HP dc5000 - Microtower PC Service Reference Card page 2

Security Functions (Continued)
To change a password:
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down >
Restart the Computer. To change the setup password, run Computer Setup.
2. 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.
3. 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 or Setup password:
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.
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.
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
FailSafe key contact HP or your HP reseller.
[3] Available on select 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 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 [2] 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
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]
NOTE:
[1] Repeated after 2-second pause
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-, 103- none DMA, timers
System
Board
Failure
164-Memory 2S Incorrect memory
Size Error configuration.
201-Memory none RAM failure
Error
202-Memory none DIMMs do not match.
Type
Mismatch
212-Failed none Processor has failed to
Processor initialize.
301-, 304- none Keyboard failure.
Keyboard
Error
411-Network 2S NIC interrupt conflicts
Interface with another device.
Card
Interrupt
Conflict
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
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
# Beeps Event
None S0 System on (normal operation)
None S1 Suspend
None S3 Suspend to RAM
None S4 Suspend to disk
None S5 Soft off
None Processor thermal shutdown
None Processor not seated / installed
None Power supply failure
5 Memory error
6 Video error
7 PCA failure
8 Invalid ROM checksum (error)
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.
If those steps fail, replace system
board.
Replace memory modules with
matched sets.
1. Check processor seating.
2. Replace processor.
Check keyboard connection or
keys. Replace keyboard. If 304,
possible system board problem
Reset IRQ (reboot system).
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.