Processor	80486SX/80486SX2/80487SX/80486DX/80486DX2/P24T
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Unidentified
Video Chip Set	Unidentified
Maximum Onboard Memory	64MB
Maximum Video Memory	Unidentified
Cache	128/256KB
BIOS	Unidentified
Dimensions	254mm x 218mm
I/O Options	Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VESA feature connector, VGA port, riser slot,
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
VGA port	CN1	Floppy drive interface	CN8
Parallel port	CN2	IDE interface LED	J26
Serial port	CN3	Speaker	J27
Serial port	CN4	Auxiliary power connector	J29
PS/2 mouse port	CN5	Auxiliary power connector	J30
VESA feature connector	CN6	Chassis fan power	J38
IDE interface	CN7	Riser slot	SL1

USER CONFIGURABLE SETTINGS
Function		Label	Position
	On board video enabled	J15	Pins 1 & 2 closed
	On board video disabled	J15	Pins 2 & 3 closed
	Parity enabled	J50	Pins 1 & 2 closed
	Parity disabled	J50	Pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	None	None	None
2MB	(1) 512K x 36	None	None	None
4MB	(1) 1M x 36	None	None	None
4MB	(1) 512K x 36	(1) 512K x 36	None	None
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
5MB	(1) 1M x 36	(1) 256K x 36	None	None
6MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	None
7MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
8MB	(1) 2M x 36	None	None	None
8MB	(1) 1M x 36	(1) 1M x 36	None	None
10MB	(1) 2M x 36	(1) 256K x 36	(1) 256K x 36	None
12MB	(1) 2M x 36	(1) 1M x 36	None	None
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	None
14MB	(1) 2M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
16MB	(1) 4M x 36	None	None	None
16MB	(1) 2M x 36	(1) 2M x 36	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
17MB	(1) 4M x 36	(1) 256K x 36	None	None
18MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	None
20MB	(1) 4M x 36	(1) 1M x 36	None	None
22MB	(1) 4M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
24MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	None
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
32MB	(1) 8M x 36	None	None	None
32MB	(1) 4M x 36	(1) 4M x 36	None	None

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
34MB	(1) 8M x 36	(1) 512K x 36	None	None
36MB	(1) 8M x 36	(1) 1M x 36	None	None
40MB	(1) 2M x 36	(1) 8M x 36	None	None
44MB	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
48MB	(1) 8M x 36	(1) 2M x 36	(1) 2M x 36	None
64MB	(1) 8M x 36	(1) 8M x 36	None	None
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	None	(1) 8K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	J12	J13	J16	J17	J51
128KB	2 & 3	1 & 2	2 & 3	1 & 2	1 & 2
256KB	1 & 2	2 & 3	1 & 2	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

VIDEO MEMORY CONFIGURATION

Note: The size of the video memory chip is unidentified.

CPU SPEED SELECTION
Speed	J37
25MHz	Closed
33MHz	Open
50iMHz	Closed
66iMHz	Open

CPU TYPE SELECTION
Processor installed	Processor upgrade	J24	J25	J31
80486SX	80486SX2	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
80486SX	80487SX	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
80486SX	80486DX	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
80486SX	80486DX2	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
80486SX	P24T	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
80486SX2	P24T	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
80486DX	80486SX2	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
80486DX	80486DX2	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
80486DX	P24T	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
80486DX2	P24T	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed