DT-LB134 (36-BIT SIMM VERSION) Motherboard Settings and Configuration

Processor	80386DX/CX486DLC/80486SX/80486DX/80486DX2/ODP586SX
Processor Speed	20/25/33/40/50(internal)/50/66(internal)MHz
Chip Set	Symphony
Max. Onboard DRAM	64MB
SRAM Cache	64/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	PS/2 mouse, 32-bit VESA local bus slot
NPU Options	CX87DLC/80387DX

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo LED	J1/pins 1 & 2	Speaker	J2B/pins 1 & 4
Turbo switch	J1/pins 3 & 4	Mouse port header	J11A
Reset switch	J1/pins 5 & 6	PS/2 mouse port	J11B
Power LED & keylock	J2A	32-bit VESA local bus	S1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
	Factory configured-do not alter	E2/pins 1 & 2	unknown
	Factory configured-do not alter	E2/pins 3 & 4	unknown
»	Monitor type select color	E2/pins 5 & 6	closed
	Monitor type select monochrome	E2/pins 5 & 6	open
	ATCLK iOSC/2	E7/1-3, 4-6	closed
	ATCLK iOSC/1	E7/3-5, 2-4	closed
»	Mouse port enabled	E12	closed
	Mouse port disabled	E12	open
»	CMOS memory normal operation	E13	open
	CMOS memory clear	E13	closed
»	Onboard speaker enabled	J2B/pins 1 & 2	closed
	Onboard speaker disabled	J2B/pins 1 & 2	open
	Burst mode 3-2-2-2	JP1	closed
	Burst mode 2-1-1-1	JP1	open
	Cache wait state select 0 wait states	JP2	closed
	Cache wait state select 1 wait state	JP2	open

SRAM JUMPER CONFIGURATION
Jumper	64K	256K
E1A	pins 2 & 3 closed	pins 1 & 2 closed
E1B	pins 2 & 3 closed	pins 1 & 2 closed
E1C	open	closed
E1D	open	closed
E1E	open	closed
E1F	pins 1 & 2 closed	pins 1 & 2 closed
E1G	pins 1 & 2 closed	pins 1 & 2 closed
E1H	pins 1 & 2 closed	pins 1 & 2 closed
E1I	pins 1 & 2 closed	pins 1 & 2 closed
E1J	closed	closed
E1K	closed	closed

SRAM CONFIGURATION
Size	Cache	TAG
64KB	(8) 8K x 8	(1) 8K x 4
256KB	(8) 32K x 8	(1) 32K x 4

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank3
1MB	256K x 36	NONE	NONE	NONE
2MB	256K x 36	256K x 36	NONE	NONE
3MB	256K x 36	256K x 36	256K x 36	NONE
4MB	256K x 36	256K x 36	256K x 36	256K x 36
4MB	1MB x 36	NONE	NONE	NONE
5MB	1MB x 36	256K x 36	NONE	NONE
7MB	1MB x 36	256K x 36	256K x 36	256K x 36
8MB	1MB x 36	1MB x 36	NONE	NONE
9MB	1MB x 36	1MB x 36	256K x 36	NONE
10MB	1MB x 36	1MB x 36	256K x 36	256K x 36
12MB	1MB x 36	1MB x 36	1MB x 36	NONE
16MB	1MB x 36	1MB x 36	1MB x 36	1MB x 36
16MB	4MB x 36	NONE	NONE	NONE
17MB	4MB x 36	256K x 36	NONE	NONE
19MB	4MB x 36	256K x 36	256K x 36	256K x 36
20MB	4MB x 36	1MB x 36	NONE	NONE
28MB	4MB x 36	1MB x 36	1MB x 36	1MB x 36
32MB	4MB x 36	4MB x 36	NONE	NONE
34MB	4MB x 36	4MB x 36	256K x 36	256K x 36
40MB	4MB x 36	4MB x 36	1MB x 36	1MB x 36
64MB	4MB x 36	4MB x 36	4MB x 36	4MB x 36

CPU TYPE CONFIGURATION
Type	E3	E4	E5	E6	E7	E8
80386DX 33	open	3&4,9&10	1&3,4&6	3&4,9&11,10&12,	1&3,4&6	3&4
80386DX 40	open	3&4,7&8,9&10	1&3,4&6	3&4,9&11,10&12	1&3,4&6	5&6
CX486DLC 33	open	3&4,9&10	1&3,4&6	3&4,9&11,10&12	1&3,4&6	3&4
CX486DLC 40	open	3&4,7&8,9&10	1&3,4&6	3&4,9&11,10&12	1&3,4&6	5&6
80486SX 20	2&3	1&2,9&10	3&5,4&6	1&2,5&6,7&9,8&10	1&3,4&6	1&2
80486SX 25	2&3	1&2,9&10	3&5,4&6	1&2,5&6,7&9,8&10	1&3,4&6	3&4,5&6
80486SX 33	2&3	1&2,9&10	3&5,4&6	1&2,5&6,7&9,8&10	1&3,4&6	3&4
80486DX 33	1&2,3&4,5&6	1&2,9&10	3&5,4&6	1&2,5&6,7&9,8&10	1&3,4&6	3&4
80486DX2 50	1&2,3&4,5&6	1&2,9&10	3&5,4&6	1&2,5&6,7&9,8&10	1&3,4&6	3&4,5&6
80486DX 50	1&2,3&4,5&6	1&2,5&6,7&8,9&10	1&3,2&4	1&2,5&6,7&9,8&10	3&5,2&4	3&4,5&6
80486DX2 66	1&2,3&4,5&6	1&2,9&10	3&5,4&6	1&2,5&6,7&9,8&10	1&3,4&6	3&4
Notes: Pins indicated should be in the closed position. Early versions of the board (model DT-LB133) do not support the 80486 series processor.