Processor	80386DX
Processor Speed	25/33MHz
Chip Set	Unidentified
Max. Onboard DRAM	32MB
Cache	16/32/64/128KB
BIOS	AMI/Award/Mylex/Phoenix
Dimensions	305mm x 330mm
I/O Options	32-bit Intel slots (2), 32-bit external memory card
NPU Options	80287/80387DX/3167

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	BAT	Power LED & keylock	J17
Turbo switch	J6	Reset switch	J18
Single-step control switch	J10	32-bit Intel slots	SL1 & SL2
Speaker connector	J14	32-bit external memory card	SL3
Turbo LED	J16

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
	I/O bus speed select 1 wait states	J1	Closed
	I/O bus speed select 2 wait states	J1	Open
»	Factory configured - do not alter	J2	Closed
»	Monitor type select monochrome	J3	pins 1 & 2 closed
	Monitor type select color	J3	pins 2 & 3 closed
»	AT bus DRAM refresh signal disabled	J4	Closed
	AT bus DRAM refresh signal enabled	J4	Open
»	80386 <Rev. D NPU interface bug bypass disabled	J5	Open
	80386 <Rev. D NPU interface bug bypass enabled	J5	Closed
»	Turbo mode enabled	J6	Open
	Turbo mode disabled	J6	Closed
»	Cache enabled	J9	Open
	Cache disabled	J9	Closed
»	Factory configured - do not alter	J11	N/A
»	Factory configured - do not alter	J13	pins 1 & 2 closed
»	Factory configured - do not alter	J15	pins 1 & 2 closed
»	Factory configured - do not alter	J22	N/A
»	Factory configured - do not alter	J23	Closed
»	Factory configured - do not alter	J26	N/A
»	Factory configured - do not alter	J27	Closed
»	Memory access on Intel 32-bit bus cached	J28	Closed
	Memory access on Intel 32-bit bus cached	J28	Open
»	ROM address select 0F0000 and FF0000	J30	Open
	ROM address select 0F0000	J30	Closed
»	Factory configured - do not alter	J33	N/A
»	NPU type select 80387	J34	Closed
	NPU type select 80287	J34	Open
»	NPU synchronous with CPU	J35	Open
	NPU asynchronous with CPU	J35	Closed
»	Factory configured - do not alter	J37	pins 1 & 2 closed
»	Factory configured - do not alter	J38	N/A
»	80387 reset normal	J40	Open
	80387 reset on port F1h	J40	Closed

USER CONFIGURABLE SETTINGS (CON’T)
Function		Jumper/Switch	Position
»	ROM caching disabled	J41	Open
	ROM caching enabled	J41	Closed
»	Single step mode disabled	J42	pins 2 & 3 closed
	Single step mode enabled	J42	pins 1 & 2 closed
»	Factory configured - do not alter	J43	N/A
»	BIOS speed select 250ns	J44	pins 3 & 4 closed
	BIOS speed select 200ns	J44	pins 1 & 2 closed
	BIOS speed select 200ns for 25MHz machine	J44	Open
	BIOS speed select 150ns for 33MHz machine	J44	Open
»	Factory configured - do not alter	J46	N/A
»	Factory configured - do not alter	J47	N/A
»	Factory configured - do not alter	J48	N/A
»	Factory configured - do not alter	J49	N/A
»	Factory configured - do not alter	J50	N/A
»	Intel NPU not installed	SW0/1	On
	Intel NPU installed	SW0/1	Off
»	No ISA bus card installed w/memory between 12 and 14MB	SW0/2	On
	ISA bus card installed with memory between 12 and 14MB	SW0/2	Off
	ROM shadowing disabled	SW0/8	On
	ROM shadowing enabled	SW0/8	Off
»	Factory configured - do not alter	SW0/9	N/A
»	Factory configured - do not alter	SW0/10	N/A

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
16KB	(8) 4K x 4	NONE	(>1) 4K x 4
32KB 1	(8) 4K x 4	(8) 4K x 4	(>1) 16K x 4
32KB 2	(8) 8K x 4	NONE	(>1) 16K x 4
64KB	(8) 16K x 4	NONE	(>1) 16K x 4
128KB	(8) 16K x 4	(8) 16K x 4	(>1) 16K x 4
Note: The exact location and number of tag chips is unidentified.

