B237 Hard Disk/Floppy Controller Settings and Configuration

Data bus:	16-bit, ISA
Size:	Half-length, full-height card
Hard drive supported:	Two IDE (AT) Interface drives
Floppy drives supported:	Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS
Function	Location
25-pin parallel port (LPT1/2) - external	CN1
15-pin game port - external	CN2
10-pin serial port (COM1/3) - internal	CN3
10-pin serial port (COM2/4) - internal	CN4
34-pin control cable connector - floppy drive	CN5
40-pin IDE (AT) Interface connector	CN6
4-pin connector - drive active LED	CN7

PARALLEL PORT ADDRESS
Setting	JP3	JP4
3BCh	pins 2 & 3 closed	pins 1 & 2 closed
378h	pins 1 & 3 closed	pins 1 & 2 closed
278h	pins 1 & 2 closed	pins 2 & 3 closed
Disable	pins 2 & 3 closed	pins 2 & 3 closed

SERIAL PORTS COM SELECT
Serial 1	Serial 2	JP5	JP6	JP7
COM1	COM2	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
COM2	COM1	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed

FLOPPY DRIVE SELECT
Setting	JP8	JP9
Enabled	pins 1 & 2 closed	pins 1 & 2 closed
Disabled	pins 2 & 3 closed	pins 2 & 3 closed