HP FL939UT FL939UT#ABA manual Troubleshooting scenarios and solutions, Solving minor problems

Troubleshooting scenarios and solutions

This section presents an extensive overview of various troubleshooting scenarios and possible solutions for a Windows-based workstation.

NOTE: For Linux troubleshooting information, refer to the HP Workstations for Linux User Manual at http://www.hp.com/support/linux_user_manual.

Solving minor problems

Table 6-1Minor problems

Problem Cause Possible Solution

Workstation appears frozen and does not shut down when the power button is pressed.

Software control of the power switch is not functional.

1.Press and hold the power button for at least four seconds until the workstation shuts down.

2.Disconnect the electrical plug from the outlet.

3.Restart the workstation.

Workstation seems to be	Program in use has stopped
frozen.	responding to commands.

1.If possible, use the Windows Task Manager to isolate and terminate the offending process.

2.Attempt the normal Windows shutdown procedure.

3.Restart the workstation using the power button.

Workstation date and time	Real-time clock (RTC) battery	1.	Reset the date and time in the Control Panel.
display is incorrect.	might need replacement.	2.	Replace the RTC battery.
Workstation appears to pause	Network driver is loaded and no	Establish a network connection, or use the Computer Setup
periodically.	network connection is	(F10) Utility or the Microsoft Windows Device Manager to
	established.	disable the network controller.
Cursor does not move using	The Num Lock key might be on.	Press Num Lock. The Num Lock key can be disabled or
the arrow keys on the keypad.		enabled in the Computer Setup (F10) Utility.
Poor performance is	Processor is hot.	1.	Verify that airflow to the workstation is not blocked.
experienced.		2.	Verify that chassis fans are connected and working
			properly. Some fans operate only when needed.
		3.	Verify that the processor heatsink is installed properly.
	Hard drive is full.	Transfer data from the hard drive to create more space on
		the hard drive.
Workstation powered off	Processor thermal protection is	1.	Verify that the workstation air vents are not blocked.
automatically and the Power	activated.	2.	Open the access panel and press the workstation
LED flashes red 2 times (once
every second), followed by a 2-	A fan might be blocked or not		power button.
second pause, and then two	turning.	3.	Verify that the system fan is running.
simultaneous beeps sounded.	OR
		4.	Verify that the processor heatsink fan spins. If the fan
	The processor heatsink is not		is not spinning, verify that the heatsink fan cable is
	properly attached to		plugged into the system board connector and that the
	the processor.		heatsink is properly seated.
		5.	Replace the processor heatsink.
System does not power on,	System cannot power on.	Press and hold the power button for less than four seconds.
and the LEDs on the front of		If the hard drive LED turns green, then perform the following
the workstation are not		steps.
flashing.		1.	To find a faulty device, remove all devices one at a time:

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