CACHE JUMPER CONFIGURATION
Size	J7	J8	J12	J29	J31
16KB	pins 5 & 6 closed	pins 3 & 4 closed	pins 5 & 6 closed	Open	pins 1 & 2 closed
32KB 1	pins 5 & 6 closed	pins 5 & 6 closed	pins 5 & 6 closed	Closed	pins 5 & 6 closed
32KB 2	pins 5 & 6 closed	pins 5 & 6 closed	pins 5 & 6 closed	Open	pins 1 & 2 closed
64KB	pins 5 & 6 closed	pins 5 & 6 closed	pins 3 & 4 closed	Open	pins 1 & 2 closed
128KB	pins 3 & 4 closed	pins 5 & 6 closed	pins 3 & 4 closed	Closed	pins 3 & 4 closed

CACHE JUMPER CONFIGURATION (CON’T)
Size	J36	J39	J51	J52
16KB	pins 2 & 3 closed	pins 5 & 6 closed	pins 2 & 3 closed	pins 2 & 3 closed
32KB 1	pins 2 & 3 closed	pins 7 & 8 closed	pins 2 & 3 closed	pins 2 & 3 closed
32KB 2	pins 2 & 3 closed	pins 5 & 6 closed	pins 2 & 3 closed	pins 2 & 3 closed
64KB	pins 1 & 2 closed	pins 5 & 6 closed	pins 1 & 2 closed	pins 1 & 2 closed
128KB	pins 1 & 2 closed	pins 3 & 4 closed	pins 1 & 2 closed	pins 1 & 2 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
32MB	(4) 4M x 9	(4) 4M x 9

DRAM SWITCH CONFIGURATION
Size	EMS Size	SW1/1	SW1/2	SW1/3	SW1/4
1MB	NONE	On	On	On	On
1MB	0.375MB	Off	On	On	On
2MB	1MB	On	On	Off	On
2MB	1.375MB	Off	On	Off	On
4MB	3MB	On	On	Off	Off
4MB	3.375MB	Off	On	Off	Off
8MB	7MB	Off	On	Off	Off
8MB	7.375MB	On	Off	On	On
16MB	13MB	On	Off	On	Off
16MB	14.875MB	On	Off	Off	On
32MB	30.875MB	On	Off	Off	Off

DRAM SPEED CONFIGURATION
CPU Speed	DRAM Speed	J25	SW0/5	SW0/6	SW0/7
25MHz	80ns	pins 1 & 2 closed	On	On	On
25MHz	100ns	pins 3 & 4 closed	Off	Off	Off
33MHz	60ns	pins 1 & 2 closed	On	On	On
33MHz	80ns	pins 3 & 4 closed	Off	Off	Off

BIOS TYPE CONFIGURATION
» Type		J21	J24
»	27256	pins 1 & 2 closed	pins 2 & 3 closed
»	27128	pins 1 & 2 closed	pins 1 & 2 closed
»	27512	pins 2 & 3 closed	pins 2 & 3 closed

CACHEABLE AREA SELECTION
Cacheable RAM	Min. cache size	SW0/2	SW0/3	SW0/4
32MB	128KB	N/A	Off	Off
16MB	64KB	N/A	On	Off
14MB	128KB	Off	Off	On
8MB	128KB	On	Off	On
4MB	N/A	N/A	On	On

DRAM/CACHE MODE CONFIGURATION
DRAM size	Interleave	Cache size	J19	J20	J1/M	J2/M
1MB	No	Any	Open	2 & 3	1 & 2	1 & 2
2MB	No	Any	3 & 4	Open	1 & 2	1 & 2
2MB	Yes	16KB	Open	1 & 2	1 & 2	3 & 4
2MB	Yes	32KB 1	1 & 2	Open	3 & 4	1 & 2
2MB	Yes	32KB 2	Open	1 & 2	1 & 2	3 & 4
2MB	Yes	64KB	Open	1 & 2	1 & 2	3 & 4
2MB	Yes	128KB	1 & 2	Open	3 & 4	1 & 2
4MB	No	Any	Open	2 & 3	1 & 2	1 & 2
8MB	No	Any	5 & 6	Open	1 & 2	1 & 2
8MB	Yes	16KB	Open	1 & 2	1 & 2	5 & 6
8MB	Yes	32KB 1	1 & 2	Open	5 & 6	1 & 2
8MB	Yes	32KB 2	Open	1 & 2	1 & 2	5 & 6
8MB	Yes	64KB	Open	1 & 2	1 & 2	5 & 6
8MB	Yes	128KB	1 & 2	Open	5 & 6	1 & 2
16MB	No	Any	Open	2 & 3	1 & 2	1 & 2
32MB	No	Any	7 & 8	Open	1 & 2	1 & 2
32MB	Yes	16KB	Open	1 & 2	1 & 2	7 & 8
32MB	Yes	32KB 1	1 & 2	Open	7 & 8	1 & 2
32MB	Yes	32KB 2	Open	1 & 2	1 & 2	7 & 8
32MB	Yes	64KB	Open	1 & 2	1 & 2	7 & 8
32MB	Yes	128KB	1 & 2	Open	7 & 8	1 & 2
Note: Pins designated should be in the closed position.