Specifications

Table 6-7 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 computer is off. To prevent damage, disconnect the computer
power cord before you remove a component.
1. Clear CMOS.
NOTE: Refer to the Maintenance and Service Guide for
the computer 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
times, once every second,
followed by a two-second
pause. Nine beeps.
System powers on but
does not start.
1. The problem might be on the system board. Contact HP for
assistance.
2. The problem might be in the CPU. Contact HP for assistance.
System does not power-on
and LEDs are not blinking.
No beeps.
System unable to power
on.
CAUTION: Internal components might be powered even when
the computer is off. To prevent damage, disconnect the computer
power cord before you remove a component.
To resolve the problem, choose one of the following options:
Press and hold the power button for less than 4 seconds. If the
hard disk 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. The problem might be on the system board. Contact HP for
assistance.
Press and hold the power button for less than 4 seconds. If the
hard disk drive LED does not turn on green then:
1. Check that unit is plugged into a working AC outlet.
2. Open the access panel and check that the power button
harness is properly connected to the system board.
3. Check that all power supply cables are properly connected
to the system board.
*
The BIOS option you select controls the blue LED function during these suspend modes.
ENWW
Diagnostic codes and errors
155