Failsafe Boot Block Rom; Password Security; Security Features - HP Compaq dx7300 MT Supplementary Manual

Failsafe Boot Block ROM

The computer comes with a reprogrammable flash system ROM (read only memory). To
upgrade the ROM, download the latest ROM BIOS image from the HP Web site (www.hp.com)
and follow the online GUI/instructions.
The system ROM includes a Failsafe Boot Block that is protected during the flash process and
allows the computer to be restarted in the unlikely event of an unsuccessful ROM flash.
If the system detects an invalid system ROM during the boot sequence, the Failsafe Boot Block
attempts to locate a valid BIOS image on removable media.
To recover from the Boot Block recovery mode complete the following steps:
Boot Block Recovery
1. Remove any bootable media from the computer and turn off power.
2. Insert a flash drive or CD containing the ROM BIOS.
3. Turn on power to the system.
4. The system will automatically flash the ROM. After a successful flash, the system will either
automatically restart of prompt the user to unplug the unit, wait 5 seconds, reattach the power
cord, then press the power button.

Password Security

Establishing a Setup password:
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down >
Restart.
2. As soon as the computer is turned on, press F10 when the monitor light turns green to enter
Computer Setup. Press Enter to bypass the title press, if necessary. If you do not press F10
when prompted, a restart will be necessary.
3. Select Security > Setup Password and follow the instructions on the screen.
4. Before exiting, click File > Save Changes and Exit.
Establishing a Setup password:
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down >
Restart.
2. As soon as the computer is turned on, press F10 when the monitor light turns green to enter
Computer Setup. Press Enter to bypass the title press, if necessary. If you do not press F10
when prompted, a restart will be necessary.
3. Select Security > Power-On Password and follow the instructions on the screen.
Before exiting, click File > Save Changes and Exit.
Changing a password:
1. Turn on or restart the computer. If you are in Windows, click Start> Shut Down > Restart.
To change the Setup password, go to step 2.
To change the Power-on password, go to step 3.
2. To change the Setup password, as soon as the computer is turned on, press F10 when the
monitor light turns green to enter Computer Setup. Press Enter to bypass the title screen, if
necessary.
3. 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.
4. Press ENTER.
The new password will take effect the next time the computer is restarted.
Deleting a password
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart.
To delete the Setup password, go to step 2.
To delete the Power-On password, go to step 3.
2. To change the Setup password, as soon as the computer is turned on, press F10 when the
monitor light turns green to enter Computer Setup. Press Enter to bypass the title screen, if
necessary.
3. When the key icon appears, type your current password followed by a slash (/) or alternate
delimiter character as shown. Example: currentpassword/
4. Press Enter.

Security Features

NOTE:
For more information about Setup Utilities refer to the Computer Setup Menu on the previous
page or in the Service Reference Guide.
Diagnostic Functions
Diagnostic functions are provided by the Setup Utility (in system ROM) and by Insight Diag-
nostics. Insight Diagnostics 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
Insight Diagnostics may be found on the Documentation and Diagnostics CD that shipped with
the computer. The tool may also be downloaded from the hp Web site using the following pro-
cedure:
1. Go to www.hp.com
2. Click the Software and Download driver link.
3. Enter the product number (for example, dc7700) in the text box and press the Enter key.
4. Select the specific product.
5. Select the OS.
6. Click the Diagnostics link.
7. Select HP Insight Diagnostics Offline Edition.
8. Select the proper language and click Download.
NOTE: The download includes instructions on how to create a bootable CD. The Softpaq num-
ber is SP33665 or later.
dx7300 Illustrated Parts & Service Map, MT Chassis
Error Conditions and Messages
Feature
Floppy drive controller
Device Boot Disabling
Security Option
BIOS Write Protect
USB Controller
Diagnostic LEDs
LED Color LED Activity
Power Green On
Power Green 1 blink every 2 seconds
Power Red 1 blink every second followed
by a 2 second pause
Power Red 3 blinks, 1 blink every second
followed by a 2 second pause
Power Red 4 blinks, 1 blink every second
followed by a 2 second pause
Power Red 5 blinks, 1 blink every second
followed by a 2 second pause
Power Red 6 blinks, 1 blink every second
followed by a 2 second pause
Power Red 7 blinks, 1 blink every second
followed by a 2 second pause
Power Red 8 blinks, 1 blink every second
followed by a 2 second pause
Power Red 9 blinks, 1 blink every second
followed by a 2 second pause
Power Red 10 blinks, 1 blink every second
followed by a 2 second pause
none none System does not power on and
LEDs are not flashing
Common POST Error Messages
Screen
Message Beeps
101-Option 1L, 1S
ROM Error
103-System none
Board
Failure
164- 2S
Memory Size
Error
and
201
Memory Error
214-DIMM none
Configuration
Warning
301-, 304-Key- none
board error
501-Display 1L, 2S
Adapter Failure
1720-SMART none
Hard Drive
Detects Immi-
nent Failure
1796-SATA none
Cabling Error
1801-Micro- none
code Patch
Error
NOTES: L = long, S = short
Clearing CMOS
1. Shut down the system and disconnect the power cord from the power outlet.
2. Remove the chassis access panel.
3. On the system board, press and hold the CMOS button for 5 seconds.
4. Replace the chassis access panel and reconnect the power cord.
5. Turn on the computer and allow it to start.
438829-003
Purpose
Prevents the transfer of data to or from the
floppy drive.
Prevents booting from and or all of these
devices: Internal or external USB, Internal
ODD, or Internal FDD
Prevents use of computer until password is
entered. Can apply to both initial startup and
restart.
Restricts ability to change ROM BIOS with-
out approval.
Allows you to disable or enable all USB
devices.
State/Message
Computer on
Normal Suspend Mode
CPU thermal shutdown
Processor not installed
Power failure (power supply overload)
Pre-video memory error
Pre-video graphics error
System board failure (ROM
Invalid ROM based on Checksum
System powers on but is unable to boot
Bad option card
System unable to power on
Probable Cause Recommended Action
1. System ROM checksum 1. Verify ROM, reflash if required
error.
2. Remove suspected card, reboot
2. Expansion card.
3. Clear CMOS memory, reboot
3. CMOS corruption.
4. Replace system board
4. System board.
DMA, timers 1. Clear CMOS memory.
2. Remove expansion board.
3. Replace system board.
Incorrect memory configu- 1. Run Setup (F10).
ration
2. Check DIMMs for proper
seating, type, and HP
compatibility.
3. Remove DIMMs singularly and
reboot to isolate faulty DIMM.
Populated DIMM configura- Rearrange the DIMMs so that
tion is not optimized each channel has the same amount
of memory.
Keyboard failure. Check keyboard connection or
keys. Replace keyboard. If 304,
possible system board problem.
Graphics controller. 1. Reseat graphics card.
2. Check monitor connection.
3. Replace graphics card.
Hard drive is about to fail. Run drive protection system test if
available. Check for firmware
patch for erroneous error message.
One or more SATA devices Ensure SATA0 and SATA1 are
are improperly attached. used before any other STAT con-
nectors.
Processor not supported by 1. Upgrade BIOS to proper
ROM BIOS.
version.
2. Change the processor.
How It Is
Established
Setup Utilities
Setup Utilities
Setup Utilities
Setup Utilities.
Setup Utilities
page 4