U 6921 Motherboard Settings and Configuration

ATC/UNITRON COMPUTERS & COMPUTER PARTS

U 6921

Processor
umc486/(SL)AM486SX/80486SX/SL80486SX/CXM7/AM486DX/(SL)AM486DX/80486DX/SL80486DX/AM486DX2/(SL)AM486D2/80486DX2/SL80486DX2/ AM486DX4/(SL)486DX4/80486DX4/SL80486DX4/CXM9/P24D/P24T
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set
SIS
Max. Onboard DRAM
128MB
Cache
128/256/512KB
BIOS
Award
Dimensions
220mm x 220mm
I/O Options
32-bit PCI slots (3), green PC connector, IDE interfaces (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
External battery
JP1
Turbo LED
JP38
IDE interface 2
JP7
Reset switch
JP39
IDE interface 1
JP8
Turbo switch
JP40
Speaker
JP28
Power LED & keylock
JP41
IDE interface LED
JP32
Green PC LED
LED1
Green PC connector
JP36
32-bit PCI slots
PC1 - PC3

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Monitor type select color
JP6
Closed

Monitor type select monochrome
JP6
Open
»
Factory configured - do not alter
JP14
N/A
»
Factory configured - do not alter
JP15
N/A
»
Flash BIOS EPROM
JP21
Open

Flash BIOS voltage select 12v
JP21
Pins 1 & 2 closed

Flash BIOS voltage select 5v
JP21
Pins 2 & 3 closed

Turbo enabled
JP40
Pins 2 & 3 closed

Turbo disabled
JP40
Pins 1 & 2 closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(1) 256K x 36
None
None
None
2MB
(1) 512K x 36
None
None
None
2MB
(1) 256K x 36
(1) 256K x 36
None
None
3MB
(1) 512K x 36
(1) 256K x 36
None
None
3MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
None
3MB
(1) 256K x 36
(1) 512K x 36
None
None
4MB
(1) 1M x 36
None
None
None
4MB
(1) 512K x 36
(1) 256K x 36
(1) 256K x 36
None
4MB
(1) 512K x 36
(1) 512K x 36
None
None
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
5MB
(1) 1M x 36
(1) 256K x 36
None
None
5MB
(1) 512K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
5MB
(1) 256K x 36
(1) 512K x 36
(1) 512K x 36
None
5MB
(1) 256K x 36
(1) 1M x 36
None
None
6MB
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
None
6MB
(1) 1M x 36
(1) 512K x 36
None
None
6MB
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
None
6MB
(1) 512K x 36
(1) 1M x 36
None
None
7MB
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
7MB
(1) 256K x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
8MB
(1) 2M x 36
None
None
None
8MB
(1) 1M x 36
(1) 512K x 36
(1) 512K x 36
None
8MB
(1) 1M x 36
(1) 1M x 36
None
None
8MB
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
9MB
(1) 2M x 36
(1) 256K x 36
None
None
9MB
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
None
9MB
(1) 256K x 36
(1) 2M x 36
None
None
10MB
(1) 2M x 36
(1) 256K x 36
(1) 256K x 36
None
10MB
(1) 2M x 36
(1) 512K x 36
None
None
10MB
(1) 1M x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
10MB
(1) 512K x 36
(1) 1M x 36
(1) 1M x 36
None

