HP Xw6400 Setup and Troubleshooting Guide - Page 25

Table 4-3 Diagnostic Lights and Audible Codes (continued) Activity Possible Cause Recommended Action c. Plug in the AC power. ● If the power supply fan spins and the BIST* LED lights, the power supply is functional. The problem may be on the system board. Contact HP for assistance. ● If the power supply fan does not spin or the BIST* LED does not light, the problem may be in the power supply. Contact HP for assistance. Red Power LED blinks five times, once every second, followed by a two-second pause. Five beeps. Pre-video memory error CAUTION Internal components may be powered even when the system is off. To prevent damage, disconnect the workstation power cord before you remove a component. 1. Reseat DIMMs 2. Replace DIMMs one at a time to isolate faulty module 3. Replace third-party memory with HP memory. 4. The problem may be on the system board. Contact HP for assistance. Red Power LED blinks six times, once every second, followed by a two-second pause. Six beeps. Pre-video graphics error. CAUTION Internal components may be powered even when the system is off. To prevent damage, disconnect the workstation power cord before you remove a component. 1. Reseat the graphics card. 2. The problem may be on the graphics card. Contact HP for assistance. 3. The problem may be on the system board. Contact HP for assistance. Red Power LED blinks seven times, once every second, followed by a twosecond pause. Seven beeps. System board failure (ROM 1. Clear CMOS. detected failure prior to video). 2. The problem may be on the system board. Contact HP for assistance. Red Power LED blinks eight times, once every second, followed by a two-second pause. Eight beeps. Invalid ROM based on bad checksum. CAUTION Internal components may be powered even when the system is off. To prevent damage, disconnect the workstation power cord before you remove a component. 1. Clear CMOS. 2. Upgrade the ROM using a ROMPaq diskette, CD, diskette, or USB removable device (e.g., HP Drive Key). See the "ROM Flash" section of the Service and Technical Reference Guide at http://www.hp.com/support/workstation_manuals. A ROMPaq is a software support bundle of files that allows you to upgrade your ROM. 3. The problem may be on the system board. Contact HP for assistance. Red Power LED blinks nine times, once every second, followed by a two-second pause. Nine beeps. System powers on but does 1. not boot. 2. The problem may be on the system board. Contact HP for assistance. The problem may be in the processor. Contact HP for assistance. ENWW Basic Troubleshooting 21