MS-4145 Motherboard Settings and Configuration

ACHME COMPUTER, INC.

MS-4145

Processor
80486SX/SL80486SX/AM486DX/(SL)AM486DX/80486DX/ SL80486DX/CX486DX2/IBM486DX2/SGS486DX2/TI486DX2/ AM486DX2/ODP486DX2/80486DX2/SL80486DX2/SL80486DX4/ P24D/P24T/CX5X86/(SL)AM X5
Processor Speed
25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)/133(internal)/160(internal)MHz
Chip Set
ALI
Video Chip Set
None
Maximum Onboard Memory
64MB
Maximum Video Memory
None
Cache
128/256/512KB
BIOS
Award
Dimensions
220mm x 220mm
I/O Options
32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Serial port 1
CN1
Green PC LED
JG1
Serial port 2
CN2
Power LED & keylock
JFP/pins 1 - 5
Floppy drive interface
CN3
Speaker
JFP/pins 7 - 10
Parallel port
CN4
Turbo LED
JFP/pins 12 & 13
IDE interface 2
CN5
Turbo switch
JFP/pins 15 - 17
IDE interface 1
CN6
Reset switch
JFP/pins 19 & 20
Chassis fan power
FAN
IDE interface LED
JFP/pins 21 & 22
External battery
JBAT
32-bit PCI slots
PC1 - PC3

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
Battery type select internal
JBAT
Pins 2 & 3 closed

Battery type select external
JBAT
Closed
»
Parallel port address select 378
JIRQ
Pins 1 & 2 closed

Parallel port address select 278
JIRQ
Pins 2 & 3 closed
»
Factory configured - do not alter
JS3
Unidentified

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
4MB
(1) 1M x 36
None
None
8MB
(1) 1M x 36
(1) 1M x 36
None
8MB
(1) 2M x 36
None
None
12MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
12MB
(1) 1M x 36
(1) 2M x 36
None
16MB
(1) 4M x 36
None
None
16MB
(1) 2M x 36
(1) 2M x 36
None
16MB
(1) 1M x 36
(1) 2M x 36
(1) 1M x 36
20MB
(1) 1M x 36
(1) 4M x 36
None
24MB
(1) 1M x 36
(1) 1M x 36
(1) 4M x 36
24MB
(1) 4M x 36
(1) 2M x 36
None
32MB
(1) 4M x 36
(1) 4M x 36
None
32MB
(1) 8M x 36
None
None
36MB
(1) 1M x 36
(1) 8M x 36
None
40MB
(1) 2M x 36
(1) 8M x 36
None
40MB
(1) 4M x 36
(1) 2M x 36
(1) 4M x 36
40MB
(1) 1M x 36
(1) 8M x 36
(1) 1M x 36
48MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
48MB
(1) 4M x 36
(1) 8M x 36
None
64MB
(1) 8M x 36
(1) 8M x 36
None
64MB
(1) 4M x 36
(1) 8M x 36
(1) 4M x 36

CACHE CONFIGURATION
Size
Bank 0
Bank 1
TAG
128KB
(4) 32K x 8
None
(1) 8K/16K/32K x 8
256KB (A)
(4) 32K x 8
(4) 32K x 8
(1) 8K/16K/32K x 8
256KB (B)
(2) 64K x 32
None
(1) 8K/16K/32K x 8
Note: Board also accepts 512KB cache. The chip sizes and jumper settings are unidentified.

CACHE JUMPER CONFIGURATION
Size
JS1
JS2
JS4
128KB
Pins 1 & 2 closed
Pins 1 & 2 closed
Pins 2 & 3 closed
256KB (A)
Pins 2 & 3 closed
Pins 1 & 2 closed
Pins 1 & 2 closed
256KB (B)
Pins 1 & 2 closed
Pins 1 & 2 closed
Pins 1 & 2 closed

CPU SPEED SELECTION
Speed
JK1
JK2
25MHz
Open
Pins 1 & 2 closed
33MHz
Pins 1 & 2, 3 & 4 closed
Pins 1 & 2 closed
40MHz
Pins 1 & 2 closed
Pins 2 & 3, 4 & 5 closed
50iMHz
Open
Pins 1 & 2 closed
66iMHz
Pins 1 & 2, 3 & 4 closed
Pins 1 & 2 closed
75iMHz
Open
Pins 1 & 2 closed
80iMHz
Pins 1 & 2 closed
Pins 2 & 3, 4 & 5 closed
100iMHz
Pins 1 & 2, 3 & 4 closed
Pins 1 & 2 closed
120iMHz
Pins 1 & 2 closed
Pins 2 & 3, 4 & 5 closed
133iMHz
Pins 1 & 2, 3 & 4 closed
Pins 1 & 2 closed
160iMHz
Pins 1 & 2 closed
Pins 2 & 3, 4 & 5 closed

