HP Dc7600 HP Compaq Business PC dc7600 Series Personal Computer Illustrated Pa - Page 2

System Board Connectors and Jumpers (position of some untitled components may vary in location) CMOS CR1 E14 E49 J20 J21 J30 J31 J41 P1 P3 P5 P6 P8 P9 P10 P11 CMOS button 5V_AUX LED Boot block Password jumper PCI slot 1 PCI slot 2 PCI slot extender PCI Express slot x1 PCI Express slot x16 Main power (24 pin) Processor 12V header Front panel Internal chassis speaker Chassis fan Secondary chassis fan Diskette drive Aux audio in P20 P23 P24 P52 P60 P61 P62 P63 P70 P124 P125 XBT2 XMM1 XMM2 XMM3 XMM4 XU1 Primary IDE Front audio Front panel USB Serial port header Primary Serial ATA (SATA) Port connector Secondary Serial ATA (SATA) Port connector Third Serial ATA (SATA) Port connector Fourth Serial ATA (SATA) Port connector CPU fan Hood lock Hood sensor Battery Memory socket Memory socket Memory socket Memory socket Microprocessor socket Clearing CMOS The computer's configuration (CMOS) may occasionally be corrupted. If it is, it is necessary to clear the CMOS memory using switch SW50. To clear and reset the configuration, perform the following procedure: 1. Turn off the computer and any external devices, and disconnect the power cord from the power outlet. Ä CAUTION: The power cord must be disconnected from the power source before pushing the Clear CMOS Button (NOTE: All LEDs on the board should be OFF). Failure to do so may damage the system board. 2. Remove the access panel. 3. Press the CMOS button located on the system board. 4. Replace the access panel. 5. Turn the computer on and run Computer Setup (F10 Setup Utility) to reconfigure the system. Disabling or Clearing the Power-On and Setup Passwords 1. Turn off the computer and any external devices, and disconnect the power cord from the power outlet. 2. Remove the access panel. 3. Locate the header and jumper labeled E49. 4. Remove the jumper from pins 1 and 2. Place the jumper over pin 2 only, in order to avoid losing it. 5. Replace the access panel. 6. Plug in the computer and turn on power. Allow the operating system to start. NOTE: Placing the jumper on pin 2 clears the current passwords and disables the password features. 7. To re-enable the password features, repeat steps 1-3, then replace the jumper on pins 1 and 2. 8. Repeat steps 5-6, then establish new passwords. Refer to the Desktop Management Guide and the Computer Setup (F10) Utility Guide for instructions on establishing new passwords. Computer Setup (F10) Utility Features (not all features may be available) File Storage Security Power System Information About Set Time and date Device Configuration Storage Options Smart Card Options Setup Password Power-On Password Password Options OS Power Management Flash system ROM Replicated Setup Default Setup DPS Self-Test Boot Order Smart Cover Embedded Security Device Security Network Service Boot Hardware Power Management Apply Defaults and Exit Ignore Changes and Exit Save Changes and Exit System IDs Drivelock Security OS Security Data Execution Prevention Thermal Advanced Power-On Options Execute Memory Test BIOS Power On Onboard Devices PCI Devices PCI VGA Configuration Bus Options Device Options Note: See the Computer Setup (F10) Utility Guide on the Documentation and Diagnostics CD. PCI Extender Card Connectors J23 PCI slot 4 J24 PCI slot 5 P30 Male expansion plug System Hardware Interrupts IRQ System Function 0 Timer Interrupt 1 Keyboard 2 Interrupt Controller Cascade 3 Serial Port (COM B) 4 Serial Port (COM A) 5 Unused, available for PCI 6 Diskette Drive 7 Parallel Port (LPT 1) IRQ System Function 8 Real-Time Clock 9 Unused 10 Unused, available for PCI 11 Unused, available for PCI 12 Mouse 13 Coprocessor 14 Primary ATA (IDE) Controller Computer Diagnostic LEDs (on front of computer) LED Power Power Power Power Power Power Power Power Power Power Power Power Power Power Hard Drive Color Green Green Green Clear Clear Red* Red* Red* Red* Red* Red* Red* Red* Red* Green LED/Beep Activity On 1 blink every 2 seconds 1 blink every 2 seconds Off Off 2 blinks 1 second apart 3 blinks 1 second apart 4 blinks 1 second apart 5 blinks 1 second apart 6 blinks 1 second apart 7 blinks 1 second apart 8 blinks 1 second apart 9 blinks 1 second apart 10 blinks 1 second apart Blinking State/Message (S0) Computer on (S1) Suspend Mode (S3) Suspend to RAM (S4) Hibernation Mode (S5) Computer off CPU thermal shutdown CPU not installed Power supply overload (crow bar) Defective or missing memory Defective or missing graphics System board failure (detected prior to video) Invalid ROM based on checksum System not fetching code System hang while loading an option ROM Hard drive activity *Blinking codes are repeated after a 2 second pause. Beeps stop after fifth iteration but LEDs continue until problem is resolved.