TB486 Motherboard Settings and Configuration

Processor	80486DX
Processor Speed	33MHz
Chip Set	ETEQ
Max. Onboard DRAM	32MB
Cache	64/256KB
BIOS	AMI/MR
Dimensions	330.2mm x 218.4mm
I/O OPTIONS	32-bit external memory card slot
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Reset switch	J4	Power LED & Keylock	JP26
External battery	JP2	Speaker	JP27
32-bit external memory card	JP5	Turbo LED	T1
Turbo switch	JP25

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select monochrome	J4	Open
	Monitor type select color	J4	Closed
»	Filter circuitry disabled	JP3	Closed
	Filter circuitry enabled	JP3	Open
»	NPU read speed select 3 wait states	JP24	Open
	NPU read speed select 2 wait states	JP24	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) 1M x 9	(4) 256K x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
17MB	(4) 4M x 9	(4) 256K x 9
20MB	(4) 4M x 9	(4) 1M x 9
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0	TAG
64KB	(8) 8K x 8	(2) 8K x 8
256KB	(8) 32K x 8	(2) 8K x 8

CACHE JUMPER CONFIGURATION
Size	JP19	JP20	JP21	JP22	JP23
64KB	pins 2 & 3 closed	pins 2 & 3 closed	Open	Open	Open
256KB	pins 1 & 2 closed	pins 1 & 2 closed	Closed	Closed	Closed