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
10MB
(1) 512K x 36
(1) 2M x 36
None
None
11MB
(1) 2M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
12MB
(1) 2M x 36
(1) 512K x 36
(1) 512K x 36
None
12MB
(1) 2M x 36
(1) 1M x 36
None
None
12MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
None
12MB
(1) 1M x 36
(1) 2M x 36
None
None
13MB
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
14MB
(1) 2M x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
14MB
(1) 512K x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 4M x 36
None
None
None
16MB
(1) 2M x 36
(1) 1M x 36
(1) 1M x 36
None
16MB
(1) 2M x 36
(1) 2M x 36
None
None
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
17MB
(1) 4M x 36
(1) 256K x 36
None
None
17MB
(1) 256K x 36
(1) 2M x 36
(1) 2M x 36
None
17MB
(1) 256K x 36
(1) 4M x 36
None
None
18MB
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
None
18MB
(1) 4M x 36
(1) 512K x 36
None
None
18MB
(1) 512K x 36
(1) 2M x 36
(1) 2M x 36
None
18MB
(1) 512K x 36
(1) 4M x 36
None
None
19MB
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
20MB
(1) 4M x 36
(1) 512K x 36
(1) 512K x 36
None
20MB
(1) 4M x 36
(1) 1M x 36
None
None
20MB
(1) 2M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
20MB
(1) 1M x 36
(1) 2M x 36
(1) 2M x 36
None
20MB
(1) 1M x 36
(1) 4M x 36
None
None
22MB
(1) 4M x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
24MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
None
24MB
(1) 4M x 36
(1) 2M x 36
None
None
24MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
None
24MB
(1) 2M x 36
(1) 4M x 36
None
None
25MB
(1) 256K x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
26MB
(1) 512K x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
28MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
28MB
(1) 1M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
32MB
(1) 8M x 36
None
None
None
32MB
(1) 4M x 36
(1) 2M x 36
(1) 2M x 36
None
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
33MB
(1) 8M x 36
(1) 256K x 36
None
None
33MB
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
None
33MB
(1) 256K x 36
(1) 8M x 36
None
None
34MB
(1) 8M x 36
(1) 256K x 36
(1) 256K x 36
None

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
34MB
(1) 8M x 36
(1) 512K x 36
None
None
34MB
(1) 512K x 36
(1) 4M x 36
(1) 4M x 36
None
34MB
(1) 512K x 36
(1) 8M x 36
None
None
35MB
(1) 8M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
36MB
(1) 8M x 36
(1) 512K x 36
(1) 512K x 36
None
36MB
(1) 8M x 36
(1) 1M x 36
None
None
36MB
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
None
36MB
(1) 1M x 36
(1) 8M x 36
None
None
38MB
(1) 8M x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
40MB
(1) 8M x 36
(1) 1M x 36
(1) 1M x 36
None
40MB
(1) 8M x 36
(1) 2M x 36
None
None
40MB
(1) 4M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
40MB
(1) 2M x 36
(1) 4M x 36
(1) 4M x 36
None
40MB
(1) 2M x 36
(1) 8M x 36
None
None
44MB
(1) 8M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
48MB
(1) 8M x 36
(1) 2M x 36
(1) 2M x 36
None
48MB
(1) 8M x 36
(1) 4M x 36
None
None
48MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
None
48MB
(1) 4M x 36
(1) 8M x 36
None
None
49MB
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
50MB
(1) 512K x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
52MB
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
56MB
(1) 8M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
56MB
(1) 2M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 8M x 36
(1) 4M x 36
(1) 4M x 36
None
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
65MB
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36
None
66MB
(1) 512K x 36
(1) 8M x 36
(1) 8M x 36
None
68MB
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
None
72MB
(1) 2M x 36
(1) 8M x 36
(1) 8M x 36
None
80MB
(1) 8M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
80MB
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
None
96MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
None
97MB
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
98MB
(1) 512K x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
100MB
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
104MB
(1) 2M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
112MB
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
128MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36

CACHE CONFIGURATION
Size
Bank 0
TAG
128KB
(4) 32K x 8
(1) 8K x 8
256KB
(4) 64K x 8
(1) 32K x 8
512KB
(4) 128K x 8
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP9
JP10
128KB
Pins 1 & 2 closed
Pins 1 & 2 closed
256KB
Pins 2 & 3 closed
Pins 1 & 2 closed
512KB
Pins 2 & 3 closed
Pins 2 & 3 closed

