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Description 13
Super I/O
The Server Board SE7500CW2 uses the Winbond W83627HF Super I/O Plug and Play Compatible
with ACPI-Compliant Controller/Extender. This device provides the system with the following:
• Two serial ports
• One parallel port
• Floppy disk controller
• PS/2-compatible keyboard and mouse controller
• Two ATA 100 IDE channels
• HW monitor controller
The Server Board SE7500CW2 provides the connector interface for the floppy disk drive, dual
serial ports, parallel port, PS/2 mouse, and PS/2 keyboard.
Serial Ports
The Server Board SE7500CW2 provides one DB9 connector on the back panel for serial port 1.
Serial port 1 is compatible with 16550A and 16450 modes. The port can be set to one of four
different COM-x ports, and each can be enabled separately. When enabled, each port can be
programmed to generate edge- or level-sensitive interrupts. When disabled, serial port interrupts
are available to add-in cards. An additional serial header is available on the board for an optional
serial port 2.
Parallel Port
The Server Board SE7500CW2 provides a 25-pin parallel port back panel connector. The Super
I/O provides an IEEE 1284–compliant 25-pin bidirectional parallel port. BIOS programming of the
Super I/O registers enables the parallel port and determines the port address and interrupt. When
disabled, the interrupt is available to add-in cards.
Floppy Port
The floppy disk connector on the server board provides the interface to the floppy disk drive from
the floppy disk controller.
Keyboard and Mouse Connectors
The separate keyboard and mouse connectors, found on the back panel of the server board, are
PS/2-compatible. The keyboard and mouse connectors are interchangeable.