HP Z228 Maintenance And Service Manual page 76

Activity
followed by a two-second
pause. Five beeps.
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.
System does not power-on
and LEDs are not blinking.
No beeps.
66 Chapter 4 Diagnostics and troubleshooting
Possible cause
1.
2.
3.
4.
Pre-video graphics error. CAUTION:
computer is off. To prevent damage, disconnect the computer power
cord before you remove a component.
1.
2.
3.
4.
System board failure 1.
(ROM detected failure
prior to video).
2.
Invalid ROM based on bad CAUTION:
checksum. computer is off. To prevent damage, disconnect the computer power
cord before you remove a component.
1.
2.
3.
System powers on but 1.
does not start.
2.
System unable to turn on. CAUTION:
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 four seconds. If the
hard drive LED turns green, then:
1.
2.
Recommended action
Reseat DIMMs.
Replace DIMMs one at a time to isolate faulty module.
Replace third-party memory with HP memory.
The problem might be on the system board. Contact HP for
assistance.
Internal components might be powered even when the
Reseat the graphics card.
Verify the graphics auxiliary power cable is connected (if
applicable).
Confirm the graphics card is in the appropriate slot (PCIe x16).
The problem might be on the graphics card. Contact HP for
assistance.
Clear CMOS.
NOTE: Refer to the Maintenance and Service Guide for the
computer model for detailed information on clearing CMOS.
The problem might be on the system board. Contact HP for
assistance.
Internal components might be powered even when the
Clear CMOS.
NOTE: Refer to the Maintenance and Service Guide for the
computer model for detailed information on clearing CMOS.
Upgrade the ROM using SoftPaq, either from the hard drive, CD,
diskette, or USB removable device (for example, HP Drive Key).
See ROM Flash on page 26. SoftPaq is a self-extracting
executable, which contains instructions for its use, that enables
you to upgrade the ROM. To download the Softpaq executable,
go to http://www.hp.com/go/workstationsupport.
The problem might be on the system board. Contact HP for
assistance.
The problem might be on the system board. Contact HP for
assistance.
The problem might be in the CPU. Contact HP for assistance.
Internal components might be powered even when the
Remove the expansion cards one at a time and try holding the
power button again for less than four seconds.
The problem might be on the system board. Contact HP for
assistance.