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Checking the Basics: Dell PowerEdge 8450 Systems Installation and Troubleshooting
Guide
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Checking the Basics: Dell PowerEdge 8450 Systems
Installation and Troubleshooting Guide
Overview Backing Up Files Basic Checks Checking Connections and Switches
Look and Listen Recovering the BIOS The System Setup Program
Overview
If your Dell PowerEdge 8450 system is not working as expected, begin troubleshooting
using the procedures in this section. This section guides you through some initial checks
and procedures that can solve basic computer problems. It can also direct you to the
appropriate section for detailed troubleshooting information and procedures to solve more
complex problems.
 |
NOTE: When you see the question "Is the problem
resolved?" in a troubleshooting procedure, perform the operation that caused the
problem. |
Backing Up Files
If the system is behaving erratically, back up the files on the hard-disk drives
immediately. See the documentation that came with the operating system for instructions on
how to back up the files.
Basic Checks
The following procedure leads you through the checks necessary to solve some basic
computer problems:
- Was an alert message issued by the Dell OpenManage Hardware
Instrumentation Package (HIP) server management application program?
Yes. Go to Alert Log
Messages From the Dell OpenManage HIP Application Program in Messages and Codes.
No. Go to step 2.
- Is the computer wet or damaged?
Yes. Go to Checking Inside the Computer.
No. Go to step 3.
- Perform the steps in Checking
Connections and Switches.
Is the problem resolved?
Yes. The power to the computer system was faulty, or the connections to the
computer system were loose. You have fixed the problem.
No. Go to step 4. Follow the procedures described in Look and Listen.
- Did the system complete the boot routine?
Yes. Go to step 5.
No. A serious malfunction may have occurred. Go to Getting Help.
- Did you receive a system message or beep code?
Yes. Go to System Messages.
No. Go to step 6.
- Verify the settings in the system
setup program.
Is the problem resolved?
Yes. The system configuration information was incorrect. You have fixed the
problem.
No. Go to step 7.
- Run the Dell Diagnostics.
Checking
Connections and Switches
Improperly set switches and controls and loose or improperly connected cables are the
most likely source of problems for the computer, monitor, or other peripherals (such as a
printer, keyboard, mouse, or other external equipment). A quick check of all the switches,
controls, and cable connections can easily solve these problems. Figure 1 shows the back-panel connections on the computer. Figure 2 shows the front-panel controls and indicators on
the computer.
Figure 1. Back-Panel Features
1 |
PCI hot-plug expansion slot
indicators (10) |
2 |
Inter-chassis management bus
(ICMB) connectors (2) (when supported) |
3 |
External SCSI connector |
4 |
Keyboard connector |
5 |
Mouse connector |
6 |
Serial port B |
7 |
Serial port A |
8 |
Parallel port connector |
9 |
Video connector |
10 |
USB connectors 0 (top) and 1 |
11 |
Redundant power supplies (3) |
12 |
AC power receptacle |
Figure 2. Front-Panel Features
1 |
Power button |
2 |
Diskette drive |
3 |
IDE CD-ROM drive |
4 |
System status
indicators (4) |
To check all the connections and switches, perform the following
steps:
- Turn off the system, including any attached peripherals (such as the
monitor, keyboard, printer, external drives, scanners, and plotters). Disconnect all the
AC power cables from their electrical outlets.
- If the computer is connected to a power strip (or power distribution
unit), turn the power strip off and then on again. Is the power strip receiving
power?
Yes. Go to step 5.
No. Go to step 3.
- Plug the power strip into another electrical outlet. Is the power strip receiving power?
Yes. The original electrical outlet probably does not function. Use a
different electrical outlet.
No. Go to step 4.
- Plug a system that you know works into the electrical outlet. Does the system receive
power?
Yes. The power strip is probably not functioning properly. Use another power
strip.
No. Go to step 5.
- Reconnect the system to the electrical outlet or power strip.
Make sure that all connections fit tightly together.
- Turn on the system. Is the problem resolved?
Yes. The connections were loose. You have fixed the problem.
No. Go to step 7.
- Is the monitor operating properly?
Yes. Go to step 8.
No. Go to "Troubleshooting
the Monitor" in Checking the Equipment.
Is the keyboard operating properly?
Yes. Go to step 9.
No. Go to "Troubleshooting
the Keyboard" in Checking the Equipment.
Are the mouse and printer operating properly?
Yes. Continue with "Look and Listen" found next in this section.
No. Go to "Troubleshooting
I/O Ports" in Checking the Equipment.
Look and Listen
Looking at and listening to the system is important in determining the source of a
problem. Look and listen for the indications described in Table 1.
Table 1. Boot Routine Indications
| Look/Listen for: |
Action |
| An error message |
See Messages
and Codes. |
| Alert messages from the Dell
OpenManage HIP software |
The server
management software has detected a problem inside the computer. See Alert Log
Messages From the Dell OpenManage HIP Application Program. |
| The monitor's power indicator |
Most monitors have a power
indicator (usually on the front bezel). If the monitor's power indicator does not come on,
see Troubleshooting the Monitor. |
| The keyboard indicators |
Most keyboards have one or
more indicators (usually in the upper-right corner). Press the <Num Lock> key, the
<Caps Lock> key, or the <Scroll Lock> key to toggle their respective keyboard
indicators on and off. If the indicators do not light up, see Troubleshooting the Keyboard. |
| The diskette-drive access
indicator |
The diskette-drive access
indicator should quickly flash on and off when you access data on the diskette drive. If
the diskette-drive access indicator does not light up, see Troubleshooting the Diskette
Drive Subsystem. |
| The hard-disk drive activity
indicators |
The
hard-disk drive activity indicators should quickly flash on and off when you access data
on the hard-disk drives. On a system running the Microsoft® Windows NT® operating
system, you can test the drive by opening Windows Explorer and clicking the icon for drive
C. If the hard-disk drive access indicator does not come on, see Troubleshooting SCSI Hard-Disk
Drives.
|
| A series of beeps |
|
| An unfamiliar constant
scraping or grinding sound when you access a drive |
Make sure the sound is not
caused by the application program you are running. The sound could be caused by a hardware
malfunction. See Getting Help for instructions on obtaining
technical assistance from Dell. |
| NOTE: For the full name of an abbreviation or acronym used in this table, see
the Abbreviations and Acronyms list. |
Recovering the BIOS
If the system basic input/output system (BIOS) is corrupted, you can reboot the system
by using a separate recovery BIOS. To recover the BIOS, perform the following steps:
- Shut down the system.
- Change the BIOS Recovery switch to the recovery position. See Jumpers, Switches, and Connectors for the location of this switch.
- Place the BIOS Recovery diskette in the diskette drive and restart
the system.
The recovery BIOS will boot the system from the diskette and reflash the system BIOS. This
procedure will take up to five minutes. When the procedure is completed, the system will
beep twice.
- Shut down the system and remove the BIOS recovery diskette.
- Return the BIOS Recovery switch to the normal position.
The System Setup Program
You can easily correct certain system problems by verifying the correct settings in the
system setup program. When you boot the system, the system checks the system configuration
information and compares it with the current hardware configuration. If the system
hardware configuration does not match the information recorded by the system setup
program, an error message may appear on the screen.
This problem can happen if you changed the system's hardware configuration and forgot
to run the system setup program. To correct this problem, enter the system setup program,
correct the corresponding system setup setting, and reboot the system. See "Using the
System Setup Program" in the User's Guide for detailed instructions on using
the system setup program.
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