Device Type	Mainboard
Processor	CX MII/AM K6/Pentium/Pentium MMX
Processor Speed	75/90/100/120/133/150/166/200/233/266/300MHz
Chip Set	Unidentified
Video Chip Set	Unidentified
Maximum Onboard Memory	256MB (EDO & SDRAM supported)
Maximum Video Memory	4MB
Cache	512KB
BIOS	Acer
Dimensions	254mm x 218mm
I/O Options	Ethernet 10BaseT connector, floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot, USB connector, audio in - CD-ROM, wake on LAN connector, wake on modem connector

CONNECTIONS
Purpose	Location	Purpose	Location
Audio in - CD-ROM	CDIN	IDE interface 1	CN21
AMC connector	CN1	IDE interface 2	CN23
VGA interface	CN2	LAN LED	CN24
VGA port	CN4	Ethernet 10BaseT connector	CN25
Chassis fan power	CN5	Audio connector	CN27
Printer connector	CN6	Green PC connector	CN28
Power LED	CN8	Modem connector	CN29
Reset switch	CN9	Chassis fan power	JP3
Parallel port	CN10	IDE interface LED	JP8/pins 1 - 3
USB connector	CN11	Power message LED	JP8/pins 2/4/6
Serial port/USB connector	CN12	Power on connector	JP8/pins 7 & 8
Wake on LAN connector	CN14	Power on connector	JP9
Voltage connector	CN15	Microphone in	JP10/pins 2 & 4
Wake on modem connector	CN16	Wavetable connector	JP10/pins 1/3/5
Game interface	CN17	LAN LED	JP17
Serial port 1	CN18	Speaker	JP25
PS/2 mouse port	CN19	Riser slot	SL1
Floppy drive interface	CN20
Note: The location of CN6, CN8, CN29 & JP25 are unidentified.

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	CN3	Unidentified
»	Factory configured - do not alter	CN17	Unidentified
»	Interrupt enabled	JP4	Pins 2 & 3 closed
	Interrupt disabled	JP4	Pins 1 & 2 closed
»	On board video enabled	JP7	Pins 2 & 3 closed
	On board video disabled	JP7	Pins 1 & 2 closed
»	Flash BIOS voltage select 5v	JP11	Pins 2 & 3 closed
	Flash BIOS voltage select 12v	JP11	Pins 1 & 2 closed
»	Support green PC connector	JP12	Pins 1 & 2 closed
	Support reset switch	JP12	Pins 2 & 3 closed
»	Boot block enabled	JP13	Pins 2 & 3 closed
	Boot block disabled	JP13	Pins 1 & 2 closed

USER CONFIGURABLE SETTINGS (CON'T)
Function		Label	Position
»	LAN disabled	JP15	Pins 2 & 3 closed
	LAN enabled	JP15	Pins 1 & 2 closed
»	UPS enabled	JP16	Pins 1 & 2 closed
	UPS disabled	JP16	Pins 2 & 3 closed
»	BIOS type select Acer	JP21	Pins 1 & 2 closed
	BIOS type select OEM	JP21	Pins 2 & 3 closed
»	Password disabled	JP22	Pins 2 & 3 closed
	Password enabled	JP22	Pins 1 & 2 closed

DIMM CONFIGURATION
Size	Bank 0	Bank 1
8MB	(1) 1M x 64	None
16MB	(1) 2M x 64	None
16MB	(1) 1M x 64	(1) 1M x 64
24MB	(1) 2M x 64	(1) 1M x 64
32MB	(1) 4M x 64	None
32MB	(1) 2M x 64	(1) 2M x 64
40MB	(1) 4M x 64	(1) 1M x 64
48MB	(1) 4M x 64	(1) 2M x 64
64MB	(1) 8M x 64	None
64MB	(1) 4M x 64	(1) 4M x 64
72MB	(1) 8M x 64	(1) 1M x 64
80MB	(1) 8M x 64	(1) 2M x 64
96MB	(1) 8M x 64	(1) 4M x 64
128MB	(1) 16M x 64	None
128MB	(1) 8M x 64	(1) 8M x 64
136MB	(1) 16M x 64	(1) 1M x 64
144MB	(1) 16M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 4M x 64
192MB	(1) 16M x 64	(1) 8M x 64
256MB	(1) 16M x 64	(1) 16M x 64
Note: Board accepts EDO & SDRAM memory.

CACHE CONFIGURATION
Size	Bank 0
512KB	(1) 64K x 64

VIDEO MEMORY CONFIGURATION

Note: The video memory is factory installed and is not configurable.

