HP 280 G4 - Page 63

Blank screen (no video).
Cause Solution
The cable connections are not correct. Check the cable connection from the monitor to the computer and
to the electrical outlet.
You may have a screen blanking utility installed or energy saver
features are enabled.
Press any key or click the mouse button and type your password
(if set).
You are using a xed-sync monitor and it will not sync at the
resolution chosen.
Be sure that the monitor can accept the same horizontal scan rate
as the resolution chosen.
Computer is in Sleep state. Press the power button to resume from Sleep state.
IMPORTANT: When attempting to resume from Sleep state, do
not hold down the power button for more than 4 s. Otherwise, the
computer will shut down and you will lose any unsaved data.
Monitor cable is plugged into the wrong connector. Systems may have a monitor connection on both the
motherboard or an add-in card. Try moving the monitor
connection to a dierent connector on the back of the computer
Monitor settings in the computer are not compatible with the
monitor.
1. In Control Panel, select Category from the View by list, then
under Appearance and Personalization, select Adjust
screen resolution.
To access Control Panel in Windows 10, type control
panel in the taskbar search box, and then select Control
Panel from the list of applications.
2. Expand the Resolution box, and then use the sliding control
to reset the resolution.
Monitor is congured to use an input that is not active. Use the monitor's on-screen menu controls to select the input
that is being driven by the system. See the monitor's user
documentation for more information on the on-screen controls
and settings.
Blank screen and the power LED ashes red ve times, once every second, followed by a two second pause, and the computer
beeps ve times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
Pre-video memory error. 1. Reseat DIMMs. Power on the system.
2. Replace DIMMs one at a time to isolate the faulty module.
3. Replace third-party memory with HP memory.
4. Replace the system board.
Blank screen and the power LED ashes red six times, once every second, followed by a two second pause, and the computer
beeps six times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
Pre-video graphics error. For systems with a graphics card:
1. Reseat the graphics card (if applicable). Power on the
system.
2. Replace the graphics card (if applicable).
Solving display problems 55