HP Z840 Maintenance and Service Guide - Page 94

Solving hard drive problems, Diagnostics and troubleshooting

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Solving hard drive problems Problem Hard drive error Disk transaction problem Drive not found (identified) Non-system disk or NTLDR missing message Workstation will not start. Cause Solution Hard disk has bad sectors or has Locate and block the usage of bad sectors. If necessary, failed. reformat the hard disk. If the drive is detected by the BIOS, run DPS Self-test. The directory structure is bad, or 1. there is a problem with a file. 2. 3. Right-click Start, select Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, select Check Now. Improper cable connection On computers with discrete data and power cables, ensure that the data and power cables are securely connected to the hard drive. (See the Hard drive section of this guide for connection details.) Improperly seated hard drive On systems with blind-mate drive connections, check for connector damage on the drive and in the chassis. Reseat the hard drive and its carrier in the chassis to ensure a proper connection. (See the Hard drive section of this guide for connection details.) The system might not have automatically recognized a newly installed device. 1. Run Computer Setup (F10) Utility. 2. If the system does not recognize the new device, verify that the device is listed in Computer Setup (F10) Utility. If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem. 3. If this drive is newly installed, enter Setup and try adding a POST delay under Advanced > Power-On. Drive responds slowly immediately after power-up. Run Computer Setup (F10) utility and increase the POST Delay in Advanced > Power-On Options. System is trying to start from nonbootable media. Remove the optical disc or USB drive. System is trying to start from a Insert a bootable system optical disc or USB drive and restart damaged hard drive. the computer. System files missing or not properly installed. 1. Insert a bootable system optical disc or USB drive and restart. 2. Verify that the hard drive is partitioned and formatted. 3. Install the files for the appropriate operating system, if necessary. Hard drive boot disabled in Computer Setup. Run Computer Setup (F10) Utility and enable the hard drive entry in the Advanced > Boot Order list. Hard drive is damaged. Replace the hard drive. 84 Chapter 4 Diagnostics and troubleshooting

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Solving hard drive problems
Problem
Cause
Solution
Hard drive error
Hard disk has bad sectors or has
failed.
Locate and block the usage of bad sectors. If necessary,
reformat the hard disk.
If the drive is detected by the BIOS, run DPS Self-test.
Disk transaction problem
The directory structure is bad, or
there is a problem with a
file.
1.
Right-click
Start
, select
Explore
, and select a drive.
2.
Select
File > Properties > Tools
.
3.
Under Error-checking, select
Check Now
.
Drive not found
(identified)
Improper cable connection
On computers with discrete data and power cables, ensure
that the data and power cables are securely connected to the
hard drive. (See the
Hard drive
section of this guide for
connection details.)
Improperly seated hard drive
On systems with blind-mate drive connections, check for
connector damage on the drive and in the chassis.
Reseat the hard drive and its carrier in the chassis to ensure a
proper connection. (See the
Hard drive
section of this guide
for connection details.)
The system might not have
automatically recognized a
newly installed device.
1.
Run Computer Setup (F10) Utility.
2.
If the system does not recognize the new device, verify
that the device is listed in Computer Setup (F10) Utility.
If it is listed, the probable cause is a driver problem. If it
is not listed, the probable cause is a hardware problem.
3.
If this drive is newly installed, enter
Setup
and try
adding a POST delay under
Advanced > Power-On
.
Drive responds slowly
immediately after power-up.
Run Computer Setup (F10) utility and increase the POST Delay
in
Advanced > Power-On Options
.
Non-system disk or NTLDR missing
message
System is trying to start from
nonbootable media.
Remove the optical disc or USB drive.
System is trying to start from a
damaged hard drive.
Insert a bootable system optical disc or USB drive and restart
the computer.
System
files
missing or not
properly installed.
1.
Insert a bootable system optical disc or USB drive and
restart.
2.
Verify that the hard drive is partitioned and formatted.
3.
Install the
files
for the appropriate operating system,
if necessary.
Hard drive boot disabled in
Computer Setup.
Run Computer Setup (F10) Utility and enable the hard drive
entry in the
Advanced > Boot Order
list.
Workstation will not start.
Hard drive is damaged.
Replace the hard drive.
84
Chapter 4
Diagnostics and troubleshooting