DTC2X77VL Hard Disk/Floppy Controller Settings and Configuration

Data Bus	32-bit VESA Local Bus
Card Size	Three-quarter length, full-height card
Hard Drives supported	Four IDE (AT) drives
Floppy drives supported	Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS
Function	Location	Function	Location
40-pin primary IDE(AT) connector	JP1	34-pin cable connector - floppy drive	JP3
40-pin secondary IDE(AT) connector	JP2	Connector - drive active LED	JP1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Floppy drive interface enabled	JP2/4	Closed
	Floppy drive interface disabled	JP2/4	Open
»	Hard drive primary I/O address select	JP2/5	Closed
	Hard drive secondary I/O address select	JP2/5	Open
»	Factory configured - do not alter	JP2/6	Closed

BIOS ADDRESS SELECTION
Address		JP2/pins 1 & 2	JP2/pins 3 & 4	JP2/pins 5 & 6
	C8000h-CBFFFh	Closed	Open	Open
	CC000h-CEFFEh	Open	Closed	Open
	D0000h-D3FFEh	Closed	Closed	Open
	D4000h-D7EEEh	Open	Open	Closed
	D8000h-DBFFFh	Closed	Open	Closed
»	DC000h-DEFFFh	Closed	Closed	Closed
	Disabled	Open	Open	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(2) 256 x 9	None
1KB	(2) 256 x 9	(2) 256 x 9
1.5KB	(2) 256 x 9	(2) 1MB x 9
2MB	(2) 1MB x 9	None
2.5MB	(2) 1MB x 9	(2) 256 x 9
4MB	(2) 1MB x 9	(2) 1MB x 9
8MB	(2) 4MB x 9	None
8.5MB	(2) 4MB x 9	(2) 256 x 9
8.5MB	(2) 256 x 9	(2) 4MB x 9
10MB	(2) 1MB x 9	(2) 4MB x 9
10MB	(2) 4MB x 9	(2) 1MB x 9
16MB	(2) 4MB x 9	(2) 4MB x 9