CPU TYPE CONFIGURATION
Type
JP11
JP12
JP17
JP18
JP19
UMC486
2 & 3
Open
Open
Open
Open
(SL)AM486SX
2 & 3
2 & 3
Open
2 & 3
1 & 2
804846SX
Open
2 & 3
Open
Open
Open
SL804846SX
Open
2 & 3
Open
Open
Open
CXM7
2 & 3
2 & 3
Open
Open
Open
AM486DX
2 & 3
2 & 3
Open
Open
1 & 2
(SL)AM486DX
2 & 3
2 & 3
Open
2 & 3
1 & 2
80486DX
2 & 3
2 & 3
Open
Open
1 & 2
SL80486DX
2 & 3
2 & 3
Open
Open
Open
AM486DX2
2 & 3
2 & 3
Open
Open
2 & 3
(SL)AM486DX2
2 & 3
2 & 3
Open
2 & 3
1 & 2
80486DX2
2 & 3
2 & 3
Open
Open
Open
SL80486DX2
2 & 3
2 & 3
Open
Open
Open
AM486DX4
2 & 3
2 & 3
Open
Open
1 & 2
(SL)AM486DX4
2 & 3
2 & 3
Open
2 & 3
1 & 2
80486DX4 (2x)
2 & 3
2 & 3
Open
Open
1 & 2
SL80486DX4 (2x)
2 & 3
2 & 3
Open
Open
Open
80486DX4 (2.5x)
2 & 3
2 & 3
Open
Open
1 & 2
SL80486DX4 (2.5x)
2 & 3
2 & 3
Open
Open
Open
80486DX4 (3x)
2 & 3
2 & 3
Open
Open
1 & 2
SL80486DX4 (3x)
2 & 3
2 & 3
Open
Open
Open
CXM9 (2x)
2 & 3
1 & 2
Open
1 & 2
Open
CXM9 (3x)
2 & 3
1 & 2
Open
1 & 2
Open
P24D (WB)
2 & 3
1 & 2
Open
1 & 2
1 & 2
P24D (WT)
2 & 3
1 & 2
Open
1 & 2
2 & 3
P24T (WB)
1 & 2
1 & 2
2 & 3
Open
Open
P24T (WT)
1 & 2
1 & 2
1 & 2
Open
Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP20
JP22
JP23
JP24
JP25
UMC486
Open
Open
Open
Open
Open
(SL)AM486SX
2 & 3
Closed
Open
4 & 5
4 & 5
804846SX
Open
Open
Open
Open
Open
SL804846SX
2 & 3
Closed
Open
1 & 2
4 & 5
CXM7
1 & 2
Closed
Open
Open
2 & 3
AM486DX
Open
Open
Open
Open
4 & 5
(SL)AM486DX
2 & 3
Closed
Open
4 & 5
4 & 5
80486DX
Open
Open
Open
Open
4 & 5
SL80486DX
2 & 3
Closed
Open
1 & 2
4 & 5
AM486DX2
Open
Open
Open
Open
4 & 5
(SL)AM486DX2
2 & 3
Closed
Open
4 & 5
4 & 5
80486DX2
2 & 3
Closed
Open
1 & 2
4 & 5
SL80486DX2
2 & 3
Closed
Open
1 & 2
4 & 5
AM486DX4
Open
Open
Open
Open
4 & 5
(SL)AM486DX4
2 & 3
Closed
Open
4 & 5
4 & 5
80486DX4 (2x)
Open
Open
Open
Open
4 & 5
SL80486DX4 (2x)
2 & 3
Closed
Open
1 & 2
4 & 5
80486DX4 (2.5x)
Open
Open
Open
Open
4 & 5
SL80486DX4 (2.5x)
2 & 3
Closed
Open
1 & 2
4 & 5
80486DX4 (3x)
Open
Open
Open
Open
4 & 5
