486-PIO-2 Motherboard Settings and Configuration

FIRST INTERNATIONAL COMPUTER, INC.

486-PIO-2

Processor
80486SX/CX486DX/SL80486DX/UMCU5SD/UMCU5S/UMCU5SLV/CX484DX2/ (SL)AM486DX2/AM486DX2/SL80486DX2/(SL)AM486DX4/AM486DX4/CXM1/ 80486DX4/P24D/P24S/Pentium Overdrive
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set
VIA
Max. Onboard DRAM
128MB
Cache
128/256/512KB
BIOS
Award
Dimensions
330mm x 218mm
I/O Options
Parallel port, serial ports (2), 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Floppy drive interface
CN1
External battery
J6
Parallel port
CN2
Green PC connector
J7
Serial port 2
CN3
Chassis fan power
J8
Serial port 1
CN4
Power LED & keylock
J9
IDE interface 2
CN5
Speaker
J10
IDE interface 1
CN6
Reset switch
J11
IDE interface LED
J3
Turbo switch
J12
Green PC LED
J4
Turbo LED
J13
Outlet connector
J5
32-bit PCI slots
PC1 - PC4

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Monitor type select monochrome/EGA/VGA
J1
Open

Monitor type select CGA
J1
Closed
»
CMOS memory normal operation
J2
Open

CMOS memory clear
J2
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(1) 256K x 36
NONE
NONE
NONE
1MB
NONE
(1) 256K x 36
NONE
NONE
1MB
NONE
NONE
(1) 256K x 36
NONE
2MB
(1) 256K x 36
(1) 256K x 36
NONE
NONE
2MB
(1) 256K x 36
NONE
(1) 256K x 36
NONE
2MB
NONE
NONE
(1) 256K x 36
(1) 256K x 36
2MB
NONE
(1) 256K x 36
(1) 256K x 36
NONE
3MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
NONE
3MB
NONE
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
3MB
(1) 256K x 36
NONE
(1) 256K x 36
(1) 256K x 36
4MB
(1) 1M x 36
NONE
NONE
NONE
4MB
NONE
(1) 1M x 36
NONE
NONE
4MB
NONE
NONE
(1) 1M x 36
NONE
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
5MB
(1) 256K x 36
(1) 1M x 36
NONE
NONE
5MB
(1) 256K x 36
NONE
(1) 1M x 36
NONE
5MB
(1) 1M x 36
(1) 256K x 36
NONE
NONE
5MB
(1) 1M x 36
NONE
(1) 256K x 36
NONE
5MB
NONE
(1) 256K x 36
(1) 1M x 36
NONE
5MB
NONE
(1) 1M x 36
(1) 256K x 36
NONE
6MB
(1) 256K x 36
(1) 256K x 36
(1) 1M x 36
NONE
6MB
(1) 256K x 36
(1) 1M x 36
(1) 256K x 36
NONE
6MB
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
NONE
6MB
NONE
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
6MB
(1) 1M x 36
NONE
(1) 256K x 36
(1) 256K x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
7MB
(1) 256K x 36
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
7MB
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
8MB
(1) 1M x 36
(1) 1M x 36
NONE
NONE
8MB
(1) 1M x 36
NONE
(1) 1M x 36
NONE
8MB
NONE
NONE
(1) 1M x 36
(1) 1M x 36
8MB
NONE
(1) 1M x 36
(1) 1M x 36
NONE
9MB
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
NONE
9MB
(1) 1M x 36
(1) 256K x 36
(1) 1M x 36
NONE
9MB
(1) 1M x 36
(1) 1M x 36
(1) 256K x 36
NONE
9MB
NONE
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
9MB
(1) 256K x 36
NONE
(1) 1M x 36
(1) 1M x 36
10MB
(1) 256K x 36
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
10MB
(1) 1M x 36
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
12MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
NONE
12MB
NONE
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
12MB
(1) 1M x 36
NONE
(1) 1M x 36
(1) 1M x 36
13MB
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
13MB
(1) 1M x 36
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
16MB
NONE
(1) 4M x 36
NONE
NONE
16MB
NONE
NONE
(1) 4M x 36
NONE
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
17MB
(1) 256K x 36
(1) 4M x 36
NONE
NONE
17MB
(1) 256K x 36
NONE
(1) 4M x 36
NONE
17MB
NONE
(1) 256K x 36
(1) 4M x 36
NONE
17MB
NONE
(1) 4M x 36
(1) 256K x 36
NONE
18MB
(1) 256K x 36
(1) 256K x 36
(1) 4M x 36
NONE
18MB
(1) 256K x 36
(1) 4M x 36
(1) 256K x 36
NONE
18MB
NONE
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
19MB
(1) 256K x 36
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
20MB
(1) 1M x 36
(1) 4M x 36
NONE
NONE
20MB
(1) 1M x 36
NONE
(1) 4M x 36
NONE
20MB
NONE
(1) 1M x 36
(1) 4M x 36
NONE
20MB
NONE
(1) 4M x 36
(1) 1M x 36
NONE
21MB
(1) 256K x 36
(1) 1M x 36
(1) 4M x 36
NONE
21MB
(1) 256K x 36
(1) 4M x 36
(1) 1M x 36
NONE
21MB
(1) 1M x 36
(1) 256K x 36
(1) 4M x 36
NONE
21MB
(1) 1M x 36
(1) 4M x 36
(1) 256K x 36
NONE
22MB
(1) 1M x 36
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
24MB
(1) 1M x 36
(1) 1M x 36
(1) 4M x 36
NONE
24MB
(1) 1M x 36
(1) 4M x 36
(1) 1M x 36
NONE
24MB
NONE
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
25MB
(1) 256K x 36
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
28MB
(1) 1M x 36
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
33MB
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
NONE

