HP j6700 Getting Started Manual page 71

Table 3-9
1
LED Name
FANS
SHORT
1. The LEDs are in the OFF state, or in the case of the FANS LED, the LED is blinking
sequence 1, 2, or 6 or it is not blinking.
Solutions for the Non-Default LED States
Non-Default
State
OFF or blink If the following solutions do not bring the LED back on or
sequence 4, 5 cause it to properly blink, replace the system board.
or 6
OFF
Blink Sequence 4 Unplug the system and operate the unit
Blink Sequence 5 Replace the fan associated with the
Blink Sequence 6 Check that the 24-pin power supply signal
ON If the following solutions do not turn this LED off, replace the
system board.
• Check that no pieces of metal are shorting connections
anywhere in the system
• Check that no pins on system connectors are bent and
touching each other
Chapter 3
Using the System Board LEDs for Troubleshooting
Solution
Unplug the system and replace the system
board
when its environment gets cooler
message in your system LCD. If power
supply fans are bad, you have to replace
the power supply. If the PCI fan is bad,
replace it. If either one of the processor
fans are bad, you must replace the system
board. Note, fans may still be spinning, but
their control signal may have failed.
cable is properly connected
Press the power button off and unplug the
system and wait for two minutes before
turning the system back on
Troubleshooting Your System
71