SL80486DX4 (3x)
2 & 3
Closed
Open
1 & 2
4 & 5
CXM9 (2x)
Open
Closed
Open
2 & 3
2 & 3
CXM9 (3x)
Open
Closed
Open
2 & 3
2 & 3
P24D (WB)
2 & 3
Closed
Open
2 & 3
4 & 5
P24D (WT)
2 & 3
Closed
Open
2 & 3
4 & 5
P24T (WB)
2 & 3
Closed
Open
Open
1 & 2
P24T (WT)
2 & 3
Closed
Open
Open
1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP26
JP27
JP29
JP33
JP34
UMC486
2 & 3
Open
Open
Open
Open
(SL)AM486SX
2 & 3
3 & 4
Open
Open
1 & 2
804846SX
2 & 3
Open
Open
Open
Open
SL804846SX
2 & 3
3 & 4
Open
Open
Open
CXM7
1 & 2, 3 & 4
2 & 3
Open
2 & 3
2 & 3
AM486DX
1 & 2, 3 & 4
3 & 4
Open
Open
Open
(SL)AM486DX
1 & 2, 3 & 4
3 & 4
Open
Open
1 & 2
80486DX
1 & 2, 3 & 4
3 & 4
Open
Open
Open
SL80486DX
1 & 2, 3 & 4
3 & 4
Open
Open
Open
AM486DX2
1 & 2, 3 & 4
3 & 4
Open
Open
Open
(SL)AM486DX2
1 & 2, 3 & 4
3 & 4
Open
Open
1 & 2
80486DX2
1 & 2, 3 & 4
3 & 4
Open
Open
Open
SL80486DX2
1 & 2, 3 & 4
3 & 4
Open
Open
Open
AM486DX4
1 & 2, 3 & 4
3 & 4
Open
Open
Open
(SL)AM486DX4
1 & 2, 3 & 4
3 & 4
Open
Open
1 & 2
80486DX4 (2x)
1 & 2, 3 & 4
3 & 4
2 & 3
Open
Open
SL80486DX4 (2x)
1 & 2, 3 & 4
3 & 4
2 & 3
Open
Open
80486DX4 (2.5x)
1 & 2, 3 & 4
3 & 4
1 & 2
Open
Open
SL80486DX4 (2.5x)
1 & 2, 3 & 4
3 & 4
1 & 2
Open
Open
80486DX4 (3x)
1 & 2, 3 & 4
3 & 4
Open
Open
Open
SL80486DX4 (3x)
1 & 2, 3 & 4
3 & 4
Open
Open
Open
CXM9 (2x)
1 & 2, 3 & 4
1 & 2, 3 & 4
2 & 3
Open
1 & 2
CXM9 (3x)
1 & 2, 3 & 4
1 & 2, 3 & 4
Open
Open
1 & 2
P24D (WB)
1 & 2, 3 & 4
1 & 2, 3 & 4
Open
Open
1 & 2
P24D (WT)
1 & 2, 3 & 4
1 & 2, 3 & 4
Open
Open
1 & 2
P24T (WB)
1 & 2, 3 & 4
3 & 4
Open
1 & 2
1 & 2
P24T (WT)
1 & 2, 3 & 4
3 & 4
Open
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed
JP13
JP16
25MHz
Pins 1 & 2 closed
Open
33MHz
Pins 1 & 2 closed
Pins 1 & 2, 3 & 4 closed
40MHz
Pins 2 & 3 closed
Pins 1 & 2 closed
50iMHz
Pins 1 & 2 closed
Open
50MHz
Pins 2 & 3 closed
Pins 3 & 4 closed
66iMHz
Pins 1 & 2 closed
Pins 1 & 2, 3 & 4 closed
75iMHz
Pins 1 & 2 closed
Open
100iMHz
Pins 1 & 2 closed
Pins 1 & 2, 3 & 4 closed

