VS48664-3VL Motherboard Settings and Configuration

YOUNG MICRO SYSTEMS, INC.

VS48664-3VL

Processor
CXM6/AM486SX/SL80486/80486SX/CXM7/AM486DX/80486DX/80486DX2/ P24C/P24D/Pentium Overdrive
Processor Speed
25/33/40/50(internal)/50/66(internal)MHz
Chip Set
Symphony
Max. Onboard DRAM
128MB
Cache
64/128/256/512/1024KB
BIOS
AMI/Phoenix
Dimensions
330mm x 218mm
I/O Options
32-bit VESA local bus slots (3), green PC connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Power LED & keylock
CN1
Turbo LED
CN5
Speaker
CN2
Green PC connector
JP15
Turbo switch
CN3
32-bit VESA local bus slots
SL1 - SL3
Reset switch
CN4

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Factory configured - do not alter
J27
N/A
»
Factory configured - do not alter
J28
N/A
»
Factory configured - do not alter
J29
N/A
»
Factory configured - do not alter
J30
N/A
»
Factory configured - do not alter
J31
N/A
»
Factory configured - do not alter
J32
N/A
»
Factory configured - do not alter
J33
N/A
»
Factory configured - do not alter
J34
N/A
»
Factory configured - do not alter
JP3
N/A
»
Factory configured - do not alter
JP9
N/A
»
Parity check enabled
JP16
pins 1 & 2 closed

Parity check disabled
JP16
pins 2 & 3 closed
»
Monitor type select color
JP17
Closed

Monitor type select monochrome
JP17
Open
»
BIOS type select normal
JP18
pins 1 & 2 closed

BIOS type select flash
JP18
pins 2 & 3 closed
»
Factory configured - do not alter
JP19
N/A
»
Factory configured - do not alter
JP22
N/A
»
Factory configured - do not alter
JP28
N/A
»
Factory configured - do not alter
JP29
N/A
»
Factory configured - do not alter
JP30
N/A
»
Factory configured - do not alter
JP31
N/A
Note: The location of jumpers JP9, JP28, JP29, JP30 & JP31 are unidentified.

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(1) 256K x 36
NONE
NONE
NONE
4MB
(1) 512K x 36
(1) 512K x 36
NONE
NONE
4MB
(1) 1M x 36
NONE
NONE
NONE
8MB
(1) 1M x 36
(1) 1M x 36
NONE
NONE
8MB
(1) 2M x 36
NONE
NONE
NONE
16MB
(1) 4M x 36
NONE
NONE
NONE
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
32MB
(1) 4M x 36
(1) 4M x 36
NONE
NONE
32MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
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
96MB
(1) 8M x 36
(1) 8M x 36
(1) 4M x 36
(1) 4M x 36
128MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36

CACHE CONFIGURATION
Size
Bank 0
Bank 1
TAG
64KB
(4) 8K x 8
(4) 8K x 8
(2) 8K x 8
128KB
(4) 32K x 8
NONE
(2) 8K x 8
256KB
(4) 32K x 8
(4) 32K x 8
(2) 32K x 8
512KB
(4) 128K x 8
NONE
(2) 32K x 8
1MB
(4) 128K x 8
(4) 128K x 8
(2) 128K x 8