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
33MB
NONE
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
33MB
(1) 256K x 36
NONE
(1) 4M x 36
(1) 4M x 36
34MB
(1) 256K x 36
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
36MB
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
NONE
36MB
NONE
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
36MB
(1) 1M x 36
NONE
(1) 4M x 36
(1) 4M x 36
37MB
(1) 256K x 36
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
37MB
(1) 1M x 36
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
40MB
(1) 1M x 36
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
48MB
NONE
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
49MB
(1) 256K 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
64MB
NONE
(1) 8M x 36
(1) 8M x 36
NONE
65MB
(1) 256K x 36
(1) 16M x 36
NONE
NONE
65MB
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36
NONE
66MB
(1) 256K x 36
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36
66MB
(1) 256K x 36
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36
66MB
(1) 8M x 36
(1) 8M x 36
(1) 256K x 36
(1) 256K x 36
68MB
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
NONE
68MB
NONE
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
68MB
(1) 8M x 36
(1) 1M x 36
(1) 8M x 36
NONE
69MB
(1) 256K x 36
(1) 8M x 36
(1) 1M x 36
(1) 8M x 36
69MB
(1) 256K x 36
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
69MB
(1) 1M x 36
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36
69MB
(1) 1M x 36
(1) 8M x 36
(1) 256K x 36
(1) 8M x 36
72MB
(1) 1M x 36
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
72MB
(1) 1M x 36
(1) 8M x 36
(1) 1M x 36
(1) 8M x 36
72MB
(1) 8M x 36
(1) 8M x 36
(1) 1M x 36
(1) 1M x 36
80MB
(1) 8M x 36
(1) 4M x 36
(1) 8M x 36
NONE
80MB
(1) 8M x 36
(1) 8M x 36
(1) 4M x 36
NONE
81MB
(1) 256K x 36
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
81MB
(1) 256K x 36
(1) 8M x 36
(1) 4M x 36
(1) 8M x 36
84MB
(1) 1M x 36
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
84MB
(1) 1M x 36
(1) 8M x 36
(1) 4M x 36
(1) 8M x 36
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
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
JS1
JS2
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
JC1
JC2
JC3
JC4
JC5
80486SX
Open
Open
2 & 3
2 & 3
Open
CX486DX
Open
Open
1 & 2
1 & 2
Open
SL80486DX
Open
2 & 3
1 & 2
1 & 2
Open
UMC U5SD
Open
Open
1 & 2
1 & 2
Open
UMC U5S/U5SLV
Open
Open
2 & 3
2 & 3
Open
CX486DX2
Open
Open
1 & 2
1 & 2
Open
SL AM486DX2
Open
2 & 3
1 & 2
1 & 2
Open
AM486DX2
Closed
Open
1 & 2
1 & 2
Open
SL80486DX2
Open
2 & 3
1 & 2
1 & 2
Open
SL AM486DX4
Open
1 & 2
1 & 2
1 & 2
Open
AM486DX4
Open
Open
1 & 2
1 & 2
Open
CXM1
Open
1 & 2
1 & 2
1 & 2
Open
80486DX4
Open
1 & 2
1 & 2
1 & 2
Open
80486DX4 (2x)
Open
2 & 3
1 & 2
1 & 2
Open
80486DX4 (3x)
Open
1 & 2
1 & 2
1 & 2
Open
P24D (WB)
Open
1 & 2
1 & 2
1 & 2
Open
P24D (WT)
Closed
1 & 2
1 & 2
1 & 2
Open
P24S
Open
2 & 3
1 & 2
1 & 2
Open
P24T (WB)
Open
1 & 2
1 & 2
1 & 2
Closed
P24T (WT)
Closed
1 & 2
1 & 2
1 & 2
Closed
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
RNA
RNC
RNI
80486SX
Not installed
Not installed
pins 1 - 5 closed
CX486DX
Not installed
Installed
Not installed
SL80486DX
Not installed
Not installed
pins 1 - 5 closed
UMC U5SD
Installed
Not installed
Not installed
UMC U5S/U5SLV
Installed
Not installed
Not installed
CX486DX2
Not installed
Installed
Not installed
SL AM486DX2
Not installed
Not installed
pins 6 - 10 closed
AM486DX2
Installed
Not installed
Not installed
SL80486DX2
Not installed
Not installed
pins 1 - 5 closed
SL AM486DX4
Not installed
Not installed
pins 6 - 10 closed
AM486DX4
Installed
Not installed
Not installed
CXM1
Not installed
Not installed
pins 6 - 10 closed
80486DX4
Not installed
Not installed
pins 1 - 5 closed
80486DX4 (2x)
Not installed
Not installed
pins 1 - 5 closed
80486DX4 (3x)
Not installed
Not installed
pins 1 - 5 closed
P24D (WB)
Not installed
Not installed
pins 1 - 5 closed
P24D (WT)
Not installed
Not installed
pins 1 - 5 closed
P24S
Not installed
Not installed
pins 1 - 5 closed
P24T (WB)
Not installed
Not installed
pins 1 - 5 closed
P24T (WT)
Not installed
Not installed
pins 1 - 5 closed

