Compaq D51s Troubleshooting Guide - Page 28

Storage > Boot Order, Problem, Cause, Solution, Run Computer Setup and enable

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Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem Nonsystem disk/NTLDR missing message. (continued) Second Ultra ATA hard drive does not perform optimally. Computer will not start. Computer seems to be locked up. Cause Hard drive boot has been disabled in Computer Setup. You are using the wrong cable for the drive type. Both slow and fast UATA devices are on the same data cable. Hard drive is damaged. Program in use has stopped responding to commands. Solution Run Computer Setup and enable the hard drive entry in the Storage > Boot Order list. Reinstall the second Ultra ATA hard drive using an 80-conductor cable. The 80-conductor cable is standard on select models. Change slow UATA devices to a separate data cable connected to the secondary IDE controller on the system board. Observe the beeps and LED lights on the keyboard. See Appendix A, "POST Error Messages" to determine possible causes. See your Worldwide Limited Warranty for details. Attempt the normal Windows "Turn off Computer" procedure. If this fails, press the power button for four or more seconds to turn off the power. To restart your computer, press the power button again. 2-14 Troubleshooting Guide

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2–14
Troubleshooting Guide
Troubleshooting Without Diagnostics
Nonsystem disk/NTLDR
missing message.
(continued)
Hard drive boot has
been disabled in
Computer Setup.
Run Computer Setup and enable
the hard drive entry in the
Storage > Boot Order
list.
Second Ultra ATA hard
drive does not perform
optimally.
You are using the
wrong cable for the
drive type.
Reinstall the second Ultra ATA hard
drive using an 80-conductor cable.
The 80-conductor cable is standard
on select models.
Both slow and fast
UATA devices are on
the same data cable.
Change slow UATA devices to a
separate data cable connected to
the secondary IDE controller on the
system board.
Computer will not start.
Hard drive is damaged.
Observe the beeps and LED lights
on the keyboard. See Appendix A,
“POST Error Messages” to
determine possible causes.
See your Worldwide Limited
Warranty for details.
Computer seems to be
locked up.
Program in use has
stopped responding to
commands.
Attempt the normal Windows “Turn
off Computer” procedure. If this
fails, press the power button for
four or more seconds to turn off the
power. To restart your computer,
press the power button again.
Solving Hard Drive Problems
(Continued)
Problem
Cause
Solution