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Fan Problems

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Troubleshooting Fan Problems Fan Problems A chassis code which indicates that a fan has failed (FLT D01n) or is running too slowly (WRN D02n) within a J5xxx or J7xxx workstation specifies the fan number, n. Table 3-2 maps these fan numbers to the physical locations of the fans within each workstation. Table 3-2. Fan Numbers and Locations within the J5xxx and J7xxx Workstation Fan # (n) 1 2 3 4 5 6 7 8 9 A B J5xxx J7xxx (Not used) System board fan, top System board fan, middle System board fan, bottom Turbocooler fan, left Turbocooler fan, right (Not used) (Not used) I/O cooling fan Power supply fan, top Power supply fan, bottom (Not used) System board cooling fan, top System board cooling fan, middle System board cooling fan, bottom Turbocooler fan, top Turbocooler fan, second down from top Turbocooler fan, third down from top Turbocooler fan, bottom I/O cooling fan Power supply fan, top Power supply fan, bottom In the case of a fan problem, you will need to replace: • The fan itself, if it is either a system board cooling fan or an I/O cooling fan • The entire system board tray assembly, if it is a turbocooler fan (that is, a fan mounted on a PA-RISC microprocessor on the system board) • The power supply, if it is a power supply fan See Chapter 4 for the procedures you should follow to remove and replace these components. 80 Chapter 3

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80
Chapter 3
Troubleshooting
Fan Problems
Fan Problems
A chassis code which indicates that a fan has failed (
FLT D01
n
) or is running too slowly
(
WRN D02
n
) within a J5xxx or J7xxx workstation specifies the fan number,
n
. Table 3-2
maps these fan numbers to the physical locations of the fans within each workstation.
In the case of a fan problem, you will need to replace:
The fan itself, if it is either a system board cooling fan or an I/O cooling fan
The entire system board tray assembly, if it is a turbocooler fan (that is, a fan mounted
on a PA-RISC microprocessor on the system board)
The power supply, if it is a power supply fan
See Chapter 4 for the procedures you should follow to remove and replace these
components.
Table 3-2. Fan Numbers and Locations within the J5xxx and J7xxx Workstation
Fan # (
n
)
J5xxx
J7xxx
1
(Not used)
(Not used)
2
System board fan, top
System board cooling fan, top
3
System board fan, middle
System board cooling fan, middle
4
System board fan, bottom
System board cooling fan, bottom
5
Turbocooler fan, left
Turbocooler fan, top
6
Turbocooler fan, right
Turbocooler fan, second down from top
7
(Not used)
Turbocooler fan, third down from top
8
(Not used)
Turbocooler fan, bottom
9
I/O cooling fan
I/O cooling fan
A
Power supply fan, top
Power supply fan, top
B
Power supply fan, bottom
Power supply fan, bottom