CPU SPEED CONFIGURATION
Speed
JK1
JK2
JK3
JK4
25MHz
pins 2 & 3 closed
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
33MHz
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed
pins 1 & 2 closed
40MHz
pins 1 & 2 closed
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
50iMHz
pins 2 & 3 closed
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
50MHz
pins 2 & 3 closed
pins 1 & 2 closed
pins 2 & 3 closed
pins 2 & 3 closed
66iMHz
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed
pins 1 & 2 closed
75iMHz
pins 2 & 3 closed
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
80iMHz
pins 1 & 2 closed
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
100iMHz
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed
pins 1 & 2 closed

CPU VOLTAGE CONFIGURATION
Voltage
CN3V
JPW1
JPW2
3.3v
Open
1 & 2
Open
3.45v
Open
2 & 3
Open
3.6v
Open
Open
1 & 2
4v
Open
Open
2 & 3
5v
1 & 2, 3 & 4, 13 & 14, 15 & 16

Note: Pins designated should be in the closed position.

DMA CONFIGURATION
DMA
JEPP1
JEPP2
DMA 1
pins 2 & 3 closed
pins 2 & 3 closed
DMA 3
pins 1 & 2 closed
pins 1 & 2 closed

PARALLEL PORT CONFIGURATION
Setting
JH
JG
Output
pins 2 & 3 closed
pins 2 & 3 closed
Input
pins 1 & 2 closed
pins 1 & 2 closed
Bidirectional
pins 2 & 3 closed
Open

KEYBOARD CONFIGURATION
Setting
JX3
RN1
RN16
RN19
Internal controller
pins 1 & 2 closed
Not installed
Installed
Not installed
External controller
pins 2 & 3 closed
Installed
Not installed
Installed

PCI BUS CLOCK CONFIGURATION
DMA
JCK
JT1
<= 33MHz
pins 1 & 2 closed
pins 1 & 2 closed
> 33MHz
pins 2 & 3 closed
pins 2 & 3 closed

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486-PIO-2 Motherboard Settings and Configuration

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Processor	80486SX/CX486DX/SL80486DX/UMCU5SD/UMCU5S/UMCU5SLV/CX484DX2/ (SL)AM486DX2/AM486DX2/SL80486DX2/(SL)AM486DX4/AM486DX4/CXM1/ 80486DX4/P24D/P24S/Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set	VIA
Max. Onboard DRAM	128MB
Cache	128/256/512KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	Parallel port, serial ports (2), 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Floppy drive interface	CN1	External battery	J6
Parallel port	CN2	Green PC connector	J7
Serial port 2	CN3	Chassis fan power	J8
Serial port 1	CN4	Power LED & keylock	J9
IDE interface 2	CN5	Speaker	J10
IDE interface 1	CN6	Reset switch	J11
IDE interface LED	J3	Turbo switch	J12
Green PC LED	J4	Turbo LED	J13
Outlet connector	J5	32-bit PCI slots	PC1 - PC4

