PTM-1000 (V1) Motherboard Settings and Configuration

Processor	80286
Processor Speed	10MHz
Chip Set	None
Max. Onboard DRAM	1MB
Cache	None
BIOS	DTK
Dimensions	333mm x 222mm
I/O Options	None
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker	J17	Turbo switch	J23
Power LED & keylock	J19	External battery	J24
Turbo LED	J21	Reset switch	SW2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	J2	pins 1 & 2 closed
	Monitor type select monochrome	J2	pins 2 & 3 closed
»	DRAM speed select 0 wait states	J25	Open
	DRAM speed select 1 wait state	J25	Closed
»	Base memory size select 512KB	J26	pins 1 & 2 closed
	Base memory size select 640KB	J26	pins 2 & 3 closed
Note:Base memory size select jumper (J26) is only functional when 1MB of DRAM is installed.

DRAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(18) 41256	NONE
640KB	(18) 41256	(18) 4164
1MB	(18) 41256	(18) 41256

DRAM JUMPER CONFIGURATION
Size	J18
512KB	pins 2 & 3 closed
640KB	pins 1 & 2 closed
1MB	pins 2 & 3 closed

BIOS CONFIGURATION
Size	SW1/1	SW1/2	SW1/3	SW1/4
27128	On	On	Off	Off
27256	Off	Off	On	On