Dell PowerEdge 4400 User Manual
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COM1 (input/output [I/O] address 3F8h), which shares IRQ4 with COM3, is remapped to COM3 (I/O address 3E8h).
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COM2 (I/O address 2F8h), which shares IRQ3 with COM4, is remapped to COM4 (I/O address 2E8h).
Parallel Port
Parallel Port configures the system's integrated parallel port. This option can be set to 378h (the default), to alternate addresses 278h or 3BCh,
or to Off to disable the port.
Parallel Mode
Parallel Mode controls whether the system's integrated parallel port acts as an AT-compatible (unidirectional) or PS/2-compatible (bidirectional)
port.
Set this option according to the type of peripheral device that is connected to the parallel port. To determine the correct mode to use, see the
documentation that came with the device.
Diskette
Diskette controls the operation of the system's integrated diskette drive controller.
With Auto (default) selected, the system turns off the integrated diskette drive controller when necessary to accommodate a controller card
installed in an expansion slot.
With Write Protect selected, nothing can be written to diskette drives and tape drives using the system's integrated diskette drive controller. (The
system can still read from the drives.) When this setting is selected, the Auto setting (whereby the system turns off the integrated diskette drive
controller as necessary) is also in effect.
Selecting Off turns off the integrated diskette controller; this setting is used primarily for troubleshooting purposes.
NIC
NIC determines whether the system's integrated network interface controller (NIC) is On or Off (the default). Changes take effect after reboot.
MAC Address
The MAC Address field displays the address of the media access control (MAC) address used by the integrated NIC. This field has no user-
selectable settings.
Primary SCSI and Secondary SCSI
Primary SCSI and Secondary SCSI turn the respective SCSI controller on or off. Selecting On (the default setting) enables the integrated PCI
SCSI controller and scans the associated ROM. For the system to boot from a drive attached to the integrated SCSI controller, the drive must be
enabled. Selecting Off causes the BIOS to mask the presence of a device.
Onboard RAID
When ROMB is detected, selections are RAID, SCSI, and Off
. When Onboard RAID is set to RAID, Channel A displays RAID and Channel B
can be set to RAID or SCSI. When Onboard RAID is set to SCSI or Off, Channel A and Channel B display SCSI
.
NOTICE: To avoid possible data loss, back up all data on the hard-disk drives before changing the mode of operation of the
integrated SCSI controller.
Channel A
Channel A displays the selections RAID or SCSI
. When RAID is displayed, this channel supports RAID functionality. When SCSI is displayed, it
functions as a SCSI channel.
Channel B
Channel B will display the selections RAID or SCSI. When RAID
is displayed, this channel supports RAID functionality. When SCSI is displayed,
it functions as a SCSI channel.
System Data Categories
The following categories, which are not selectable, display information about the system:
NOTE: When two COM ports share an IRQ setting, you can use either port as necessary, but you may not be able to use them both at
the same time. If the second port (COM3 or COM4) is also in use, the integrated port is turned off.
NOTE: Do not set Parallel Port to 278h if you have an Enhanced Capabilities Port (ECP) device connected to the port.