A-B345G/A-B345H Motherboard Settings and Configuration

Processor	80386DX
Processor Speed	40MHz
Chip Set	OPTi
Max. Onboard DRAM	32MB
SRAM Cache	64/128/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	80387

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Turbo LED	JP12
Power LED & keylock	J18	Turbo switch	JP11
Speaker	J19	Reset switch	SW1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	ISA bus clock iOSC/4 (10MHz)	JP2	closed
	ISA bus clock iOSC/5 (8MHz)	JP2	open
»	CMOS memory normal operation	J3	pins 2 & 3 closed
	CMOS memory clear	J3	pins 1 & 2 closed
»	Monitor type select color	J4	closed
	Monitor type select monochrome	J4	open

SRAM JUMPER CONFIGURATION
Size	JP6	JP8	JP9	JP10	JP17	JP18
64KB	open	open	open	pins 2 & 3	open	open
128KB	closed	closed	open	pins 1 & 2	open	closed
256KB	closed	closed	closed	pins 2 & 3	closed	closed

SRAM CONFIGURATION
Size	Cache	Location	TAG
64KB	(8) 8K x 8	Banks 0 & 1	(1) 8K x 8
128KB	(4) 32K x 8	Bank 0	(1) 8K x 8
256KB	(8) 32K x 8	Banks 0 & 1	(1) 32K x 8

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
20MB	(4) 4M x 9	(4) 1M x 9
32MB	(4) 4M x 9	(4) 4M x 9