User`s guide

Chapter 1 Hardware Installation

Step 9 Connect I/O

Onboard Adapters The MegaRUM II PCI motherboard has:

• two serial ports (J6 and J7),

• a parallel port (J5),

• two Ultra Wide SCSI connectors,

• an IDE controller on the PCI bus (the primary IDE

connector is JP5 and the secondary IDE connector is

JP4), and

• a floppy controller (JP9).

The serial and parallel port connectors are described

below.

Conflicts AMIBIOS minimizes conflicts between onboard and

offboard I/O devices.

AMIBIOS automatically checks the adapter cards

installed in the expansion slots on the MegaRUM II PCI

motherboard for a hard disk or floppy controller and serial

or parallel ports.

J6 SER1 J7 SER2 J6 and J7 are 9-pin connectors that provide an AT-

compatible serial port interface. Connect the cables

supplied with the motherboard to J6 and J7. The serial

port base I/O port address and other serial port settings

can be selected in Peripheral Setup in AMIBIOS® Setup.

The J6 and J7 pinout is shown below.

Pin Signal Description Pin Signal Description

1 Carrier Detect 6 Data Set Ready

2 Receive Data 7 Request to Send

3 Transmit Data 8 Clear to Send

4 Data Terminal

Ready

9 Ring Indicator

5 Ground 10 CUT PIN

Cont’d