HP Z600 HP Z600 Workstation Maintenance and Service Guide - Page 195

Table 6-8 Diagnostic lights and audible codes (continued) Activity Possible cause Recommended action 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 might be powered even when the workstation is off. To prevent damage, disconnect the workstation power cord before you remove a component. 1. Clear CMOS. NOTE: Refer to the Maintenance and Service Guide for the workstation model for detailed information on clearing CMOS. 2. Upgrade the ROM using SoftPaq, either from the hard disk drive, CD, diskette, or USB removable device (for example., HP Drive Key). See the ROM Flash section of the Maintenance and Service Guide at http://www.hp.com/support/workstation_manuals. SoftPaq is a self-extracting executable, which contains instructions for its use, that enables you to upgrade the ROM. To download the Softpaq executable, visit http://www.hp.com/go/workstationsupport. 3. The problem might be on the system board. Contact HP for assistance. Red Power LED blinks nine System powers on but does ● times, once every second, not start. followed by a two-second pause. Nine beeps. ● The problem might be on the system board. Contact HP for assistance. The problem might be in the CPU. Contact HP for assistance. ENWW Diagnostic codes and errors 183