HP EliteDesk 705 G3 Microtower PC Uživatelský manuál stáhnout pdf (Strana 83)

Blank screen (no video).

Cause Solution

To access Control Panel in Windows 7, click Start, and then

select Control Panel.

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. Refer to 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).

3. Replace the system board.

For systems with integrated graphics, replace the system board.

Blank screen and the power LED ashes Red seven times, once every second, followed by a two second pause, and the computer

beeps seven times. (Beeps stop after fth iteration but LEDs continue ashing.)

Cause Solution

System board failure (ROM detected failure prior to video). Replace the system board.

Solving display problems 75

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HP EliteDesk 705 G3 Microtower PC Uživatelský manuál Strana 83