System Board Connectors and Jumpers (position of some untitled components may vary in location)
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.
ÄCAUTION: 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
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
8.Repeat steps
Refer to the Desktop Management Guide and the Computer Setup (F10) Utility Guide for instructions on establishing new passwords.
CMOS | CMOS button |
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CR1 | 5V_AUX LED |
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E14 | Boot block |
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E49 | Password jumper |
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J20 | PCI slot 1 |
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J21 | PCI slot 2 |
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J30 | PCI slot extender |
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J31 | PCI Express slot x1 |
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J41 | PCI Express slot x16 |
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P1 | Main power (24 pin) |
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P3 | Processor 12V header |
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P5 | Front panel |
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P6 | Internal chassis speaker |
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P8 | Chassis fan |
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P9 | Secondary chassis fan |
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P10 | Diskette drive |
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P11 | Aux audio in |
P20 | Primary IDE |
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P23 | Front audio |
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P24 | Front panel USB |
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P52 | Serial port header |
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P60 | Primary Serial ATA (SATA) Port connector |
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P61 | Secondary Serial ATA (SATA) Port connector |
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P62 | Third Serial ATA (SATA) Port connector |
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P63 | Fourth Serial ATA (SATA) Port connector |
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P70 | CPU fan |
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P124 | Hood lock |
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P125 | Hood sensor |
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XBT2 | Battery |
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XMM1 | Memory socket |
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XMM2 | Memory socket |
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XMM3 | Memory socket |
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XMM4 | Memory socket |
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XU1 | Microprocessor socket |
Computer Setup (F10) Utility Features (not all features may be available)
File | System Information | Flash system ROM | Apply Defaults and Exit | |
About | Replicated Setup | Ignore Changes and Exit | ||
| Set Time and date | Default Setup | Save Changes and Exit | |
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Storage | Device Configuration | DPS |
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Storage Options | Boot Order |
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| Smart Card Options | Smart Cover | System IDs | |
Security | Setup Password | Embedded Security | Drivelock Security | |
Device Security | OS Security | |||
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| Password Options | Network Service Boot | Data Execution Prevention | |
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Power | OS Power Management | Hardware Power Management | Thermal | |
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Advanced | Onboard Devices | Bus Options | ||
Execute Memory Test | PCI Devices | Device Options | ||
| BIOS Power On | PCI VGA Configuration |
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Note: See the Computer Setup (F10) Utility Guide on the Documentation and Diagnostics CD.
PCI Extender Card Connectors
J23 | PCI slot 4 |
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| P30 | Male expansion plug | |
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J24 | PCI slot 5 |
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System Hardware Interrupts |
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IRQ | System Function |
| IRQ | System Function | ||
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0 | Timer Interrupt | 8 |
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1 | Keyboard | 9 |
| Unused | ||
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2 | Interrupt Controller Cascade | 10 |
| Unused, available for PCI | ||
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3 | Serial Port (COM B) | 11 |
| Unused, available for PCI | ||
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4 | Serial Port (COM A) | 12 |
| Mouse | ||
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5 | Unused, available for PCI | 13 |
| Coprocessor | ||
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6 | Diskette Drive | 14 |
| Primary ATA (IDE) Controller | ||
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7 | Parallel Port (LPT 1) |
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Computer Diagnostic LEDs (on front of computer)
LED | Color | LED/Beep Activity | State/Message | |
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Power | Green | On | (S0) | Computer on |
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Power | Green | 1 blink every 2 seconds | (S1) | Suspend Mode |
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Power | Green | 1 blink every 2 seconds | (S3) | Suspend to RAM |
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Power | Clear | Off | (S4) | Hibernation Mode |
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Power | Clear | Off | (S5) | Computer off |
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Power | Red* | 2 blinks 1 second apart | CPU thermal shutdown | |
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Power | Red* | 3 blinks 1 second apart | CPU not installed | |
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Power | Red* | 4 blinks 1 second apart | Power supply overload (crow bar) | |
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Power | Red* | 5 blinks 1 second apart | Defective or missing memory | |
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Power | Red* | 6 blinks 1 second apart | Defective or missing graphics | |
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Power | Red* | 7 blinks 1 second apart | System board failure (detected prior to video) | |
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Power | Red* | 8 blinks 1 second apart | Invalid ROM based on checksum | |
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Power | Red* | 9 blinks 1 second apart | System not fetching code | |
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Power | Red* | 10 blinks 1 second apart | System hang while loading an option ROM | |
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Hard Drive | Green | Blinking | Hard drive activity | |
*Blinking codes are repeated after a 2 second pause. Beeps stop after fifth iteration but LEDs continue until problem is resolved.