©
National Instruments Corporation
9
NI High-Speed Digitizers Getting Started Guide
Figure 4.
NI PCI-5911 Installation
Multiple NI 5911 devices in the same computer can raise operating
temperatures beyond specification and produce imprecise data.
NI strongly recommends leaving an empty PCI slot between multiple
NI 5911 devices or adding a fan.
4. Secure the device to the PCI chassis with a screw.
Caution
It is important to completely screw the device front panel
into the PCI slot, both for mechanical stability and to create a solid
ground connection. Improperly secured devices may affect the
accuracy of the device.
(SMC-Based Devices)
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 screw down
the digitizer. Otherwise, you must use a different computer chassis.
5. Replace the PC cover.
6. Plug in and power on the PC.
7.
(SMC-Based Devices)
Verify that spread-spectrum clocking is enabled in
the PC BIOS. For information about how to verify this setting, refer to
the PC user documentation.
Note
For SMC-based devices, spread-spectrum clocking varies the
clock signal to spread the timing clock signal over a small
frequency range. Disabling spread-spectrum clocking may affect
the accuracy of device specifications.
