OEM1/L-ISA Motherboard Settings and Configuration

Processor	80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed	16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set	Advanced
Max. Onboard DRAM	128MB
Cache	64/128/256KB
BIOS	AMI
Dimensions	254mm x 218mm
I/O Options	32-bit local bus slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo switch	H1	Power LED & keylock	H5
Turbo LED	H2	External battery	JP1
Reset switch	H3	32-bit local bus slot	S1
Speaker	H4

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP12	Open
	Monitor type select monochrome	JP12	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
5MB	(4) 256K x 9	(4) 1M x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
20MB	(4) 1M x 9	(4) 4M x 9
32MB	(4) 4M x 9	(4) 4M x 9
64MB	(4) 16M x 9	NONE
80MB	(4) 16M x 9	(4) 4M x 9
128MB	(4) 16M x 9	(4) 16M x 9

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG (U34)
64KB	(4) 8K x 8	(4) 8K x 8	(1) 8K x 8
128KB	(4) 32K x 8	NONE	(1) 8K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP2	JP3
64KB	Open	Open
128KB	pins 2 & 3 closed	Closed
256KB	pins 1 & 2 closed	Closed

CPU JUMPER CONFIGURATION
Type	J4	J5	J7	J8
80486SX	pins 2 & 3 closed	Open	Closed	Open
ODP486SX	pins 1 & 2, 3 & 4 closed	pins 1 & 2 closed	Closed	Open
80487SX	pins 1 & 2, 3 & 4 closed	pins 1 & 2 closed	Closed	Open
80486DX	pins 1 & 2, 3 & 4 closed	pins 1 & 2 closed	Closed	Open
80486DX2	pins 1 & 2, 3 & 4 closed	pins 1 & 2 closed	Closed	Open