HP Compaq dc7100 DT Reference Manual page 2

3. Select Security, then select Setup Password or Power-On Password and follow the
instructions on the screen.
4. Before exiting, click File > Save Changes and Exit.
Security Functions (Continued)
To change a Power-On or Setup password:
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down >
Restart the Computer. Run Computer Setup (F10).
When the key icon appears, type your current password, a slash (/) or alternate de-
limiter character, your new password, another slash (/) or alternate delimiter character, and your
new password again as shown:
current password/new password/new password.
NOTE: Type the new password carefully since the actual characters do not appear
on the screen.
2. Press the enter key.
The new password will take effect the next time the computer is restarted.
To delete a password using Setup:
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down >
Restart the Computer. To delete the setup password, run Computer Setup (F10).
2. When the key icon appears, type your current password followed by a slash (/) or
alternate delimiter character as shown. Example: currentpassword/
3. Press the Enter key.
To delete or disable the Power On and Setup passwords:
1. Shut down (Power down) the system and disconnect the power cord from the outlet
or the system unit.
2. Remove the chassis cover.
3. On the system board, remove the jumper on pins 1 and 2 of header E49 and place
only on pin 2.
4. Replace the chassis cover and reconnect the power cord.
NOTE: Setup password may be used in place of Power-on password to boot system.
Security Features
Feature
Removable Media Prevents booting from removable media
Boot Control drives.
Serial, Parallel, Prevents data transfer through integrated
USB, or Infrared serial, parallel, USB, or infrared interface.
Interface Control
Power-On Prevents use of computer until password is
Password entered. Can apply to both initial startup
and restart.
Setup Password Prevents reconfiguration of computer until
password is entered.
Network Server Provides unique security features for
Mode computer used as server.
DriveLock Prevents unauthorized access to data on
drives supporting password protection.
Smart Software-controllable solenoid that, when
Cover Lock [2][3] activated, prevents unauthorized access to
chassis interior.
Smart Indicates computer cover or side panel has
Cover Sensor [3] been removed. Can be set to require
password for restart after cover or panel
removal.
Master Boot May prevent unintentional or malicious
Record (MBR) changes to MBR of the current bootable
Security disk and provides a means of recovering
"last known" parameters.
Drive Protection Diagnostic tool built into hard drives on
System (DPS select models designed to discover
problems that might result in unwarranted
drive replacement.
Memory Change Detects addition or removal of memory
Alerts modules. Notifies system administrator.
Ownership Tag Displays ownership information as defined
by system administrator during system
startup. (Protected by setup password).
Kensington Inhibits access to interior of computer
CableLock chassis. Can also be used to secure
Provision computer to a fixed object for prevent theft.
NOTES:
[1] For more information about Setup Utilities refer to the Computer Setup Guide.
[2] If for any reason the Setup utility is not accessible to unlock the Smart Cover Lock
then a FailSafe key is required to bypass the Smart Cover Lock and open the computer.
Refer to the Hardware Reference Guide on how to use the FailSafe key. To order a Fail-
Safe key contact HP.
[3] Available on some models.
Diagnostic Functions
Diagnostic functions are provided by the Setup Utility (in system ROM) and by Diagnostics
for Windows. Diagnostics for Windows provides detailed system information including:
• Processor type and speed
• Memory amount, mapping, and integrity
• Hardware peripheral availability/settings
• Hard drive type, space used/available
• System identification, asset tracking
Diagnostics for Windows may be pre installed on some models and can be downloaded free of
charge from www.hp.com.
How It Is
Purpose Established
Setup Utilities. [1]
Setup Utilities. [1]
Setup Utilities. [1]
Setup Utilities. [1]
Setup Utilities. [1]
Setup Utilities. [1]
Setup Utilities. [1]
Setup Utilities. [1]
Setup Utilities. [1]
Setup Utilities or
Diagnostics for
Windows.
Refer to Intelligent
Manageability
Guide.
Setup Utilities. [1]
Requires Kensington
cable lock accessory
to secure computer
to a fixed object.
Error Conditions and Messages
PS/2 Keyboard LED Indications
NUM lock Caps Lock Scroll Lock
LED LED LED
On Off Off
Off On Off
Blinking [1] Blinking [1] Blinking [1]
Blinking [1] Blinking [2] Blinking [2]
On [3] On [3] On [3]
NOTES:
[1] All LEDs will blink in sync twice, accompanied by 1 long and 3 short beeps
[2] LEDs will blink in sequence (NUM, Caps, then Scroll Lock)
[3] Accompanied by rising beep tone
Chassis LED and Beep Messages
Power LED # Beeps
Steady green
Blinks green @ 0.5 Hz
Blinks green @ 0.5 Hz
Off (clear)
Off (clear)
Blinks red 2 times @ 1 Hz [1]
Blinks red 3 times @ 1 Hz [1]
Blinks red 4 times @ 1 Hz [1]
Blinks red 5 times @ 1 Hz [1]
Blinks red 6 times @ 1 Hz [1]
Blinks red 7 times @ 1 Hz [1]
Blinks red 8 times @ 1 Hz [1]
Blinks red 9 times @ 1 Hz [1]
Blinks red10 times @ 1 Hz [1]
NOTE: Power LED blinks are repeated after a 2 second pause until issue is resolved,.
Beeps continue for 5 iterations and then stop.
Common POST Error Messages
Screen
Message Beeps Probable Cause
101-Option 1L, 1S 1. System ROM
ROM Error checksum error.
2. Expansion card.
3. CMOS corruption.
4. System board
102-System none DMA, timers
Board
Failure
164-Memory 2S Incorrect memory
Size Error configuration.
201-Memory none RAM failure
Error
301-, 304- none Keyboard failure.
Keyboard
Error
501-Display 1L, 2S Graphics controller.
Adapter
Failure
602-Diskette none Diskette in drive A not
Boot Error bootable
1720- none Hard drive is about to
SMART fail.
Hard Drive
Detects
Imminent
Failure
178x, 179x- none Hard drive or hard
Hard Drive drive circuitry failure.
Failure
NOTES: L = long, S = short
Event
ROMPaq diskette not present, faulty,
or drive problem
Password prompt
Invalid ROM and/or flash failed
Keyboard locked in network mode
Successful ROM flash
Event
None S0 System on (normal operation)
None S1 Suspend
None S3 Suspend to RAM
None S4 Suspend to disk
None S5 Soft off
2 Processor thermal shutdown
3 Processor not seated / installed
4 Power supply failure
5 Memory error
6 Video error
7 PCA failure
8 Invalid ROM checksum (error)
9 Wrong power supply input voltage
10 Bad option card
Recommended Action
1. Verify ROM, reflash if
required.
2. Remove suspected expansion
card, reboot.
3. Clear CMOS memory, reboot.
4. Replace system board.
1. Clear CMOS memory.
2. Remove expansion boards.
3. Replace system board.
1. Run Setup (F10).
2. Check DIMMs for proper
seating, proper type, and HP
compatibility.
3. Remove DIMMs singularly
and reboot to isolate faulty
DIMM.
Same as 164.
Check keyboard connection or
keys. Replace keyboard. If 304,
possible system board problem
1. Reseat graphics card.
2. Check monitor connection.
3. Replace graphics card.
Remove/replace diskette.
Run drive protection system test
if available. Check for firmware
patch for erroneous error
message.
Run Setup or hard drive
diagnostics.