HP Compaq dc5700 MT Reference Manual page 180

Troubleshooting Without Diagnostics
Solving Display Problems (Continued)
Problem
Blank screen (no video).
(continued)
Cannot enable integrated
graphics after installing a
PCI Express graphics card.
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
continue for five iterations
after which the LED flashes
will continue until the
problem is resolved.
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
continue for five iterations
after which the LED flashes
will continue until the
problem is resolved.
D–16
Cause
Monitor settings in the
computer are not
compatible with the
monitor.
The SDVO connector on
the system board has
the physical
appearance of a PCI
Express x16 connector;
however, the platform
does NOT support the
use of conventional PCI
Express cards or
reversed-layout ADD2
cards.
Pre-video memory error.
Pre-video graphics
error.
437804-001
Solution
1. Restart the computer and press
F8 during startup when you see
"Press F8" in the bottom right
corner of the screen.
2. Using the keyboard arrow keys,
select Enable VGA Mode
and press Enter.
3. In Windows Control Panel,
double-click the Display icon
and select the Settings tab.
4. Use the sliding control to reset
the resolution.
The platform only supports the use of
normal (or non-reversed) layout
ADD2 (Advanced Digital Display 2)
adapter cards inserted into the
SVDO (Serial Digital Video Output)
connector on the platform's system
board. ADD2 cards are used to give
multi-monitor capabilities to the
integrated graphics controller.
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.
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.
Service Reference Guide, dc5700