HP zx2000 Setup And Troubleshooting Manual page 40

Table 4-13 Diagnostic Lights and Audible Codes
Activity
NOTE: For the following LED activity and beeps, the beeps will be heard through the on–board speaker and not the
chassis speaker. Blinks and beeps will be repeated for 5 cycles, after that, only the blinks will continue to repeat.
Red Power LED blinks eight
times, once every second,
followed by a two-second
pause.
Red Power LED blinks nine
times, once every second,
followed by a two-second
pause.
System does not power on
and LEDs are not blinking.
32 Troubleshooting
Beeps Possible Cause
8 Invalid ROM based on bad
checksum.
9 System powers on but does not
boot.
None System unable to power on.
Recommended Action
1. Reflash the ROM using a
ROMPaq diskette. See the "ROM
Flash" section of the Service and
Technical Reference Guide web
link located on the
Documentation and Diagnostic
CD
www.hp.com/support/
workstation_manuals
2. Replace the system board.
Press and hold the power button for
less than 4 seconds. If the hard drive
LED turns green, then:
1. Remove the expansion cards one
at a time and try holding the
power button again for less than
4 seconds.
2. Replace the system board.
OR
Press and hold the power button for
less than 4 seconds. If the hard drive
LED does not turn on green then:
1. Check that unit is plugged into a
working AC outlet.
2. Open hood and check that the
power button harness is properly
connected to the system board.
3. Check that both power supply
cables are properly connected to
the system board.
4. Check the Power Supply Built-In-
Self-Test (BIST) LED located inside
the power supply (look directly at
the rear of the chassis).
5. Replace the system board.
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