Desktop Management Guide
Page 13
...When the bootblock detects an invalid system ROM, The System Power LED blinks RED 8 times, one and restart the computer. 5. If there is a diskette in the unlikely event of a ROM flash failure, for a valid system ROM flash when power to the system is valid, the system starts normally. ...during a ROM upgrade. Insert a ROMPaq diskette into the diskette drive. 3. If a setup password has been established, the Caps Lock light will turn off . 9. Desktop Management Guide www.hp.com 9 To recover the system after it enters Boot Block recovery mode, complete the following steps: 1. If ...
...When the bootblock detects an invalid system ROM, The System Power LED blinks RED 8 times, one and restart the computer. 5. If there is a diskette in the unlikely event of a ROM flash failure, for a valid system ROM flash when power to the system is valid, the system starts normally. ...during a ROM upgrade. Insert a ROMPaq diskette into the diskette drive. 3. If a setup password has been established, the Caps Lock light will turn off . 9. Desktop Management Guide www.hp.com 9 To recover the system after it enters Boot Block recovery mode, complete the following steps: 1. If ...
Getting Started
Page 20
... the documentation that came with a graphics card: 1. Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps six times. Replace the graphics card. 3. Replace the system board. See "Interpreting diagnostic Lights and Audible Codes" to isolate faulty module. 3. Replace the system...systems with HP memory. 4. Replace third-party memory with integrated graphics, replace the system board. 16 www.hp.com Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps five times.
... the documentation that came with a graphics card: 1. Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps six times. Replace the graphics card. 3. Replace the system board. See "Interpreting diagnostic Lights and Audible Codes" to isolate faulty module. 3. Replace the system...systems with HP memory. 4. Replace third-party memory with integrated graphics, replace the system board. 16 www.hp.com Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps five times.
Getting Started
Page 22
... running. 2. Reseat the processor. 18 www.hp.com Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes two times, once every second, followed by a two-second pause. Red Power LED stays on. Contact an authorized reseller or service provider. OR The heatsink...
... running. 2. Reseat the processor. 18 www.hp.com Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes two times, once every second, followed by a two-second pause. Red Power LED stays on. Contact an authorized reseller or service provider. OR The heatsink...
Getting Started
Page 23
Replace the power supply. 5. Red Power LED 5 flashes five times, once every second, followed by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards.) Power on the system. ... is set to isolate faulty module. 3. Replace the system board. www.hp.com 19 Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes once every two seconds. If the system enters the POST, then power off and replace one at a time...
Replace the power supply. 5. Red Power LED 5 flashes five times, once every second, followed by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards.) Power on the system. ... is set to isolate faulty module. 3. Replace the system board. www.hp.com 19 Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes once every two seconds. If the system enters the POST, then power off and replace one at a time...
Getting Started
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... pause. Replace the system board. 20 www.hp.com Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED 6 flashes six times, once every second, followed by a two second pause. System board failure... (ROM detected failure prior to video). Replace the system board. See the "ROM Flash" section of the Desktop Management Guide on the Documentation...
... pause. Replace the system board. 20 www.hp.com Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Red Power LED 6 flashes six times, once every second, followed by a two second pause. System board failure... (ROM detected failure prior to video). Replace the system board. See the "ROM Flash" section of the Desktop Management Guide on the Documentation...
Getting Started - Business Desktops
Page 20
... DIMMs. Power on the front of the computer. Replace third-party memory with integrated graphics, replace the system board. 16 Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps six times. Replace DIMMs one at a time...were installed in the wrong location. 1. Replace the graphics card. 3. Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps five times. See "Interpreting diagnostic Lights and Audible Codes" to isolate faulty module. 3. Reseat the graphics card. For ...
... DIMMs. Power on the front of the computer. Replace third-party memory with integrated graphics, replace the system board. 16 Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps six times. Replace DIMMs one at a time...were installed in the wrong location. 1. Replace the graphics card. 3. Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps five times. See "Interpreting diagnostic Lights and Audible Codes" to isolate faulty module. 3. Reseat the graphics card. For ...
Getting Started - Business Desktops
Page 22
... thermal protection activated: A fan may be blocked or not turning. Ensure the fan is not spinning, then replace processor fan. 4. Red Power LED stays on. None Processor not installed (not an indicator of bad processor). 1. If fan is plugged in and seated properly..., but is fully/properly seated or installed. 3. Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes Continued Activity Beeps Possible Cause Recommended Action Red Power LED None flashes two times, once every second, followed by a two-second pause. Reseat processor heatsink...
... thermal protection activated: A fan may be blocked or not turning. Ensure the fan is not spinning, then replace processor fan. 4. Red Power LED stays on. None Processor not installed (not an indicator of bad processor). 1. If fan is plugged in and seated properly..., but is fully/properly seated or installed. 3. Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes Continued Activity Beeps Possible Cause Recommended Action Red Power LED None flashes two times, once every second, followed by a two-second pause. Reseat processor heatsink...
