PREFERRED 486 MGE/VL Motherboard Settings and Configuration

Processor	80486DX/80486DX2/Pentium Overdrive
Processor Speed	25/33/50(internal)/50/66(internal)MHz
Chip Set	SIS
Max. Onboard DRAM	256MB (128MB on CPU module)
Cache	512KB (on CPU module)
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	CPU module slot, 32-bit VESA local bus slots (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Speaker	J4	Reset/Turbo switch	J41
Power LED & keylock	J5	32-bit VESA Local bus slots	SL1 & SL2
Equipment panel connector	J39	CPU module slot	SL3
IDE interface LED	J40

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select monochrome	JP9	Closed
	Monitor type select color	JP9	Open
»	Factory configured - do not alter	JP30	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
4MB	(4) 1M x 9	NONE	NONE	NONE
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE
12MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	NONE
16MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE	NONE	NONE
20MB	(4) 1M x 9	(4) 4M x 9	NONE	NONE
24MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	NONE
24MB	(4) 1M x 9	(4) 4M x 9	(4) 1M x 9	NONE
28MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	(4) 1M x 9
28MB	(4) 1M x 9	(4) 4M x 9	(4) 1M x 9	(4) 1M x 9
32MB	(4) 4M x 9	(4) 4M x 9	NONE	NONE
36MB	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9	NONE
36MB	(4) 4M x 9	(4) 4M x 9	(4) 1M x 9	NONE
40MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9
40MB	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9	(4) 1M x 9
40MB	(4) 4M x 9	(4) 4M x 9	(4) 1M x 9	(4) 1M x 9
48MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	NONE
52MB	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9
52MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	(4) 1M x 9
64MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9
64MB	(4) 16M x 9	NONE	NONE	NONE
128MB	(4) 16M x 9	(4) 16M x 9	NONE	NONE
196MB	(4) 16M x 9	(4) 16M x 9	(4) 16M x 9	NONE
256MB	(4) 16M x 9	(4) 16M x 9	(4) 16M x 9	(4) 16M x 9
Note: Banks 2 & 3 are located on the CPU module board.

CPU SPEED CONFIGURATION
Speed	JP1	JP6	JP7
25MHz	pins 1 & 2 closed	Open	Open
33MHz	pins 1 & 2 closed	Open	Closed
50iMHz	pins 1 & 2 closed	Closed	Closed
66iMHz	pins 1 & 2 closed	Open	Closed

VESA BUS SPEED CONFIGURATION
CPU speed	JPV3
<=33MHz	Open
> 33MHz	Closed

VESA WAIT STATE CONFIGURATION
Wait states	JPV1	JPV2
0 wait states	Open	Open
1 wait state	Closed	Closed

EQUIPMENT PANEL CONFIGURATION
Description	J39
Ground	pin 1
Power	pin 2
Hard drive LED	pin 3
Not used	pin 4
Power	pin 5
Ground	pin 6
Turbo LED	pin 7
Keyboard inhibit	pin 8
Power	pin 9
Reset button	pin 10