CPU SPEED SELECTION (CX 6X86MX)
CPU speed	Clock speed	Multiplier	JP18	JP19	JP20
200MHz	66MHz	2.5x	1 & 2	1 & 2	1 & 2
233MHz	66MHz	3x	1 & 2	1 & 2	1 & 2
233MHz	75MHz	2.5x	1 & 2	2 & 3	2 & 3
266MHz	66MHz	3.5x	1 & 2	1 & 2	1 & 2
266MHz	75MHz	3x	1 & 2	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX, CON'T)
CPU speed	Clock speed	Multiplier	S1/1	S1/2	S1/3	S1/4	S1/5
200MHz	66MHz	2.5x	Off	Off	Off	On	On
233MHz	66MHz	3x	Off	Off	Off	Off	On
233MHz	75MHz	2.5x	Off	Off	Off	On	On
266MHz	66MHz	3.5x	Off	Off	Off	Off	Off
266MHz	75MHz	3x	Off	Off	Off	Off	On

CPU SPEED SELECTION (AM K6)
CPU speed	Clock speed	Multiplier	JP18	JP19	JP20
166MHz	66MHz	2.5x	1 & 2	1 & 2	1 & 2
200MHz	66MHz	3x	1 & 2	1 & 2	1 & 2
233MHz	66MHz	3.5x	1 & 2	1 & 2	1 & 2
266MHz	66MHz	4x	1 & 2	1 & 2	1 & 2
300MHz	66MHz	4.5x	1 & 2	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6, CON'T)
CPU speed	Clock speed	Multiplier	S1/1	S1/2	S1/3	S1/4	S1/5
166MHz	66MHz	2.5x	Off	Off	Off	On	On
200MHz	66MHz	3x	Off	Off	Off	Off	On
233MHz	66MHz	3.5x	Off	Off	Off	Off	Off
266MHz	66MHz	4x	Off	Off	Off	On	Off
300MHz	66MHz	4.5x	Off	Off	Off	On	On

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP18	JP19	JP20
90MHz	60MHz	1.5x	2 & 3	1 & 2	1 & 2
100MHz	66MHz	1.5x	1 & 2	1 & 2	1 & 2
120MHz	60MHz	2x	2 & 3	1 & 2	1 & 2
133MHz	66MHz	2x	1 & 2	1 & 2	1 & 2
150MHz	60MHz	2.5x	2 & 3	1 & 2	1 & 2
166MHz	66MHz	2.5x	1 & 2	1 & 2	1 & 2
200MHz	66MHz	3x	1 & 2	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL, CON'T)
CPU speed	Clock speed	Multiplier	S1/1	S1/2	S1/3	S1/4	S1/5
90MHz	60MHz	1.5x	On	Off	Off	Off	Off
100MHz	66MHz	1.5x	Off	Off	Off	Off	Off
120MHz	60MHz	2x	On	Off	Off	On	Off
133MHz	66MHz	2x	Off	Off	Off	On	Off
150MHz	60MHz	2.5x	On	Off	Off	On	On
166MHz	66MHz	2.5x	Off	Off	Off	On	On
200MHz	66MHz	3x	Off	Off	Off	Off	On

CPU SPEED SELECTION (INTEL MMX)
CPU speed	Clock speed	Multiplier	JP18	JP19	JP20
166MHz	66MHz	2.5x	1 & 2	1 & 2	1 & 2
200MHz	66MHz	3x	1 & 2	1 & 2	1 & 2
233MHz	66MHz	3.5x	1 & 2	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX, CON'T)
CPU speed	Clock speed	Multiplier	S1/1	S1/2	S1/3	S1/4	S1/5
166MHz	66MHz	2.5x	Off	Off	Off	On	On
200MHz	66MHz	3x	Off	Off	Off	Off	On
233MHz	66MHz	3.5x	Off	Off	Off	Off	Off
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION
Type	JP1	JP2	JP14
P54C	Pins 2 & 3 closed	Closed	Open
P55C	Pins 2 & 3 closed	Open	Closed
AM K6	Pins 2 & 3 closed	Open	Closed
CX MII	Pins 2 & 3 closed	Open	Closed
AM K6-266	Pins 1 & 2 closed	Open	Closed
AM K6-300	Pins 1 & 2 closed	Open	Closed

CPU VOLTAGE SELECTION (SINGLE)
Voltage		JP5
»	3.3v	Pins 2 & 3 closed
	3.52v	Pins 1 & 2 closed

CPU VOLTAGE SELECTION (DUAL)
Voltage	JP6
1.8v	Pins 9 & 10 closed
2.1v	Pins 7 & 8 closed
2.8v	Pins 5 & 6 closed
2.9v	Pins 3 & 4 closed
3.2v	Pins 1 & 2 closed