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select monochrome/EGA/VGA	J1	Open
	Monitor type select CGA	J1	Closed
»	CMOS memory normal operation	J2	Open
	CMOS memory clear	J2	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	NONE	NONE	NONE
1MB	NONE	(1) 256K x 36	NONE	NONE
1MB	NONE	NONE	(1) 256K x 36	NONE
2MB	(1) 256K x 36	(1) 256K x 36	NONE	NONE
2MB	(1) 256K x 36	NONE	(1) 256K x 36	NONE
2MB	NONE	NONE	(1) 256K x 36	(1) 256K x 36
2MB	NONE	(1) 256K x 36	(1) 256K x 36	NONE
3MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	NONE
3MB	NONE	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
3MB	(1) 256K x 36	NONE	(1) 256K x 36	(1) 256K x 36
4MB	(1) 1M x 36	NONE	NONE	NONE
4MB	NONE	(1) 1M x 36	NONE	NONE
4MB	NONE	NONE	(1) 1M x 36	NONE
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
5MB	(1) 256K x 36	(1) 1M x 36	NONE	NONE
5MB	(1) 256K x 36	NONE	(1) 1M x 36	NONE
5MB	(1) 1M x 36	(1) 256K x 36	NONE	NONE
5MB	(1) 1M x 36	NONE	(1) 256K x 36	NONE
5MB	NONE	(1) 256K x 36	(1) 1M x 36	NONE
5MB	NONE	(1) 1M x 36	(1) 256K x 36	NONE
6MB	(1) 256K x 36	(1) 256K x 36	(1) 1M x 36	NONE
6MB	(1) 256K x 36	(1) 1M x 36	(1) 256K x 36	NONE
6MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	NONE
6MB	NONE	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36
6MB	(1) 1M x 36	NONE	(1) 256K x 36	(1) 256K x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
7MB	(1) 256K x 36	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36
7MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
8MB	(1) 1M x 36	(1) 1M x 36	NONE	NONE
8MB	(1) 1M x 36	NONE	(1) 1M x 36	NONE
8MB	NONE	NONE	(1) 1M x 36	(1) 1M x 36
8MB	NONE	(1) 1M x 36	(1) 1M x 36	NONE
9MB	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36	NONE
9MB	(1) 1M x 36	(1) 256K x 36	(1) 1M x 36	NONE
9MB	(1) 1M x 36	(1) 1M x 36	(1) 256K x 36	NONE
9MB	NONE	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36
9MB	(1) 256K x 36	NONE	(1) 1M x 36	(1) 1M x 36
10MB	(1) 256K x 36	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36
10MB	(1) 1M x 36	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	NONE
12MB	NONE	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 1M x 36	NONE	(1) 1M x 36	(1) 1M x 36
13MB	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
13MB	(1) 1M x 36	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36