CACHE JUMPER CONFIGURATION
Size
JD1
JD2
JT1
JT2
JT3
64KB
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
128KB
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
256KB
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
512KB
1 & 2
1 & 2
2 & 3
2 & 3
2 & 3
1MB
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type
JP1
JP2
JP4
JP5
JP6
CXM6 1x
Open
Open
Open
2 & 3
Closed
CXM6 2x
Open
Open
Open
2 & 3
Closed
AM486SX (WT)
Open
Closed
Open
2 & 3
Closed
AM486SX (WB)
Closed
Closed
Open
2 & 3
Closed
SL80486
Open
Closed
Open
1 & 2
Closed
80486SX
Open
Open
Open
2 & 3
Closed
AM486DX (WT)
Open
Closed
Open
2 & 3
Closed
AM486DX (WB)
Closed
Closed
Closed
2 & 3
Closed
CXM7 1x
Open
Open
Open
1 & 2
Closed
CXM7 2x
Open
Open
Open
1 & 2
Closed
80486DX
Open
Open
Open
1 & 2
Closed
80486DX2
Open
Open
Open
1 & 2
Closed
P24C 2x
Open
Closed
Open
1 & 2
Closed
P24C 3x
Open
Closed
Open
1 & 2
Closed
P24D (WT)
Open
Closed
Open
1 & 2
Closed
P24D (WB)
Closed
Closed
Closed
1 & 2
Closed
P24T 2x (WT)
Open
Closed
Open
1 & 2
Open
P24T 2x (WB)
Closed
Closed
Closed
1 & 2
Open
P24T 3x (WT)
Open
Closed
Open
1 & 2
Open
P24T 3x (WB)
Closed
Closed
Closed
1 & 2
Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP7
JP8
JP10
JP11
JP12
CXM6 1x
1 & 2
Closed
Open
Open
Open
CXM6 2x
1 & 2
Closed
Open
Open
Closed
AM486SX (WT)
Open
Open
Open
Open
Open
AM486SX (WB)
Open
Open
Open
Open
Open
SL80486
Open
Open
Open
1 & 2
Open
80486SX
Open
Open
Open
Open
Open
AM486DX (WT)
Open
Open
Open
1 & 2
Open
AM486DX (WB)
Open
Open
Open
1 & 2
Open
CXM7 1x
1 & 2
Closed
Open
1 & 2
Open
CXM7 2x
1 & 2
Closed
Open
1 & 2
Closed
80486DX
Open
Open
Open
1 & 2
Open
80486DX2
Open
Open
Open
1 & 2
Open
P24C 2x
Open
Open
1 & 2
2 & 3
Open
P24C 3x
Open
Open
Open
2 & 3
Open
P24D (WT)
2 & 3
Open
Open
1 & 2
Open
P24D (WB)
2 & 3
Open
Open
1 & 2
Open
P24T 2x (WT)
Open
Open
1 & 2
2 & 3
Open
P24T 2x (WB)
Open
Open
1 & 2
2 & 3
Open
P24T 3x (WT)
Open
Open
Open
2 & 3
Open
P24T 3x (WB)
Open
Open
Open
2 & 3
Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP13
JP23
JP24
JP41
JP42
CXM6 1x
Closed
Closed
Closed
Open
Open
CXM6 2x
Closed
Closed
Closed
Open
Open
AM486SX (WT)
Open
Open
Open
2 & 3
2 & 3
AM486SX (WB)
Open
Open
Open
2 & 3
2 & 3
SL80486
Open
Open
Open
Open
Open
80486SX
Open
Closed
Closed
Open
Open
AM486DX (WT)
Open
Open
Open
2 & 3
2 & 3
AM486DX (WB)
Open
Open
Open
2 & 3
2 & 3
CXM7 1x
Closed
Closed
Closed
Open
Open
CXM7 2x
Closed
Closed
Closed
Open
Open
80486DX
Open
Closed
Closed
Open
Open
80486DX2
Open
Closed
Closed
Open
Open
P24C 2x
Open
Open
Open
Open
Open
P24C 3x
Open
Open
Open
Open
Open
P24D (WT)
Open
Open
Open
1 & 2
1 & 2
P24D (WB)
Open
Open
Open
1 & 2
1 & 2
P24T 2x (WT)
Open
Open
Open
Open
Open
P24T 2x (WB)
Open
Open
Open
Open
Open
P24T 3x (WT)
Open
Open
Open
Open
Open
P24T 3x (WB)
Open
Open
Open
Open
Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
RN1
RN2
CXM6 1x
Open
Open
CXM6 2x
Open
Open
AM486SX (WT)
Open
1 & 2, 3 & 4, 5 & 6, 7 & 8
AM486SX (WB)
Open
1 & 2, 3 & 4, 5 & 6, 7 & 8
SL80486
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
80486SX
Open
Open
AM486DX (WT)
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
AM486DX (WB)
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
CXM7 1x
1 & 2, 3 & 4, 5 & 6, 7 & 8
Open
CXM7 2x
1 & 2, 3 & 4, 5 & 6, 7 & 8
Open
80486DX
1 & 2, 3 & 4, 5 & 6, 7 & 8
Open
80486DX2
1 & 2, 3 & 4, 5 & 6, 7 & 8
Open
P24C 2x
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
P24C 3x
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
P24D (WT)
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
P24D (WB)
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
P24T 2x (WT)
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
P24T 2x (WB)
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
P24T 3x (WT)
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
P24T 3x (WB)
1 & 2, 3 & 4, 5 & 6, 7 & 8
1 & 2, 3 & 4, 5 & 6, 7 & 8
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed
JP25
JP26
JP27
25MHz
Closed
Open
Closed
33MHZ
Open
Open
Closed
40MHz
Closed
Closed
Open
50iMHz
Closed
Open
Closed
50MHz
Open
Closed
Open
66iMHz
Open
Open
Closed

CPU VOLTAGE CONFIGURATION
Voltage
CN6
3.3v
Open
5v
pins 1 & 2, 3 & 4, 5 & 6 closed

VESA WAIT STATE CONFIGURATION
Wait states
JP20
0 wait states
pins 1 & 2 closed
1 wait state
pins 2 & 3 closed