CPU TYPE SELECTION
Type
JC1
JC2
JC3
JC4
JC5
80486SX
Open
Open
Open
1 & 2
2 & 3
SL80486SX
Open
Open
Open
1 & 2
2 & 3
AM486DX
Open
Open
Open
2 & 3
1 & 2
(SL)AM486DX
Open
Open
Open
2 & 3
1 & 2
80486DX
Open
Open
Open
2 & 3
1 & 2
SL80486DX
Open
Open
Open
2 & 3
1 & 2
CX486DX2
Open
Closed
Open
2 & 3
1 & 2
IBM486DX2
Open
Closed
Open
2 & 3
1 & 2
SGS486DX2
Open
Closed
Open
2 & 3
1 & 2
TI486DX2
Open
Closed
Open
2 & 3
1 & 2
AM486DX2
Open
Open
Open
2 & 3
1 & 2
ODP486DX2
Open
Open
Open
2 & 3
1 & 2
80486DX2
Open
Open
Open
2 & 3
1 & 2
SL80486DX2
Open
Open
Open
2 & 3
1 & 2
SL80486DX4
Open
Open
Open
2 & 3
1 & 2
P24D
1 & 2, 3 & 4
Open
Open
2 & 3
1 & 2
P24T
1 & 2, 3 & 4
Open
Open
2 & 3
1 & 2
CX5X86
1 & 2, 3 & 4
Open
Open
2 & 3
1 & 2
(SL)AM X5
1 & 2, 3 & 4
Open
Open
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION
Type
R1
R2
R2
80486SX
Pins 1 - 10 closed
Not installed
Not installed
SL80486SX
Pins 3 - 13 closed
Not installed
Not installed
AM486DX
Pins 1 - 10 closed
Not installed
Not installed
(SL)AM486DX
Pins 1 - 10 closed
Not installed
Not installed
80486DX
Pins 1 - 10 closed
Not installed
Not installed
SL80486DX
Pins 3 - 13 closed
Not installed
Not installed
CX486DX2
Installed
Not installed
Not installed
IBM486DX2
Installed
Not installed
Not installed
SGS486DX2
Installed
Not installed
Not installed
TI486DX2
Installed
Not installed
Not installed
AM486DX2
Pins 1 - 10 closed
Not installed
Not installed
ODP486DX2
Pins 3 - 13 closed
Not installed
Not installed
80486DX2
Pins 1 - 10 closed
Not installed
Not installed
SL80486DX2
Pins 3 - 13 closed
Not installed
Not installed
SL80486DX4
Pins 3 - 13 closed
Not installed
Not installed
P24D
Pins 5 - 14 closed
Not installed
Not installed
P24T
Pins 5 - 14 closed
Not installed
Not installed
CX5X86
Pins 3 - 13 closed
Not installed
Not installed
(SL)AM X5
Pins 5 - 14 closed
Not installed
Not installed

CPU VOLTAGE SELECTION
Voltage
JP1
JV1
»
3v
Open
Open

4v
Closed
Open

5v
Open
Pins 1 & 2, 3 & 4, 5 & 6 closed

DMA CHANNEL SELECTION
Channel
JP3
JP4
1
Pins 2 & 3 closed
Pins 2 & 3 closed
3
Pins 1 & 2 closed
Pins 1 & 2 closed

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Processor	80486SX/SL80486SX/AM486DX/(SL)AM486DX/80486DX/ SL80486DX/CX486DX2/IBM486DX2/SGS486DX2/TI486DX2/ AM486DX2/ODP486DX2/80486DX2/SL80486DX2/SL80486DX4/ P24D/P24T/CX5X86/(SL)AM X5
Processor Speed	25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)/133(internal)/160(internal)MHz
Chip Set	ALI
Video Chip Set	None
Maximum Onboard Memory	64MB
Maximum Video Memory	None
Cache	128/256/512KB
BIOS	Award
Dimensions	220mm x 220mm
I/O Options	32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	CN1	Green PC LED	JG1
Serial port 2	CN2	Power LED & keylock	JFP/pins 1 - 5
Floppy drive interface	CN3	Speaker	JFP/pins 7 - 10
Parallel port	CN4	Turbo LED	JFP/pins 12 & 13
IDE interface 2	CN5	Turbo switch	JFP/pins 15 - 17
IDE interface 1	CN6	Reset switch	JFP/pins 19 & 20
Chassis fan power	FAN	IDE interface LED	JFP/pins 21 & 22
External battery	JBAT	32-bit PCI slots	PC1 - PC3

