Password Security
Establishing a Setup or Power-On 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 screen, if necessary. If you do not press F10 when prompted, a restart will be necessary.
3.To establish a Setup password, select Security > Setup Password and follow the instructions
on the screen. - or -
To establish a
4.Before exiting, click File > Save Changes and Exit.
Changing a Setup or Power-On 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
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 delimiter 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 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 Power-On or Setup 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
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.
Hewlett-Packard Vision Diagnostics
The
Use HP Vision Diagnostics to determine if all the devices installed on the computer are recog- nized by the system and functioning properly. Running tests is optional but recommended after installing or connecting a new device.
To access HP Vision Diagnostics, you must create a Recovery Disc Set then boot to the CD con- taining the utility. It can also be downloaded from http://www.hp.com and either burned to CD or installed to a USB flash drive.
1.In Windows Explorer, go to C:\SWSetup\ISOs and burn the file Vision Diagnostics.ISO to a CD or copy it to a USB flash drive.
2.While the computer is on, insert the CD in the Optical Drive or USB flash drive in a USB port on the computer.
3.Shut down the operating system and turn off the computer.
4.Turn on the computer. The system will boot into HP Vision Diagnostics.
NOTE: If the system does not boot to the CD in the optical drive or to the USB flash drive, you may need to change the boot order in the Computer Setup (F10) utility.
5.At the boot menu, select either the HP Vision Diagnostics utility to test the various hardware components in the computer or the HP Memory Test utility to test memory only.
NOTE: The HP Memory Test is a comprehensive memory diagnostic utility that is run as a
6.If running HP Vision Diagnostics, select the appropriate language and click Continue.
7.In the End User License Agreement page, select Agree if you agree with the terms. The HP Vision Diagnostics utility launches with the Survey tab displayed.
Clearing CMOS
1.Turn off the computer and any external devices, 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.
Diagnostic LEDs
LED | Color | LED Activity | State/Message |
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Power | Green | On | Computer on |
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Power | Green | 1 blink every 2 seconds | Normal Suspend Mode |
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Power | Red | 1 blink every second followed | CPU thermal shutdown |
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| by a 2 second pause |
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Power | Red | 3 blinks, 1 blink every second | Processor not installed |
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| followed by a 2 second pause |
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Power | Red | 4 blinks, 1 blink every second | Power failure (power supply overload) |
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| followed by a 2 second pause |
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Power | Red | 5 blinks, 1 blink every second | |
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| followed by a 2 second pause |
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Power | Red | 6 blinks, 1 blink every second | |
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| followed by a 2 second pause |
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Power | Red | 7 blinks, 1 blink every second | System board failure (ROM |
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| followed by a 2 second pause |
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Power | Red | 8 blinks, 1 blink every second | Invalid ROM based on Checksum |
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| followed by a 2 second pause |
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Power | Red | 9 blinks, 1 blink every second | System powers on but is unable to boot |
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| followed by a 2 second pause |
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Power | Red | 10 blinks, 1 blink every second | Bad option card |
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| followed by a 2 second pause |
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Power | Red | 11 blinks, 1 blink every second | The current processor does not support |
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| followed by a 2 second pause | a feature previously enabled on this |
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| system. |
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none | none | System does not power on and | System unable to power on |
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| LEDs are not flashing |
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Common POST Error Messages
Screen Message | Probable Cause | Recommended Action | ||
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1. System ROM checksum | 1. | Verify ROM, reflash if required | ||
| error. | 2. | Remove suspected card, reboot | |
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| 2. Expansion board option | 3. | Clear CMOS memory, reboot | |
| ROM checksum | |||
| 4. | Replace system board | ||
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DMA, timers | 1. | Clear CMOS memory. | ||
Failure |
| 2. | Remove expansion boards. | |
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| 3. | Replace system board. | |
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Enable network controller | For this setting to take effect, | |||
troller has been enabled |
| remove power from the system for | ||
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| 15 seconds. | ||
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Incorrect memory configu- | 1. | Run Setup (F10). | ||
and | ration | 2. | Check DIMMs for proper | |
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| seating, type, and HP | ||
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| compatibility. | |
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| 3. | Remove DIMMs singularly and | |
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| reboot to isolate faulty DIMM. | |
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| 4. | Replace system board. | |
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Memory module missing | 1. | Verify memory module type. | ||
ory Module in Memory | SPD information or incom- | 2. | Try another memory socket. | |
Socket(s) X, X, | patible with chipset | |||
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| 3. | Replace with module | |
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| conforming to SPD standard. | |
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Populated DIMM configura- | Rearrange the DIMMs so that | |||
tion Warning | tion is not optimized | each channel has the same amount | ||
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| of memory. | ||
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Keyboard failure | Check keyboard connection or | |||
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| keys. Check connector for bent of | ||
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| missing pins. Replace keyboard. If | ||
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| 304, possible system board prob- | ||
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| lem. | ||
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Graphics display controller | 1. | Reseat graphics card. | ||
Failure |
| 2. | Clear CMOS. | |
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| 3. | Check monitor connection. | |
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| 4. | Replace graphics card. | |
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Flash screen image has | Reflash the system ROM with the | |||
Corrupted | errors | latest BIOS image. | ||
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Fan not connected or mal- | 1. | Reseat fan. | ||
detected | functioning | 2. | Reseat fan cable. | |
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detected |
| 3. | Replace fan. | |
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Integrated graphics control- | Replace system board if minimal | |||
detected unreliable | ler display cache not work- | graphics degrading is an issue. | ||
| ing properly and disabled |
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Hard drive is about to fail | 1. | Determine if hard drive is | ||
Detects Imminent Failure |
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| giving correct error message. | |
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| Enter Computer Setup and run | |
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| the Drive Protection System | |
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| test under Storage > DPS Self- | |
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| test. | |
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| 2. | Apply hard drive firmware | |
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| patch if applicable. | |
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| 3. | Back up contents and replace | |
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| hard drive. | |
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One or more SATA devices | Ensure SATA connectors are used | |||
| are improperly attached. For | in ascending order. For one | ||
| optimal performance, the | device, use SATA 0. For two | ||
| SATA 0 and SATA 1 con- | devices, use SATA 0 and SATA 1. | ||
| nectors must be used before | For three devices, use SATA 0, | ||
| SATA 2 and SATA 3 | SATA1, and SATA 2. | ||
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Processor not supported by | 1. | Upgrade BIOS to proper | ||
Error | ROM BIOS |
| version. | |
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| 2. | Change the processor. | |
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HP Compaq 4000 Pro, SFF Chassis | page 4 |