HP COMPAQ DC5750 User Manual

C–10 437963-001 Service Reference Guide, dc5750
POST Error Messages
Red Power LED
flashes six times,
once every
second, followed
by a two second
pause. Beeps stop
after fifth iteration
but LEDs continue
until problem is
solved.
6Pre-video
graphics error.
For systems with a graphics card:
1. R e s e a t t h e g r a p h i c s c a r d.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics,
replace the system board.
Red Power LED
flashes seven
times, once every
second, followed
by a two second
pause. Beeps stop
after fifth iteration
but LEDs continue
until problem is
solved.
7 System board
failure (ROM
detected failure
prior to video).
Replace the system board.
Red Power LED
flashes eight times,
once every
second, followed
by a two second
pause. Beeps stop
after fifth iteration
but LEDs continue
until problem is
solved.
8Invalid ROM
based on bad
checksum.
1. Reflash the ROM with the latest BIOS
image. See the “Boot Block
Emergency Recovery Mode” section of
the Desktop Management Guide on
the Documentation and Diagnostics
CD.
2. Replace the system board.
POST Diagnostic Front Panel LEDs and Audible Codes (Continued)
Activity Beeps Possible Cause Recommended Action

HP COMPAQ DC5750 Specifications

General

Processor Speed	Up to 2.8 GHz
Chipset	ATI Radeon Xpress 1150
Memory	Up to 4 GB DDR2 SDRAM
Audio	Integrated High Definition Audio
Network	Integrated Broadcom NetXtreme Gigabit Ethernet
Processor	AMD Athlon 64 X2 / AMD Sempron
Storage	SATA Hard Drive
Optical Drive	DVD-ROM, DVD+/-RW
Operating System	Windows XP Professional
Form Factor	Small Form Factor or Microtower
USB Ports	8 USB 2.0 (2 front, 4 rear, 2 internal)