
NI PXI-8104 Installation Guide 4 ni.com
How to Remove the Controller from the PXI Chassis
The NI PXI-8104 controllers are designed for easy handling. To remove
the unit from the PXI chassis:
1. Turn off power.
2. Remove the cables from the controller front panel.
3. Unscrew the bracket-retaining screws in the front panel.
4. Press the injector/ejector handle down.
5. Slide the unit out of the chassis.
What If the NI PXI-8104 Does Not Boot?
Several problems can cause a controller not to boot. Here are some things
to look for and possible solutions.
Things to Notice
• Which LEDs come on? The Power OK LED should stay lit. The
Drive LED should blink during boot as the disk is accessed.
• What appears on the display? Does it hang at some particular point
(BIOS, Operating System, etc.)? If nothing appears on the screen,
try a different monitor. Does your monitor work with a different PC?
If it hangs, note the last screen output that you saw for reference when
consulting National Instruments technical support.
• What has changed about the system? Did you recently move the
system? Was there electrical storm activity? Did you recently add
a new module, memory chip, or piece of software?
Things to Try
• Make sure the chassis is plugged into a working power source.
• Check any fuses or circuit breakers in the chassis or other power
supply (possibly an uninterruptible power supply).
• Make sure the controller module is firmly seated in the chassis.
• Remove all other modules from the chassis.
• Remove any nonessential cables or devices.
• Try the controller in a different chassis or a similar controller in this
same chassis.
• Clear the CMOS. (Refer to the System CMOS section of the
NI PXI-8104 User Manual.)
• Recover the hard drive on the controller. (Refer to the Hard Drive
Recovery section of the NI PXI-8104 User Manual.)