HP Xw8200 HP Workstation xw8200 Service and Technical Reference Guide (Complet - Page 112

Table 5-2 Diagnostic Light Codes (Continued) Chassis Indicator Lights (Continued) Power LED and Sound Activity Diagnosis and Service Action Blinks RED 3 times, once per CPU not installed: second, then 2-second pause, 3 beeps 1 Install CPU. 2 Reseat CPU. Blinks RED 4 times, once per second, then 2 second pause, 4 beeps Power supply failure: 1 Open the access panel and be sure the four-wire power supply cable is properly connected to the system board. 2 Locate faulty device by removing all devices and then reinstalling one at a time until workstation fails. Replace the device causing the failure. Continue adding devices to ensure all are functioning properly. 3 Check the power supply functionality. a Disconnect AC power. b Remove all internal power supply cables from the system board. c Plug in AC power. z If the power supply fan spins and the BIST LED lights, then the power supply is good. Replace the system board. z If the power supply fan does not spin or the BIST LED does not light, replace the power supply. Blinks RED 5 times, once per Pre-video memory error. second, then 2 second pause, 5 beeps 1 Reseat memory modules. 2 Replace memory modules one at a time to find the faulty module. 3 Replace third-party modules with HP memory. 4 Replace system board. Blinks RED 6 times, once per Pre-video graphics card error. second, then 2 second pause, For systems with integrated graphics, replace system board. 6 beeps For systems with graphic cards, 1 Reseat the graphics card. Power on the system. 2 Replace the graphics card. 3 Replace the system board. Blinks RED 7 times, once per System board failure (ROM detected failure before video). second, then 2 second pause, Replace system board. 7 beeps. Blinks RED 8 times, once per Invalid ROM based on bad checksum. second, then 2 second pause, 8 beeps 1 Reflash ROM. 2 Replace system board. Blinks RED 9 times, once per System powers on but is unable to boot. second, then 2 second pause, 9 beeps 1 Replace the system board. 2 Replace the processor. 112 SYSTEM DIAGNOSTICS AND TROUBLESHOOTING