J-MARK COMPUTER CORPORATION

386DX 25/40 NON CACHE

Processor	80386DX
Processor Speed	25/40MHz
Chip Set	CGS
Max. Onboard DRAM	32MB
Cache	None
BIOS	AMI
Dimensions	220mm x 220mm
I/O Options	None
NPU Options	80387DX/3167

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	JP2	Reset switch	JP9
Speaker	JP7	Turbo switch	JP10
Power LED & keylock	JP8	Turbo LED	JP11

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CMOS memory normal operation	JP3	pins 1 & 2 closed
	CMOS memory clear	JP3	pins 2 & 3 closed
»	NPU synchronous with CPU	JP5	Open
	NPU asynchronous with CPU	JP5	Closed
»	Monitor type select color	JP6	Closed
	Monitor type select monochrome	JP6	Open
»	Turbo switch enabled	JP10	Closed
	Turbo switch disabled	JP10	Open

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
5MB	(4) 256K x 9	(4) 1M x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
17MB	(4) 256K x 9	(4) 4M x 9
17MB	(4) 4M x 9	(4) 256K x 9
20MB	(4) 4M x 9	(4) 1M x 9
20MB	(4) 1M x 9	(4) 4M x 9
32MB	(4) 4M x 9	(4) 4M x 9

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386DX 25/40 NON CACHE, motherboard, processor, socket, pentium, pentium pro, celeron, powerpc, alpha, 8088, 8086, 286, 386, 486, configuration, RAM, DRAM, floppy, jumper, connections