MB-8500TTD Motherboard Settings and Configuration

Device Type	Mainboard
Processor	CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed	90/100/120/133/150/166/200/233/266MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	256MB (EDO & SDRAM supported)
Maximum Video Memory	None
Cache	256/512KB
BIOS	Award
Dimensions	220mm x 220mm
I/O Options	32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), IR connector, USB connector, ATX power connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
ATX power connector	ATX	Speaker	J15/pins 1 - 4
PS/2 mouse interface	J2	Power LED & keylock	J15/pins 5 - 9
Parallel port	J6	Soft off power supply	J15/pins 10 & 11
Floppy drive interface	J7	Reset switch	J15/pins 12 & 13
IDE interface 1	J9	Green PC connector	J15/pins 17 & 18
PS/2 mouse port	J10	IDE interface LED	J15/pins 20 & 21
Serial port 1	J11	IR connector	J15/pins 22 - 26
Serial port 2	J12	IDE interface 2	J16
USB connector	J13	32-bit PCI slots	PC1 – PC4
CPU fan power	J14

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP3	Pins 1 & 2 closed
	CMOS memory clear	JP3	Pins 2 & 3 closed
	On board battery disabled	JP3	Open

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
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

SIMM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
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
Note: Board accepts EDO memory.

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 SDRAM memory.

CACHE CONFIGURATION
Size	Bank 0	TAG
256KB	(2) 32K x 32	Unidentified
512KB	(2) 64K x 32	Unidentified

CPU SPEED SELECTION (CX 6X86)
CPU speed	Clock speed	Multiplier	JP9	JP11
133MHz	55MHz	2x	1 & 2	1 & 2, 3 & 4
150MHz	60MHz	2x	1 & 2	3 & 4, 5 & 6
166MHz	66MHz	2x	1 & 2	1 & 2, 5 & 6
200MHz	75MHz	2x	1 & 2	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)
CPU speed	Clock speed	Multiplier	JP9	JP11
133MHz	55MHz	2x	1 & 2	1 & 2, 3 & 4
150MHz	60MHz	2x	1 & 2	3 & 4, 5 & 6
166MHz	66MHz	2x	1 & 2	1 & 2, 5 & 6
200MHz	75MHz	2x	1 & 2	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)
CPU speed	Clock speed	Multiplier	JP9	JP11
150MHz	60MHz	2x	1 & 2	3 & 4, 5 & 6
166MHz	66MHz	2x	1 & 2	1 & 2, 5 & 6
166MHz	60MHz	2.5x	1 & 2, 3 & 4	3 & 4, 5 & 6
200MHz	75MHz	2x	1 & 2	3 & 4
200MHz	66MHz	2.5x	1 & 2, 3 & 4	1 & 2, 5 & 6
200MHz	60MHz	3x	3 & 4	3 & 4, 5 & 6
233MHz	75MHz	2.5x	1 & 2, 3 & 4	3 & 4
233MHz	66MHz	3x	3 & 4	1 & 2, 5 & 6
266MHz	66MHz	3.5x	Open	1 & 2, 5 & 6
266MHz	75MHz	3x	3 & 4	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	JP9	JP11
90MHz	60MHz	1.5x	Open	3 & 4, 5 & 6
100MHz	66MHz	1.5x	Open	1 & 2, 5 & 6
120MHz	60MHz	2x	1 & 2	3 & 4, 5 & 6
133MHz	66MHz	2x	1 & 2	1 & 2, 5 & 6
166MHz	66MHz	2.5x	1 & 2, 3 & 4	1 & 2, 5 & 6
200MHz	66MHz	3x	3 & 4	1 & 2, 5 & 6
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed	Clock speed	Multiplier	JP9	JP11
166MHz	66MHz	2.5x	1 & 2, 3 & 4	1 & 2, 5 & 6
200MHz	66MHz	3x	3 & 4	1 & 2, 5 & 6
233MHz	66MHz	3.5x	Open	1 & 2, 5 & 6
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP9	JP11
90MHz	60MHz	1.5x	Open	3 & 4, 5 & 6
100MHz	66MHz	1.5x	Open	1 & 2, 5 & 6
120MHz	60MHz	2x	1 & 2	3 & 4, 5 & 6
133MHz	66MHz	2x	1 & 2	1 & 2, 5 & 6
150MHz	60MHz	2.5x	1 & 2, 3 & 4	3 & 4, 5 & 6
166MHz	66MHz	2.5x	1 & 2, 3 & 4	1 & 2, 5 & 6
200MHz	66MHz	3x	3 & 4	1 & 2, 5 & 6
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed	Clock speed	Multiplier	JP9	JP11
166MHz	66MHz	2.5x	1 & 2, 3 & 4	1 & 2, 5 & 6
200MHz	66MHz	3x	3 & 4	1 & 2, 5 & 6
233MHz	66MHz	3.5x	Open	1 & 2, 5 & 6
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)
Voltage	JP7	JP8
3.5v	Pins 5 & 6 closed	Pins 1 & 2, 3 & 4, 5 & 6 closed

CPU VOLTAGE SELECTION (DUAL)
Voltage	V core	JP7	JP8
3.4v	2.8v	Open	Open
3.4v	2.9v	Pins 1 & 2 closed	Open
3.4v	3.2v	Pins 3 & 4 closed	Open