AX53 Motherboard Settings and Configuration

Device Type	Mainboard
Processor	CX 6X86/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed	75/90/100/120/133/150/166/200MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	512MB (EDO & SDRAM supported)
Maximum Video Memory	None
Cache	256/512KB
BIOS	AMI
Dimensions	284mm x 208mm
I/O Options	32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), cache slot, IR connector, USB connector, ATX power connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
ATX power connector	ATX	IDE interface LED	CN13
Serial port 2	C1	USB connector	CN14
Parallel port	C2	Power LED & keylock	CN15/pins 1 - 5
PS/2 mouse port	C3	Speaker	CN15/pins 7 - 10
Serial port 1	CN1	Green PC LED	CN15/pins 12 & 13
CPU fan power	CN5	Green PC connector	CN15/pins 15 - 17
Floppy drive interface	CN6	Reset switch	CN15/pins 19 & 20
IDE interface 2	CN9	32-bit PCI slots	PC1 - PC4
IDE interface 1	CN10	Cache slot	SL1
IR connector	CN12

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	ATX power supply enabled	JP1	Pins 2 & 3 closed
	ATX power supply disabled	JP1	Pins 1 & 2 closed
»	CMOS memory normal operation	JP9	Pins 1 & 2 closed
	CMOS memory clear	JP9	Pins 2 & 3 closed
»	On board I/O enabled	JP12	Pins 1 & 2 closed
	On board I/O disabled	JP12	Pins 2 & 3 closed
»	Factory configured - do not alter	JP13	Unidentified
»	PS/2 mouse enabled	JP14	Closed
	PS/2 mouse disabled	JP14	Open
»	Keyboard clock select ISA clock	JP15	Pins 1 & 2 closed
	Keyboard clock select 12MHz	JP15	Pins 3 & 4 closed

SIMM CONFIGURATION
Size	Bank 0	Bank 1
8MB	(2) 1M x 36	None
16MB	(2) 2M x 36	None
16MB	(2) 1M x 36	(2) 1M x 36
24MB	(2) 2M x 36	(2) 1M x 36
32MB	(2) 4M x 36	None
32MB	(2) 2M x 36	(2) 2M x 36
40MB	(2) 4M x 36	(2) 1M x 36
48MB	(2) 4M x 36	(2) 2M x 36
64MB	(2) 8M x 36	None
64MB	(2) 4M x 36	(2) 4M x 36
72MB	(2) 8M x 36	(2) 1M x 36

SIMM CONFIGURATION (CON'T)
Size	Bank 0	Bank 1
80MB	(2) 8M x 36	(2) 2M x 36
96MB	(2) 8M x 36	(2) 4M x 36
128MB	(2) 8M x 36	(2) 8M x 36
128MB	(2) 16M x 36	None
136MB	(2) 16M x 36	(2) 1M x 36
144MB	(2) 16M x 36	(2) 2M x 36
160MB	(2) 16M x 36	(2) 4M x 36
192MB	(2) 16M x 36	(2) 8M x 36
256MB	(2) 16M x 36	(2) 16M x 36
256MB	(2) 32M x 36	None
264MB	(2) 32M x 36	(2) 1M x 36
272MB	(2) 32M x 36	(2) 2M x 36
288MB	(2) 32M x 36	(2) 4M x 36
320MB	(2) 32M x 36	(2) 8M x 36
384MB	(2) 32M x 36	(2) 16M x 36
512MB	(2) 32M x 36	(2) 32M x 36
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Size	Bank 0	SL1
256KB	(2) 32K x 32	Not installed
512KB	(2) 32K x 32	256KB module installed

CACHE JUMPER CONFIGURATION
Size	JP7
256KB	Pins 1 & 2 closed
512KB	Pins 2 & 3 closed

CACHE MODULE CONFIGURATION
Type	JP16
Module with TAG	Pins 2 & 3 closed
Module without TAG	Pins 1 & 2 closed

CPU SPEED SELECTION (CX 6X86)
CPU speed	Clock speed	Multiplier	JP2	JP4	JP5	JP8
120MHz	50MHz	2x	Open	1 & 2, 3 & 4, 5 & 6	Open	1 & 2, 3 & 4
133MHz	55MHz	2x	Open	1 & 2, 3 & 4, 5 & 6	Open	Open
150MHz	60MHz	2x	Open	1 & 2, 3 & 4, 5 & 6	Open	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	JP2	JP4	JP5	JP8
75MHz	50MHz	1.5x	1 & 2	1 & 2, 3 & 4, 5 & 6	Open	1 & 2, 3 & 4
90MHz	60MHz	1.5x	1 & 2	1 & 2, 3 & 4, 5 & 6	Open	1 & 2
100MHz	66MHz	1.5x	1 & 2	1 & 2, 3 & 4, 5 & 6	Open	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP2	JP4	JP5	JP8
75MHz	50MHz	1.5x	1 & 2, 3 & 4	1 & 2, 3 & 4, 5 & 6	Open	1 & 2, 3 & 4
90MHz	60MHz	1.5x	1 & 2, 3 & 4	1 & 2, 3 & 4, 5 & 6	Open	1 & 2
100MHz	66MHz	1.5x	1 & 2, 3 & 4	1 & 2, 3 & 4, 5 & 6	Open	3 & 4
120MHz	60MHz	2x	3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	Open	1 & 2
133MHz	66MHz	2x	3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6	Open	3 & 4
150MHz	60MHz	2.5x	5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6	Open	1 & 2
166MHz	66MHz	2.5x	5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6	Open	3 & 4
200MHz	66MHz	3x	1 & 2, 7 & 8	1 & 2, 3 & 4, 5 & 6	Open	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed	Clock speed	Multiplier	JP2	JP4	JP5	JP8
150MHz	60MHz	2.5x	5 & 6, 7 & 8	Open	1 & 2, 3 & 4	1 & 2
166MHz	66MHz	2.5x	5 & 6, 7 & 8	Open	1 & 2, 3 & 4	3 & 4
200MHz	66MHz	3x	1 & 2, 7 & 8	Open	1 & 2, 3 & 4	3 & 4
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)
Voltage		JP6
»	3.45v	Pins 1 & 2 closed
	3.52v	Pins 3 & 4 closed

CPU VOLTAGE SELECTION (DUAL)
V core		JP3
	2.5v	Pins 11 & 12 closed
	2.7v	Pins 9 & 10 closed
	2.8v	Pins 7 & 8 closed
	2.9v	Pins 5 & 6 closed
»	3.43v	Pins 3 & 4 closed
	3.52v	Pins 1 & 2 closed