HP Workstation x4000 hp workstation x4000 - Technical Reference manual - Windo - Page 217

Table 11-1, Diag LED Patterns, Pattern, Description, Possible Solutions

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Troubleshooting Understanding the Diag LEDs Table 11-1 Diag LED Patterns (R = Red, Y = Yellow, G = Green, q = Off) Pattern YYqR YqRY YqqR GRqq Description The PCI fan is not functioning. This fan is located at the front of the Workstation. The sensor reads the state of the fan that is connected to the "PCI fan" power connector on the system board, regardless of which fan is connected. There is an error in the 3.3V standby power circuit on the system board. The turbo cooler fan for processor 0 is not functioning. BIOS Boot Block Recovery is complete. Possible Solutionsa 1. Reseat the fan's power cable to the system board. 2. Verify that the cabel leads to the PCI fan and replace the fan as show in the "Fan and Speaker Assembly" on page 194. 3. If you cannot verify that the cabel leads to the PCI fan, replace both the PCI and hard disk drive fans as described in "Fan and Speaker Assembly" on page 194 and "Hard Disk Drive Fan" on page 197 Replace the system board as described in "System Board" on page 186. 1. Reseat the fan's power cable to the system board. 2. Replace the turbo cooler as described in "Processor" on page 177. 3. Replace the system board as described in "System Board" on page 186. 1. If you have previously set system switch 2 on the system board to ON, turn off the Workstation and set the switch to OFF. Restart the Workstation. 2. Replace the system board as described in "System Board" on page 186. Chapter 11 217

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Troubleshooting
Understanding the Diag LEDs
Chapter 11
217
YY
●
R
The PCI fan is not functioning. This
fan is located at the front of the
Workstation.
The sensor reads the state of the fan
that is connected to the “PCI fan”
power connector on the system board,
regardless of which fan is connected.
1.
Reseat the fan’s power cable to the
system board.
2.
Verify that the cabel leads to the
PCI fan and replace the fan as
show in the “Fan and Speaker
Assembly” on page 194.
3.
If you cannot verify that the cabel
leads to the PCI fan, replace both
the PCI and hard disk drive fans as
described in “Fan and Speaker
Assembly” on page 194 and “Hard
Disk Drive Fan” on page 197
Y
●
RY
There is an error in the 3.3V standby
power circuit on the system board.
Replace the system board as described
in “System Board” on page 186.
Y
●●
R
The turbo cooler fan for processor 0 is
not functioning.
1.
Reseat the fan’s power cable to the
system board.
2.
Replace the turbo cooler as
described in “Processor” on page
177.
3.
Replace the system board as
described in “System Board” on
page 186.
GR
●●
BIOS Boot Block Recovery is
complete.
1.
If you have previously set system
switch 2 on the system board to
ON
,
turn off the Workstation and set
the switch to
OFF
. Restart the
Workstation.
2.
Replace the system board as
described in “System Board” on
page 186.
Table 11-1
Diag LED Patterns
(R = Red, Y = Yellow, G = Green,
●
= Off)
Pattern
Description
Possible Solutions
a