HP Z800 Sp632up SP632UPABA manual Support.html, Select StartAll Programs AccessoriesSystem

Table 6-5Display problems (continued)

Problem	Cause	Solution
Blurry video or requested	If the graphics controller was	Install the video drivers included in the upgrade kit, or
resolution cannot be set.	upgraded, the correct video	download and install the latest drivers for your graphics
	drivers might not be loaded.	card from http://welcome.hp.com/country/us/en/
		support.html.
	Monitor cannot display	Change the requested resolution.
	requested resolution.
The picture is broken up, rolls,	The monitor connections might	1. Be sure the monitor cable is securely connected to the
jitters, or flashes.	be faulty, or the monitor might		workstation.
	be incorrectly adjusted.	2.	In a multiple CRT monitor system, ensure that the
			monitors' electromagnetic fields are not interfering
			with each other . Move them apart if necessary.
		3.	Move fluorescent lights or fans that are too close to
			the CRT monitor.
	Monitor must be degaussed.	Degauss the monitor.
Vibrating or rattling noise coming	Monitor degaussing coil has	None. It is normal for the degaussing coil to be activated
from inside a CRT monitor when	been activated.	when the monitor is powered on.
powered on.
Clicking noise coming from inside a	Electronic relays have been	None. It is normal for some monitors to make a clicking
CRT monitor.	activated inside the monitor.	noise when turned on and off, when going in and out of
		Standby mode, and when changing resolutions.
High pitched noise coming from	Brightness and contrast	Lower brightness and contrast settings.
inside a flat-panel monitor.	settings are too high.
Fuzzy focus; streaking, ghosting,	Flat-panel monitor’s internal	1. Select the monitor’s Auto-Adjustmentoption in the
or shadowing effects; horizontal	digital conversion circuits		monitor’s onscreen display menu.
scrolling lines; faint vertical bars; or	might be unable to correctly	2. Manually synchronize the Clock and Clock Phase
unable to center the picture on the	interpret the output
screen (flat-panel monitors using	synchronization of the		onscreen display functions.
an analog VGA input connection	graphics card.	3.	Download SoftPaq SP22333 to assist with the
only.)
			synchronization).
Some typed symbols do not appear	The font you are using does	Use the Character Map to locate and select the appropriate
correctly.	not support that symbol.	symbol.

Select Start>All Programs> Accessories>System

Tools>Character Map. You can copy the symbol from the

Character Map into a document.

180 Chapter 6 Diagnostics and troubleshooting ENWW