Getting Started - Business Desktops
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Replace the power supply. 5. Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes Continued Activity Beeps Possible Cause Recommended Action Red Power LED None flashes once every two seconds. Power failure (power supply is seated into the connector on the system. ...2. Check that is causing the failure. Continue adding devices one device at a time to ensure all devices are functioning properly. 4. Red Power LED 5 flashes five times, once every second, followed by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards...
Replace the power supply. 5. Getting Started Diagnostic Front Panel Lights (LEDs) and Audible Codes Continued Activity Beeps Possible Cause Recommended Action Red Power LED None flashes once every two seconds. Power failure (power supply is seated into the connector on the system. ...2. Check that is causing the failure. Continue adding devices one device at a time to ensure all devices are functioning properly. 4. Red Power LED 5 flashes five times, once every second, followed by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards...
Getting Started - Business Desktops
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...Red Power LED 8 flashes eight times, once every second, followed by a two second pause. Power on the Documentation Library CD. 2. See the "ROM Flash" section of the Desktop... Management Guide on the system. 2. Invalid ROM based on bad checksum. 1. Replace the system board. 20 Reseat the graphics card. Replace the system board. Replace the graphics card. 3. System board failure Replace the system board. (ROM detected failure prior to video). For systems with integrated graphics, replace the system board. Red... Power LED 7 flashes seven times...
...Red Power LED 8 flashes eight times, once every second, followed by a two second pause. Power on the Documentation Library CD. 2. See the "ROM Flash" section of the Desktop... Management Guide on the system. 2. Invalid ROM based on bad checksum. 1. Replace the system board. 20 Reseat the graphics card. Replace the system board. Replace the graphics card. 3. System board failure Replace the system board. (ROM detected failure prior to video). For systems with integrated graphics, replace the system board. Red... Power LED 7 flashes seven times...
HP Compaq Business Desktop d500 Service Reference Guide, 5th Edition
Page 37
Desktop Management 3.4.3 FailSafe Boot Block ROM The FailSafe Boot Block ROM allows for system recovery in the ... successfully reprograms the ROM, then the three keyboard lights will turn on and you will turn on again to enter the password. 4. A rising tone series of a ROM flash failure, for a valid system ROM flash when power to the system is turned on the... turn the power off the power. 2. When the bootblock detects an invalid system ROM, The System Power LED blinks RED 8 times, one and restart the computer. If there is displayed on . ■ If the system ROM is attached to ...
Desktop Management 3.4.3 FailSafe Boot Block ROM The FailSafe Boot Block ROM allows for system recovery in the ... successfully reprograms the ROM, then the three keyboard lights will turn on and you will turn on again to enter the password. 4. A rising tone series of a ROM flash failure, for a valid system ROM flash when power to the system is turned on the... turn the power off the power. 2. When the bootblock detects an invalid system ROM, The System Power LED blinks RED 8 times, one and restart the computer. If there is displayed on . ■ If the system ROM is attached to ...
HP Compaq Business Desktop d500 Service Reference Guide, 5th Edition
Page 195
... LED turns green, then: 1. Check that both power supply cables are properly connected to power on. Ensure computer air vents are not flashing. Ensure the fan is on the system board is fully/properly seated or installed. 3. Open hood and check that the unit is set.... Check that the power button harness is off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause. If the 3.3 V_aux light on , then replace the power button harness. 5. If the 3.3 V_aux light on green then: 1. Service Reference Guide, d500 336492-005 D-3
... LED turns green, then: 1. Check that both power supply cables are properly connected to power on. Ensure computer air vents are not flashing. Ensure the fan is on the system board is fully/properly seated or installed. 3. Open hood and check that the unit is set.... Check that the power button harness is off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause. If the 3.3 V_aux light on , then replace the power button harness. 5. If the 3.3 V_aux light on green then: 1. Service Reference Guide, d500 336492-005 D-3
HP Compaq Business Desktop d500 Service Reference Guide, 5th Edition
Page 202
... saver features enabled. Monitor is broken up, rolls, jitters, or flashes. Solution For systems with energy saver features. Adjust the monitor brightness and contrast controls. Fluorescent lights or fans may be activated when the monitor is securely connected to the...monitor. D-10 336492-005 Service Reference Guide, d500 Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Power LED flashes Red six times, once every second, followed by moving them apart. 3. The brightness and contrast controls are not properly connected...
... saver features enabled. Monitor is broken up, rolls, jitters, or flashes. Solution For systems with energy saver features. Adjust the monitor brightness and contrast controls. Fluorescent lights or fans may be activated when the monitor is securely connected to the...monitor. D-10 336492-005 Service Reference Guide, d500 Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Power LED flashes Red six times, once every second, followed by moving them apart. 3. The brightness and contrast controls are not properly connected...