Dell PowerEdge 4300 Installation And Troubleshooting Manual page 105

PWR1 To POWER1 connector on system board
PWR2 To POWER2 connector on system board
PWR3 Not used
FD To diskette drives and other devices in external drive bays
HD_B/P To POWER connector on SCSI backplane board
NOTE: For the full name of an abbreviation or acronym used in this table, see the abbreviations and
acronyms list that precedes the Index.
A total of five cooling fans are installed in the Dell PowerEdge 4300 system chassis;
two fans are located at the front of the system board tray, and three fans are mounted
in a removable assembly adjacent to the hard-disk drive bays.
The three-fan assembly for the hard-disk drives is hot-pluggable; that is, you can
remove the entire three-fan assembly and replace it with another three-fan assembly
while the system is running. If you wish to replace the individual fans in the assembly,
you must turn off the system before removing the fan assembly to prevent system
overheating while the fan is replaced.
On the two-fan assembly for the system board, you can hot-plug the individual fans,
but only a single fan at a time. Because the fans in the two-fan assembly can be
removed and replaced without removing the assembly from the system, you can
replace either fan while the system is running. However, if you need to remove the
two-fan assembly, you must turn off the system before doing so.
If the Dell OpenManage HIP server management application program issues a fan-
related error message, follow these steps to troubleshoot the problem.
NOTE: You can perform the following procedure with the system turned on or off.
Checking Inside the Computer 7-17