CPU VOLTAGE CONFIGURATION
Voltage
JP30
JP31
JP35
3.3v
Pins 2 & 3 closed
Pins 5 & 6 closed
Pins 2 & 3 closed
3.45v
Pins 2 & 3 closed
Pins 3 & 4 closed
Pins 2 & 3 closed
4v
Pins 2 & 3 closed
Pins 1 & 2 closed
Pins 2 & 3 closed
5v
Pins 1 & 2 closed
Any setting
Pins 1 & 2 closed

BIOS CONFIGURATION
Setting
JP2
JP3
CMOS memory normal operation
Pins 1 & 2 closed
Pins 1 & 2 closed
CMOS memory clear
Pins 2 & 3 closed
Pins 2 & 3 closed

GREEN PC CONFIGURATION
Setting
JP37
Doze mode
Pins 1 & 2 closed
Suspend mode
Pins 3 & 4 closed
Standby mode
Pins 5 & 6, 7 & 8 closed

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Processor	umc486/(SL)AM486SX/80486SX/SL80486SX/CXM7/AM486DX/(SL)AM486DX/80486DX/SL80486DX/AM486DX2/(SL)AM486D2/80486DX2/SL80486DX2/ AM486DX4/(SL)486DX4/80486DX4/SL80486DX4/CXM9/P24D/P24T
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set	SIS
Max. Onboard DRAM	128MB
Cache	128/256/512KB
BIOS	Award
Dimensions	220mm x 220mm
I/O Options	32-bit PCI slots (3), green PC connector, IDE interfaces (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	JP1	Turbo LED	JP38
IDE interface 2	JP7	Reset switch	JP39
IDE interface 1	JP8	Turbo switch	JP40
Speaker	JP28	Power LED & keylock	JP41
IDE interface LED	JP32	Green PC LED	LED1
Green PC connector	JP36	32-bit PCI slots	PC1 - PC3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP6	Closed
	Monitor type select monochrome	JP6	Open
»	Factory configured - do not alter	JP14	N/A
»	Factory configured - do not alter	JP15	N/A
»	Flash BIOS EPROM	JP21	Open
	Flash BIOS voltage select 12v	JP21	Pins 1 & 2 closed
	Flash BIOS voltage select 5v	JP21	Pins 2 & 3 closed
	Turbo enabled	JP40	Pins 2 & 3 closed
	Turbo disabled	JP40	Pins 1 & 2 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	None	None	None
2MB	(1) 512K x 36	None	None	None
2MB	(1) 256K x 36	(1) 256K x 36	None	None
3MB	(1) 512K x 36	(1) 256K x 36	None	None
3MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	None
3MB	(1) 256K x 36	(1) 512K x 36	None	None
4MB	(1) 1M x 36	None	None	None
4MB	(1) 512K x 36	(1) 256K x 36	(1) 256K x 36	None
4MB	(1) 512K x 36	(1) 512K x 36	None	None
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
5MB	(1) 1M x 36	(1) 256K x 36	None	None
5MB	(1) 512K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
5MB	(1) 256K x 36	(1) 512K x 36	(1) 512K x 36	None
5MB	(1) 256K x 36	(1) 1M x 36	None	None
6MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	None
6MB	(1) 1M x 36	(1) 512K x 36	None	None
6MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	None
6MB	(1) 512K x 36	(1) 1M x 36	None	None
7MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
7MB	(1) 256K x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
8MB	(1) 2M x 36	None	None	None
8MB	(1) 1M x 36	(1) 512K x 36	(1) 512K x 36	None
8MB	(1) 1M x 36	(1) 1M x 36	None	None
8MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
9MB	(1) 2M x 36	(1) 256K x 36	None	None
9MB	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36	None
9MB	(1) 256K x 36	(1) 2M x 36	None	None
10MB	(1) 2M x 36	(1) 256K x 36	(1) 256K x 36	None
10MB	(1) 2M x 36	(1) 512K x 36	None	None
10MB	(1) 1M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
10MB	(1) 512K x 36	(1) 1M x 36	(1) 1M x 36	None

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
10MB	(1) 512K x 36	(1) 2M x 36	None	None
11MB	(1) 2M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
12MB	(1) 2M x 36	(1) 512K x 36	(1) 512K x 36	None
12MB	(1) 2M x 36	(1) 1M x 36	None	None
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	None
12MB	(1) 1M x 36	(1) 2M x 36	None	None
13MB	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
14MB	(1) 2M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
14MB	(1) 512K x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 4M x 36	None	None	None
16MB	(1) 2M x 36	(1) 1M x 36	(1) 1M x 36	None
16MB	(1) 2M x 36	(1) 2M x 36	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
17MB	(1) 4M x 36	(1) 256K x 36	None	None
17MB	(1) 256K x 36	(1) 2M x 36	(1) 2M x 36	None
17MB	(1) 256K x 36	(1) 4M x 36	None	None
18MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	None
18MB	(1) 4M x 36	(1) 512K x 36	None	None
18MB	(1) 512K x 36	(1) 2M x 36	(1) 2M x 36	None
18MB	(1) 512K x 36	(1) 4M x 36	None	None
19MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
20MB	(1) 4M x 36	(1) 512K x 36	(1) 512K x 36	None
20MB	(1) 4M x 36	(1) 1M x 36	None	None
20MB	(1) 2M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
20MB	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36	None
20MB	(1) 1M x 36	(1) 4M x 36	None	None
22MB	(1) 4M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
24MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	None
24MB	(1) 4M x 36	(1) 2M x 36	None	None
24MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	None
24MB	(1) 2M x 36	(1) 4M x 36	None	None
25MB	(1) 256K x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
26MB	(1) 512K x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
28MB	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
32MB	(1) 8M x 36	None	None	None
32MB	(1) 4M x 36	(1) 2M x 36	(1) 2M x 36	None
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
33MB	(1) 8M x 36	(1) 256K x 36	None	None
33MB	(1) 256K x 36	(1) 4M x 36	(1) 4M x 36	None
33MB	(1) 256K x 36	(1) 8M x 36	None	None
34MB	(1) 8M x 36	(1) 256K x 36	(1) 256K x 36	None

CACHE CONFIGURATION
Size	Bank 0	TAG
128KB	(4) 32K x 8	(1) 8K x 8
256KB	(4) 64K x 8	(1) 32K x 8
512KB	(4) 128K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP9	JP10
128KB	Pins 1 & 2 closed	Pins 1 & 2 closed
256KB	Pins 2 & 3 closed	Pins 1 & 2 closed
512KB	Pins 2 & 3 closed	Pins 2 & 3 closed

