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Things to Notice:
•
Which LEDs come on? The PWROK/FAULT LED should stay lit green. 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, and so on)? 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?
•
Refer to your chassis documentation for additional troubleshooting steps.
Things to Try:
•
Make sure the chassis is plugged in to a working power source.
•
Check any fuses or circuit breakers in the chassis or other power supply (possibly a UPS).
•
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.
•
Try a similar controller in the same chassis.
•
Clear the CMOS.
•
Recover the hard drive on the controller.
•
Make sure the RAM is properly seated.
What If I Can't See The Video?
This problem usually results from having the video card output set past the monitor limits. To
resolve the problem, start Windows in Safe Mode by rebooting the controller. As Windows
begins to restart, hold down <F8>. You now should be able to reset the video driver to lower
settings. Try setting the resolution to 800 × 600 and the refresh rate to 60 Hz. Once you restart,
you can raise these values again, using the test option in Windows. You can access these
settings by clicking Adjust screen resolution in the Appearance and Personalization
category of the Control Panel. You also can try a different monitor, preferably a newer and
larger one.
My system boots fine as long as a particular module is
not in my chassis. How do I boot the chassis with the
module installed?
The most common cause of this problem is a damaged module. Try the module in a different
chassis or with a different controller. Also, remove any external cables or terminal blocks
connected to the system. If the module does not work in these cases, it is likely damaged.
Contact the module manufacturer for further troubleshooting.
16 | ni.com | NI PXI-8840 Quad-Core Getting Started Guide
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