HP Compaq NX4820 Maintenance And Service Manual page 60

Troubleshooting
Flowchart 2.10—No OS Loading, Hard Drive,
Part 1
OS not
loading from
hard drive.
Y
Nonsystem
disk message?
N
Reseat
external
hard drive.
Y
OS loading?
N
N
Boot
from
CD?
Y
Check the setup
utility for correct
booting order.
N
Boot
from
hard drive?
Y
Done
2–18
Go to
"Flowchart
2.11—No OS Load-
ing, Hard Drive,
Part 2."
Done
Boot
from
diskette?
Y
Change boot
priority through
the setup utility
and reboot.
Boot
from
hard drive?
Y
N
"Flowchart
2.13—No OS
Loading, Dis-
kette Drive."
N
2.17—Nonfunction-
Maintenance and Service Guide
Go to
Go to
"Flowchart
ing Device."