HP unix manual Fans, Removing the I/O Fan

Field Replaceable Units

FRU Removal and Replacement

Fans

The B2000 has three fans, which are shown in Figure 4-50: I/O fan, system fan, and processor (turbocooler) fan. A chassis code in the workstation’s LCD which indicates that a fan has failed (FLT D01n) or is running too slowly (WRN D02n) within a B2000 workstation specifies the fan number, n. Figure 4-50 notes the number (n) for each fan. For more information on identifying either a fan that has failed or one that is running too slowly, see “Fan Faults and Warnings” on page 48.

NOTE	The processor fan (5) is mounted to the processor substrate on the system
	board tray assembly. Thus, the processor fan itself is not replaceable. If the
	LCD indicates a processor fan failure (FLT D015), the entire system board
	tray assembly must be replaced. In this case, follow the procedures for
	removing and replacing the system board tray assembly starting on page 129.

Figure 4-50. Fan Locations

I/O Fan (2)

System

Fan (4)

Processor

Fan (5)

If either the I/O fan (2) or the system fan (4) fails, you will need to replace it to ensure no heat damage is caused to the workstation. To remove and replace the fan, see the following subsections for the I/O fan or the system fan, as appropriate.

Removing the I/O Fan

NOTE	The speaker is contained within the same mounting bracket as the I/O fan.
	For instructions on how to remove and replace the speaker, see page 127.

Perform the following steps to remove the I/O fan:

1.Open the left side panel of the workstation as shown in the section “Opening the Left Side Panel.”

2.Remove the PCI retainer clip and all I/O cards. See the section “Removing I/O Cards” on page 111.

124 Chapter 4