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Battery type select internal	JBAT	Pins 2 & 3 closed
	Battery type select external	JBAT	Closed
»	Parallel port address select 378	JIRQ	Pins 1 & 2 closed
	Parallel port address select 278	JIRQ	Pins 2 & 3 closed
»	Factory configured - do not alter	JS3	Unidentified

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
4MB	(1) 1M x 36	None	None
8MB	(1) 1M x 36	(1) 1M x 36	None
8MB	(1) 2M x 36	None	None
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 1M x 36	(1) 2M x 36	None
16MB	(1) 4M x 36	None	None
16MB	(1) 2M x 36	(1) 2M x 36	None
16MB	(1) 1M x 36	(1) 2M x 36	(1) 1M x 36
20MB	(1) 1M x 36	(1) 4M x 36	None
24MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36
24MB	(1) 4M x 36	(1) 2M x 36	None
32MB	(1) 4M x 36	(1) 4M x 36	None
32MB	(1) 8M x 36	None	None
36MB	(1) 1M x 36	(1) 8M x 36	None
40MB	(1) 2M x 36	(1) 8M x 36	None
40MB	(1) 4M x 36	(1) 2M x 36	(1) 4M x 36
40MB	(1) 1M x 36	(1) 8M x 36	(1) 1M x 36
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
48MB	(1) 4M x 36	(1) 8M x 36	None
64MB	(1) 8M x 36	(1) 8M x 36	None
64MB	(1) 4M x 36	(1) 8M x 36	(1) 4M x 36

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	None	(1) 8K/16K/32K x 8
256KB (A)	(4) 32K x 8	(4) 32K x 8	(1) 8K/16K/32K x 8
256KB (B)	(2) 64K x 32	None	(1) 8K/16K/32K x 8
Note: Board also accepts 512KB cache. The chip sizes and jumper settings are unidentified.

CACHE JUMPER CONFIGURATION
Size	JS1	JS2	JS4
128KB	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
256KB (A)	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
256KB (B)	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed

CPU SPEED SELECTION
Speed	JK1	JK2
25MHz	Open	Pins 1 & 2 closed
33MHz	Pins 1 & 2, 3 & 4 closed	Pins 1 & 2 closed
40MHz	Pins 1 & 2 closed	Pins 2 & 3, 4 & 5 closed
50iMHz	Open	Pins 1 & 2 closed
66iMHz	Pins 1 & 2, 3 & 4 closed	Pins 1 & 2 closed
75iMHz	Open	Pins 1 & 2 closed
80iMHz	Pins 1 & 2 closed	Pins 2 & 3, 4 & 5 closed
100iMHz	Pins 1 & 2, 3 & 4 closed	Pins 1 & 2 closed
120iMHz	Pins 1 & 2 closed	Pins 2 & 3, 4 & 5 closed
133iMHz	Pins 1 & 2, 3 & 4 closed	Pins 1 & 2 closed
160iMHz	Pins 1 & 2 closed	Pins 2 & 3, 4 & 5 closed

CPU TYPE SELECTION
Type	JC1	JC2	JC3	JC4	JC5
80486SX	Open	Open	Open	1 & 2	2 & 3
SL80486SX	Open	Open	Open	1 & 2	2 & 3
AM486DX	Open	Open	Open	2 & 3	1 & 2
(SL)AM486DX	Open	Open	Open	2 & 3	1 & 2
80486DX	Open	Open	Open	2 & 3	1 & 2
SL80486DX	Open	Open	Open	2 & 3	1 & 2
CX486DX2	Open	Closed	Open	2 & 3	1 & 2
IBM486DX2	Open	Closed	Open	2 & 3	1 & 2
SGS486DX2	Open	Closed	Open	2 & 3	1 & 2
TI486DX2	Open	Closed	Open	2 & 3	1 & 2
AM486DX2	Open	Open	Open	2 & 3	1 & 2
ODP486DX2	Open	Open	Open	2 & 3	1 & 2
80486DX2	Open	Open	Open	2 & 3	1 & 2
SL80486DX2	Open	Open	Open	2 & 3	1 & 2
SL80486DX4	Open	Open	Open	2 & 3	1 & 2
P24D	1 & 2, 3 & 4	Open	Open	2 & 3	1 & 2
P24T	1 & 2, 3 & 4	Open	Open	2 & 3	1 & 2
CX5X86	1 & 2, 3 & 4	Open	Open	2 & 3	1 & 2
(SL)AM X5	1 & 2, 3 & 4	Open	Open	2 & 3	1 & 2
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage		JP1	JV1
»	3v	Open	Open
	4v	Closed	Open
	5v	Open	Pins 1 & 2, 3 & 4, 5 & 6 closed

DMA CHANNEL SELECTION
Channel	JP3	JP4
1	Pins 2 & 3 closed	Pins 2 & 3 closed
3	Pins 1 & 2 closed	Pins 1 & 2 closed