HP Compaq dc7900 USDT Spezifikationen PDF herunterladen (Seite 264)

Cannot enable integrated graphics after installing a PCI Express graphics card.

Cause Solution

On systems with Intel integrated graphics, the integrated

graphics cannot be enabled after installing a PCI Express x16.

The integrated graphics can be enabled in Computer Setup if

a PCI or PCI Express x1 graphics card is installed, but it cannot

be enabled if there is a graphics card in the PCI Express x16

slot.

Blank screen and the power LED flashes Red five times, once every second, followed by a two second pause, and the

computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)

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 flashes Red six times, once every second, followed by a two second pause, and the

computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause

Solution

Pre-video graphics error. For systems with a graphics card:

1. Reseat the graphics card. Power on the system.

2. Replace the graphics card.

3. Replace the system board.

For systems with integrated graphics, replace the system

board.

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

the computer beeps seven times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause

Solution

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

Monitor does not function properly when used with energy saver features.

Cause Solution

Monitor without energy saver capabilities is being used with

energy saver features enabled.

Disable monitor energy saver feature.

Table D-6 Solving Display Problems (continued)

252 Appendix D Troubleshooting Without Diagnostics

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HP Compaq dc7900 USDT Spezifikationen Seite 264