CPU TYPE CONFIGURATION
Type	JP11	JP12	JP17	JP18	JP19
UMC486	2 & 3	Open	Open	Open	Open
(SL)AM486SX	2 & 3	2 & 3	Open	2 & 3	1 & 2
804846SX	Open	2 & 3	Open	Open	Open
SL804846SX	Open	2 & 3	Open	Open	Open
CXM7	2 & 3	2 & 3	Open	Open	Open
AM486DX	2 & 3	2 & 3	Open	Open	1 & 2
(SL)AM486DX	2 & 3	2 & 3	Open	2 & 3	1 & 2
80486DX	2 & 3	2 & 3	Open	Open	1 & 2
SL80486DX	2 & 3	2 & 3	Open	Open	Open
AM486DX2	2 & 3	2 & 3	Open	Open	2 & 3
(SL)AM486DX2	2 & 3	2 & 3	Open	2 & 3	1 & 2
80486DX2	2 & 3	2 & 3	Open	Open	Open
SL80486DX2	2 & 3	2 & 3	Open	Open	Open
AM486DX4	2 & 3	2 & 3	Open	Open	1 & 2
(SL)AM486DX4	2 & 3	2 & 3	Open	2 & 3	1 & 2
80486DX4 (2x)	2 & 3	2 & 3	Open	Open	1 & 2
SL80486DX4 (2x)	2 & 3	2 & 3	Open	Open	Open
80486DX4 (2.5x)	2 & 3	2 & 3	Open	Open	1 & 2
SL80486DX4 (2.5x)	2 & 3	2 & 3	Open	Open	Open
80486DX4 (3x)	2 & 3	2 & 3	Open	Open	1 & 2
SL80486DX4 (3x)	2 & 3	2 & 3	Open	Open	Open
CXM9 (2x)	2 & 3	1 & 2	Open	1 & 2	Open
CXM9 (3x)	2 & 3	1 & 2	Open	1 & 2	Open
P24D (WB)	2 & 3	1 & 2	Open	1 & 2	1 & 2
P24D (WT)	2 & 3	1 & 2	Open	1 & 2	2 & 3
P24T (WB)	1 & 2	1 & 2	2 & 3	Open	Open
P24T (WT)	1 & 2	1 & 2	1 & 2	Open	Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP20	JP22	JP23	JP24	JP25
UMC486	Open	Open	Open	Open	Open
(SL)AM486SX	2 & 3	Closed	Open	4 & 5	4 & 5
804846SX	Open	Open	Open	Open	Open
SL804846SX	2 & 3	Closed	Open	1 & 2	4 & 5
CXM7	1 & 2	Closed	Open	Open	2 & 3
AM486DX	Open	Open	Open	Open	4 & 5
(SL)AM486DX	2 & 3	Closed	Open	4 & 5	4 & 5
80486DX	Open	Open	Open	Open	4 & 5
SL80486DX	2 & 3	Closed	Open	1 & 2	4 & 5
AM486DX2	Open	Open	Open	Open	4 & 5
(SL)AM486DX2	2 & 3	Closed	Open	4 & 5	4 & 5
80486DX2	2 & 3	Closed	Open	1 & 2	4 & 5
SL80486DX2	2 & 3	Closed	Open	1 & 2	4 & 5
AM486DX4	Open	Open	Open	Open	4 & 5
(SL)AM486DX4	2 & 3	Closed	Open	4 & 5	4 & 5
80486DX4 (2x)	Open	Open	Open	Open	4 & 5
SL80486DX4 (2x)	2 & 3	Closed	Open	1 & 2	4 & 5
80486DX4 (2.5x)	Open	Open	Open	Open	4 & 5
SL80486DX4 (2.5x)	2 & 3	Closed	Open	1 & 2	4 & 5
80486DX4 (3x)	Open	Open	Open	Open	4 & 5
SL80486DX4 (3x)	2 & 3	Closed	Open	1 & 2	4 & 5
CXM9 (2x)	Open	Closed	Open	2 & 3	2 & 3
CXM9 (3x)	Open	Closed	Open	2 & 3	2 & 3
P24D (WB)	2 & 3	Closed	Open	2 & 3	4 & 5
P24D (WT)	2 & 3	Closed	Open	2 & 3	4 & 5
P24T (WB)	2 & 3	Closed	Open	Open	1 & 2
