HP ZE4900 - Manual (Page 45)

Troubleshooting
Maintenance and Service Guide 2–7
Flowchart 2.1—Initial Troubleshooting
Connecting
to network
or modem?
Begin
troubleshooting.
Is there
power?
Is the OS
loading?
Is there video?
(no boot)
Is there
sound?
Beeps,
LEDs, or error
messages?
Keyboard/
pointing
device
working?
Go to
“Flowchart
2.15—Nonfunction
ing Device.”
Go to
“Flowchart
2.2—No Power,
Part 1.”
Go to
“Flowchart
2.6—No Video,
Part 1.”
All drives
working?
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
End
N
N
N
Go to
“Flowchart
2.8—No Operating
System (OS)
Loading.”
Go to
“Flowchart
2.14—No Audio.”
Go to
“Flowchart
2.16—Nonfunction
ing Keyboard” or
“Flowchart
2.17—Nonfunction
ing Pointing
Device.”
Check
LED board,
speaker
connections.
Go to
“Flowchart
2.18—No
Network/Modem
Connection.”