Compaq 177620-006, Compaq Evo Desktop manual Solving Display Problems

Troubleshooting Without Diagnostics

Solving Display Problems

If you encounter display problems, see the documentation that came with your monitor and to the common causes and solutions listed in the following table.

Solving Display Problems

Problem Cause Solution

Blank screen.	Monitor is not turned
	on and the monitor light
	is not on.

Turn on the monitor and check that the monitor light is on.

The cable connections	Check the cable connection from
are not correct.	the monitor to the computer and to
	the electrical outlet.
The energy saver	Press any key or click the mouse
feature has been	button and, if set, type your
enabled.	password.
The RGB (Red, Green,	Set the monitor’s RGB input switch
Blue) input switch	to 75 ohms and, if there is a sync
on the monitor is	switch, set it to external.
incorrectly set.

System ROM is bad; system is running in Failsafe Boot Block mode (indicated by one long beep and three short beeps).

Reflash the ROM using a ROMPaq diskette. See the “Failsafe Boot Block ROM” section of the Desktop Management Guide for more information.

You are using a fixed-sync monitor and it won’t sync at the resolution chosen.

Be sure that the monitor can accept the same sweep rate as the resolution chosen.

Computer is in Stand	Press the power button to resume
By mode.	from Stand By mode.

Troubleshooting Guide 2–15