a different computer chassis.
5. Verify that the computer exhaust fans are operable and free of dust
and other contaminants restricting airflow to prevent your device
from overheating. Refer to the
Devices section for more information.
6. Replace the PC cover.
7. Plug in the PC.

6. Power On Your Computer or PXI Chassis

Windows recognizes any newly installed device the first time you restart the
computer after hardware is installed. On some Windows systems, the Found
New Hardware wizard opens with a dialog box for every NI device installed.
Install the software automatically (Recommended) is selected by default.
Click Next or Yes to install the software for each device.
♦
PXI or PXI Express devices controlled using MXI—Power the PXI
chassis before you power on the PC.
♦
NI-DAQmx PCI devices—Verify that spread-spectrum clocking is
enabled in the PC BIOS. Refer to the PC user documentation for
information about how to verify this setting if it is available.
Caution
spread the timing clock signal over a small frequency range.
Disabling spread-spectrum clocking may affect the accuracy
of the signal generator specifications.
© National Instruments Corporation
It is important to completely screw the device into the PCI
Spread-spectrum clocking varies the clock signal to
Cooling Considerations for PXI and PCI
11 NI SIgnal Generators Getting Started Guide