P24T (WT)	2 & 3	Closed	Open	Open	1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP26	JP27	JP29	JP33	JP34
UMC486	2 & 3	Open	Open	Open	Open
(SL)AM486SX	2 & 3	3 & 4	Open	Open	1 & 2
804846SX	2 & 3	Open	Open	Open	Open
SL804846SX	2 & 3	3 & 4	Open	Open	Open
CXM7	1 & 2, 3 & 4	2 & 3	Open	2 & 3	2 & 3
AM486DX	1 & 2, 3 & 4	3 & 4	Open	Open	Open
(SL)AM486DX	1 & 2, 3 & 4	3 & 4	Open	Open	1 & 2
80486DX	1 & 2, 3 & 4	3 & 4	Open	Open	Open
SL80486DX	1 & 2, 3 & 4	3 & 4	Open	Open	Open
AM486DX2	1 & 2, 3 & 4	3 & 4	Open	Open	Open
(SL)AM486DX2	1 & 2, 3 & 4	3 & 4	Open	Open	1 & 2
80486DX2	1 & 2, 3 & 4	3 & 4	Open	Open	Open
SL80486DX2	1 & 2, 3 & 4	3 & 4	Open	Open	Open
AM486DX4	1 & 2, 3 & 4	3 & 4	Open	Open	Open
(SL)AM486DX4	1 & 2, 3 & 4	3 & 4	Open	Open	1 & 2
80486DX4 (2x)	1 & 2, 3 & 4	3 & 4	2 & 3	Open	Open
SL80486DX4 (2x)	1 & 2, 3 & 4	3 & 4	2 & 3	Open	Open
80486DX4 (2.5x)	1 & 2, 3 & 4	3 & 4	1 & 2	Open	Open
SL80486DX4 (2.5x)	1 & 2, 3 & 4	3 & 4	1 & 2	Open	Open
80486DX4 (3x)	1 & 2, 3 & 4	3 & 4	Open	Open	Open
SL80486DX4 (3x)	1 & 2, 3 & 4	3 & 4	Open	Open	Open
CXM9 (2x)	1 & 2, 3 & 4	1 & 2, 3 & 4	2 & 3	Open	1 & 2
CXM9 (3x)	1 & 2, 3 & 4	1 & 2, 3 & 4	Open	Open	1 & 2
P24D (WB)	1 & 2, 3 & 4	1 & 2, 3 & 4	Open	Open	1 & 2
P24D (WT)	1 & 2, 3 & 4	1 & 2, 3 & 4	Open	Open	1 & 2
P24T (WB)	1 & 2, 3 & 4	3 & 4	Open	1 & 2	1 & 2
P24T (WT)	1 & 2, 3 & 4	3 & 4	Open	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed	JP13	JP16
25MHz	Pins 1 & 2 closed	Open
33MHz	Pins 1 & 2 closed	Pins 1 & 2, 3 & 4 closed
40MHz	Pins 2 & 3 closed	Pins 1 & 2 closed
50iMHz	Pins 1 & 2 closed	Open
50MHz	Pins 2 & 3 closed	Pins 3 & 4 closed
66iMHz	Pins 1 & 2 closed	Pins 1 & 2, 3 & 4 closed
75iMHz	Pins 1 & 2 closed	Open
100iMHz	Pins 1 & 2 closed	Pins 1 & 2, 3 & 4 closed

CPU VOLTAGE CONFIGURATION
Voltage	JP30	JP31	JP35
3.3v	Pins 2 & 3 closed	Pins 5 & 6 closed	Pins 2 & 3 closed
3.45v	Pins 2 & 3 closed	Pins 3 & 4 closed	Pins 2 & 3 closed
4v	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
5v	Pins 1 & 2 closed	Any setting	Pins 1 & 2 closed

BIOS CONFIGURATION
Setting	JP2	JP3
CMOS memory normal operation	Pins 1 & 2 closed	Pins 1 & 2 closed
CMOS memory clear	Pins 2 & 3 closed	Pins 2 & 3 closed

GREEN PC CONFIGURATION
Setting	JP37
Doze mode	Pins 1 & 2 closed
Suspend mode	Pins 3 & 4 closed
Standby mode	Pins 5 & 6, 7 & 8 closed