HP Dc7600 HP Compaq dx7200 and dc7600 Series Personal Computers Service Refere - Page 2

Security Functions (Continued) 2. As soon as the computer is turned on, press and hold F10 until you enter Computer Setup. Press Enter to bypass the title screen, if necessary. If you do not press F10 as soon as the computer starts, a restart will be necessary. 3. Select Security, then select Setup Password or Power-On Password and follow the instructions on the screen. Before exiting, click File > Save Changes and Exit. 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 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 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 Purpose How It Is Established Removable Media Prevents booting from removable media Boot Control drives. Setup Utilities. [1] Serial, Parallel, USB, or Infrared Interface Control Prevents data transfer through integrated serial, parallel, USB, or infrared interface. Setup Utilities. [1] Power-On Password Prevents use of computer until password is Setup Utilities. [1] entered. Can apply to both initial startup and restart. Setup Password Prevents reconfiguration of computer until Setup Utilities. [1] password is entered. Network Server Provides unique security features for Mode computer used as server. Setup Utilities. [1] DriveLock [3] Prevents unauthorized access to data on drives supporting password protection. Setup Utilities. [1] Smart Software-controllable solenoid that, when Cover Lock [2, 3] activated, prevents unauthorized access to chassis interior. Setup Utilities. [1] Smart Cover Sensor [3] Indicates computer cover or side panel has been removed. Can be set to require password for restart after cover or panel removal. Setup Utilities. [1] Drive Protection System (DPS Diagnostic tool built into hard drives on select models designed to discover problems that might result in unwarranted drive replacement. Setup Utilities or Diagnostics for Windows. Memory Change Detects addition or removal of memory Alerts modules. Notifies system administrator. Refer to Intelligent Manageability Guide. Ownership Tag Displays ownership information as defined Setup Utilities. [1] by system administrator during system startup. (Protected by setup password). Kensington CableLock Provision Inhibits access to interior of computer chassis. Can also be used to secure computer to a fixed object for prevent theft. Requires Kensington cable lock accessory to secure computer to a fixed object. 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. [3] Available on some models. Diagnostic Functions Diagnostic functions are provided by the Setup Utility (in system ROM) and by Insight Diagnostics. 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 CD that ships with the computers. Error Conditions and Messages Chassis LED and Beep Messages Power LED # Beeps Event Steady green None S0 System on (normal operation) Blinks green @ 0.5 Hz None S1 Suspend Blinks green @ 0.5 Hz None S3 Suspend to RAM Off (clear) None S4 Suspend to disk Off (clear) None S5 Soft off Blinks red 2 times @ 1 Hz [1] 2 Processor thermal shutdown Blinks red 3 times @ 1 Hz [1] 3 Processor not seated / installed Blinks red 4 times @ 1 Hz [1] 4 Power supply failure Blinks red 5 times @ 1 Hz [1] 5 Memory error Blinks red 6 times @ 1 Hz [1] 6 Video error Blinks red 7 times @ 1 Hz [1] 7 PCA failure Blinks red 8 times @ 1 Hz [1] 8 Invalid ROM checksum (error) Blinks red 9 times @ 1 Hz [1] 9 Wrong power supply input voltage Blinks red 10 times @ 1 Hz [1] 10 Bad option card 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 Recommended Action 101-Option ROM Error 1L, 1S 1. System ROM checksum error. 2. Expansion card. 3. CMOS corruption. 4. System board 1. Verify ROM, reflash if required. 2. Remove suspected expansion card, reboot. 3. Clear CMOS memory, reboot. 4. Replace system board. 103-System Board Failure none DMA, timers 1. Clear CMOS memory. 2. Remove expansion boards. 3. Replace system board. 164-Memory 2S Incorrect memory Size Error configuration. 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. 201-Memory none RAM failure. Error Same as 164. 214-DIMM none Populated DIMM Configura- configuration is not tion Warning optimized. Rearrange the DIMMs so that each channel has the same amount of memory. 301-, 304Keyboard Error none Keyboard failure. Check keyboard connection or keys. Replace keyboard. If 304, possible system board problem 501-Display Adapter Failure 1L, 2S Graphics controller. 1. Reseat graphics card. 2. Check monitor connection. 3. Replace graphics card. 1720SMART Hard Drive Detects Imminent Failure none Hard drive is about to Run drive protection system test fail. if available. Check for firmware patch for erroneous error message. 1794- none A device is attached to If using Windows 2000 or Inaccessible SATA 1 and/or SATA Windows XP, change "SATA devices 3. Emulation" to "Separate IDE attached to Controller" in Computer Setup. SAATA 1 and/or SATA 3 If not using these operating systems, relocate the devices to SATA 0 or 1. 1796-SATA Cabling Error none One or more SATA Ensure SATA connections are devices are improperly used in ascending order starting attached. with SATA 0. NOTES: L = long, S = short