BUS SPEED CONFIGURATION
CPU speed
JP21
<= 33MHz
pins 1 & 2 closed
> 33MHz
pins 2 & 3 closed

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VS48664-3VL Motherboard Settings and Configuration

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Processor	CXM6/AM486SX/SL80486/80486SX/CXM7/AM486DX/80486DX/80486DX2/ P24C/P24D/Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)MHz
Chip Set	Symphony
Max. Onboard DRAM	128MB
Cache	64/128/256/512/1024KB
BIOS	AMI/Phoenix
Dimensions	330mm x 218mm
I/O Options	32-bit VESA local bus slots (3), green PC connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	CN1	Turbo LED	CN5
Speaker	CN2	Green PC connector	JP15
Turbo switch	CN3	32-bit VESA local bus slots	SL1 - SL3
Reset switch	CN4

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	J27	N/A
»	Factory configured - do not alter	J28	N/A
»	Factory configured - do not alter	J29	N/A
»	Factory configured - do not alter	J30	N/A
»	Factory configured - do not alter	J31	N/A
»	Factory configured - do not alter	J32	N/A
»	Factory configured - do not alter	J33	N/A
»	Factory configured - do not alter	J34	N/A
»	Factory configured - do not alter	JP3	N/A
»	Factory configured - do not alter	JP9	N/A
»	Parity check enabled	JP16	pins 1 & 2 closed
	Parity check disabled	JP16	pins 2 & 3 closed
»	Monitor type select color	JP17	Closed
	Monitor type select monochrome	JP17	Open
»	BIOS type select normal	JP18	pins 1 & 2 closed
	BIOS type select flash	JP18	pins 2 & 3 closed
»	Factory configured - do not alter	JP19	N/A
»	Factory configured - do not alter	JP22	N/A
»	Factory configured - do not alter	JP28	N/A
»	Factory configured - do not alter	JP29	N/A
»	Factory configured - do not alter	JP30	N/A
»	Factory configured - do not alter	JP31	N/A
Note: The location of jumpers JP9, JP28, JP29, JP30 & JP31 are unidentified.

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	NONE	NONE	NONE
4MB	(1) 512K x 36	(1) 512K x 36	NONE	NONE
4MB	(1) 1M x 36	NONE	NONE	NONE
8MB	(1) 1M x 36	(1) 1M x 36	NONE	NONE
8MB	(1) 2M x 36	NONE	NONE	NONE
16MB	(1) 4M x 36	NONE	NONE	NONE
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
32MB	(1) 4M x 36	(1) 4M x 36	NONE	NONE
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
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
96MB	(1) 8M x 36	(1) 8M x 36	(1) 4M x 36	(1) 4M x 36
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
64KB	(4) 8K x 8	(4) 8K x 8	(2) 8K x 8
128KB	(4) 32K x 8	NONE	(2) 8K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(2) 32K x 8
512KB	(4) 128K x 8	NONE	(2) 32K x 8
1MB	(4) 128K x 8	(4) 128K x 8	(2) 128K x 8

