HP Compaq dc7100 DT Getting Started Guide

36 www.hp.com Getting Started
Getting Started
Red Power LED
flashes four times,
once every
second, followed
by a two second
pause.
4Power failure
(power supply is
overloaded).
1. Open the hood and
ensure the 4-wire
power supply cable
is seated into the
connector on the
system board.
2. Check if a device is
causing the
problem by
removing ALL
attached devices
(such as hard,
diskette, or optical
drives, and
expansion cards).
Power on the
system. If the system
enters the POST,
then power off and
replace one device
at a time and
repeat this
procedure until
failure occurs.
Replace the device
that is causing the
failure. Continue
adding devices one
at a time to ensure
all devices are
functioning
properly.
3. Replace the power
supply.
4. Replace the system
board.
Diagnostic Front Panel LEDs and Audible Codes
Activity Beeps Possible Cause
Recommended
Action

HP Compaq dc7100 DT Specifications

General

Processor Speed	Up to 3.8 GHz
Chipset	Intel 915G
Memory	Up to 4 GB DDR2 SDRAM
Operating System	Windows XP Professional
Form Factor	Desktop
Processor	Intel Pentium 4
Storage	40 GB to 160 GB SATA
Graphics	ATI Radeon X300 SE
Optical Drive	DVD-ROM
Audio	Integrated audio
Network	Integrated Gigabit Ethernet
Expansion Slots	1 PCI Express x16
Ports	1 Parallel, 1 Serial, 2 PS/2, 1 VGA