HP Z400 - Workstation Maintenance And Service Manual page 179

Table 6-8 Diagnostic lights and audible codes (continued)
Activity
Red Power LED blinks six
times, once every second,
followed by a two-second
pause. Six beeps.
Red Power LED blinks
seven times, once every
second, followed by a two-
second pause. Seven
beeps.
Red Power LED blinks eight
times, once every second,
followed by a two-second
pause. Eight beeps.
Red Power LED blinks nine
times, once every second,
followed by a two-second
pause. Nine beeps.
ENWW
Possible cause
Pre-video graphics error.
System board failure (ROM
detected failure prior to
video).
Invalid ROM based on bad
checksum.
System powers on but does
not start.
Recommended action
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. Reseat the graphics card.
2. Verify the graphics auxiliary power cable is connected (if applicable).
3. The problem might be on the graphics card. Contact HP for
assistance.
1. Clear CMOS.
NOTE: Refer to the Maintenance and Service Guide for the
workstation model for detailed information on clearing CMOS.
2. The problem might be on the system board. Contact HP for
assistance.
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 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 that lets you upgrade the ROM. The
executable contains contains use instructions, To download
Softpaq, visit http://www.hp.com/go/workstationsupport.
3. The system board might have a problem. Contact HP for assistance.
1. The system board might have a problem. Contact HP for assistance.
2. The CPU might have a problem. Contact HP for assistance.
Diagnostic codes and errors 167