CACHE JUMPER CONFIGURATION
Size	JD1	JD2	JT1	JT2	JT3
64KB	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
128KB	1 & 2	1 & 2	2 & 3	1 & 2	1 & 2
256KB	2 & 3	2 & 3	2 & 3	2 & 3	1 & 2
512KB	1 & 2	1 & 2	2 & 3	2 & 3	2 & 3
1MB	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP1	JP2	JP4	JP5	JP6
CXM6 1x	Open	Open	Open	2 & 3	Closed
CXM6 2x	Open	Open	Open	2 & 3	Closed
AM486SX (WT)	Open	Closed	Open	2 & 3	Closed
AM486SX (WB)	Closed	Closed	Open	2 & 3	Closed
SL80486	Open	Closed	Open	1 & 2	Closed
80486SX	Open	Open	Open	2 & 3	Closed
AM486DX (WT)	Open	Closed	Open	2 & 3	Closed
AM486DX (WB)	Closed	Closed	Closed	2 & 3	Closed
CXM7 1x	Open	Open	Open	1 & 2	Closed
CXM7 2x	Open	Open	Open	1 & 2	Closed
80486DX	Open	Open	Open	1 & 2	Closed
80486DX2	Open	Open	Open	1 & 2	Closed
P24C 2x	Open	Closed	Open	1 & 2	Closed
P24C 3x	Open	Closed	Open	1 & 2	Closed
P24D (WT)	Open	Closed	Open	1 & 2	Closed
P24D (WB)	Closed	Closed	Closed	1 & 2	Closed
P24T 2x (WT)	Open	Closed	Open	1 & 2	Open
P24T 2x (WB)	Closed	Closed	Closed	1 & 2	Open
P24T 3x (WT)	Open	Closed	Open	1 & 2	Open
P24T 3x (WB)	Closed	Closed	Closed	1 & 2	Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP7	JP8	JP10	JP11	JP12
CXM6 1x	1 & 2	Closed	Open	Open	Open
CXM6 2x	1 & 2	Closed	Open	Open	Closed
AM486SX (WT)	Open	Open	Open	Open	Open
AM486SX (WB)	Open	Open	Open	Open	Open
SL80486	Open	Open	Open	1 & 2	Open
80486SX	Open	Open	Open	Open	Open
AM486DX (WT)	Open	Open	Open	1 & 2	Open
AM486DX (WB)	Open	Open	Open	1 & 2	Open
CXM7 1x	1 & 2	Closed	Open	1 & 2	Open
CXM7 2x	1 & 2	Closed	Open	1 & 2	Closed
80486DX	Open	Open	Open	1 & 2	Open
80486DX2	Open	Open	Open	1 & 2	Open
P24C 2x	Open	Open	1 & 2	2 & 3	Open
P24C 3x	Open	Open	Open	2 & 3	Open
P24D (WT)	2 & 3	Open	Open	1 & 2	Open
P24D (WB)	2 & 3	Open	Open	1 & 2	Open
P24T 2x (WT)	Open	Open	1 & 2	2 & 3	Open
P24T 2x (WB)	Open	Open	1 & 2	2 & 3	Open
P24T 3x (WT)	Open	Open	Open	2 & 3	Open
P24T 3x (WB)	Open	Open	Open	2 & 3	Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP13	JP23	JP24	JP41	JP42
CXM6 1x	Closed	Closed	Closed	Open	Open
CXM6 2x	Closed	Closed	Closed	Open	Open
AM486SX (WT)	Open	Open	Open	2 & 3	2 & 3
AM486SX (WB)	Open	Open	Open	2 & 3	2 & 3
SL80486	Open	Open	Open	Open	Open
80486SX	Open	Closed	Closed	Open	Open
AM486DX (WT)	Open	Open	Open	2 & 3	2 & 3
AM486DX (WB)	Open	Open	Open	2 & 3	2 & 3
CXM7 1x	Closed	Closed	Closed	Open	Open
CXM7 2x	Closed	Closed	Closed	Open	Open
80486DX	Open	Closed	Closed	Open	Open
80486DX2	Open	Closed	Closed	Open	Open
P24C 2x	Open	Open	Open	Open	Open
P24C 3x	Open	Open	Open	Open	Open
P24D (WT)	Open	Open	Open	1 & 2	1 & 2
P24D (WB)	Open	Open	Open	1 & 2	1 & 2
P24T 2x (WT)	Open	Open	Open	Open	Open
P24T 2x (WB)	Open	Open	Open	Open	Open
P24T 3x (WT)	Open	Open	Open	Open	Open
P24T 3x (WB)	Open	Open	Open	Open	Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	RN1	RN2
CXM6 1x	Open	Open
CXM6 2x	Open	Open
AM486SX (WT)	Open	1 & 2, 3 & 4, 5 & 6, 7 & 8
AM486SX (WB)	Open	1 & 2, 3 & 4, 5 & 6, 7 & 8
SL80486	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
80486SX	Open	Open
AM486DX (WT)	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
AM486DX (WB)	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
CXM7 1x	1 & 2, 3 & 4, 5 & 6, 7 & 8	Open
CXM7 2x	1 & 2, 3 & 4, 5 & 6, 7 & 8	Open
80486DX	1 & 2, 3 & 4, 5 & 6, 7 & 8	Open
80486DX2	1 & 2, 3 & 4, 5 & 6, 7 & 8	Open
P24C 2x	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
P24C 3x	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
P24D (WT)	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
P24D (WB)	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
P24T 2x (WT)	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
P24T 2x (WB)	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
P24T 3x (WT)	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
P24T 3x (WB)	1 & 2, 3 & 4, 5 & 6, 7 & 8	1 & 2, 3 & 4, 5 & 6, 7 & 8
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed	JP25	JP26	JP27
25MHz	Closed	Open	Closed
33MHZ	Open	Open	Closed
40MHz	Closed	Closed	Open
50iMHz	Closed	Open	Closed
50MHz	Open	Closed	Open
66iMHz	Open	Open	Closed

CPU VOLTAGE CONFIGURATION
Voltage	CN6
3.3v	Open
5v	pins 1 & 2, 3 & 4, 5 & 6 closed

VESA WAIT STATE CONFIGURATION
Wait states	JP20
0 wait states	pins 1 & 2 closed
1 wait state	pins 2 & 3 closed

BUS SPEED CONFIGURATION
CPU speed	JP21
<= 33MHz	pins 1 & 2 closed
> 33MHz	pins 2 & 3 closed