16MB	NONE	(1) 4M x 36	NONE	NONE
16MB	NONE	NONE	(1) 4M x 36	NONE
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
17MB	(1) 256K x 36	(1) 4M x 36	NONE	NONE
17MB	(1) 256K x 36	NONE	(1) 4M x 36	NONE
17MB	NONE	(1) 256K x 36	(1) 4M x 36	NONE
17MB	NONE	(1) 4M x 36	(1) 256K x 36	NONE
18MB	(1) 256K x 36	(1) 256K x 36	(1) 4M x 36	NONE
18MB	(1) 256K x 36	(1) 4M x 36	(1) 256K x 36	NONE
18MB	NONE	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36
19MB	(1) 256K x 36	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36
20MB	(1) 1M x 36	(1) 4M x 36	NONE	NONE
20MB	(1) 1M x 36	NONE	(1) 4M x 36	NONE
20MB	NONE	(1) 1M x 36	(1) 4M x 36	NONE
20MB	NONE	(1) 4M x 36	(1) 1M x 36	NONE
21MB	(1) 256K x 36	(1) 1M x 36	(1) 4M x 36	NONE
21MB	(1) 256K x 36	(1) 4M x 36	(1) 1M x 36	NONE
21MB	(1) 1M x 36	(1) 256K x 36	(1) 4M x 36	NONE
21MB	(1) 1M x 36	(1) 4M x 36	(1) 256K x 36	NONE
22MB	(1) 1M x 36	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36
24MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36	NONE
24MB	(1) 1M x 36	(1) 4M x 36	(1) 1M x 36	NONE
24MB	NONE	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36
25MB	(1) 256K x 36	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36
28MB	(1) 1M x 36	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36
33MB	(1) 256K x 36	(1) 4M x 36	(1) 4M 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	JS1	JS2
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	JC1	JC2	JC3	JC4	JC5
80486SX	Open	Open	2 & 3	2 & 3	Open
CX486DX	Open	Open	1 & 2	1 & 2	Open
SL80486DX	Open	2 & 3	1 & 2	1 & 2	Open
UMC U5SD	Open	Open	1 & 2	1 & 2	Open
UMC U5S/U5SLV	Open	Open	2 & 3	2 & 3	Open
CX486DX2	Open	Open	1 & 2	1 & 2	Open
SL AM486DX2	Open	2 & 3	1 & 2	1 & 2	Open
AM486DX2	Closed	Open	1 & 2	1 & 2	Open
SL80486DX2	Open	2 & 3	1 & 2	1 & 2	Open
SL AM486DX4	Open	1 & 2	1 & 2	1 & 2	Open
AM486DX4	Open	Open	1 & 2	1 & 2	Open
CXM1	Open	1 & 2	1 & 2	1 & 2	Open
80486DX4	Open	1 & 2	1 & 2	1 & 2	Open
80486DX4 (2x)	Open	2 & 3	1 & 2	1 & 2	Open
80486DX4 (3x)	Open	1 & 2	1 & 2	1 & 2	Open
P24D (WB)	Open	1 & 2	1 & 2	1 & 2	Open
P24D (WT)	Closed	1 & 2	1 & 2	1 & 2	Open
P24S	Open	2 & 3	1 & 2	1 & 2	Open
P24T (WB)	Open	1 & 2	1 & 2	1 & 2	Closed
P24T (WT)	Closed	1 & 2	1 & 2	1 & 2	Closed
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	RNA	RNC	RNI
80486SX	Not installed	Not installed	pins 1 - 5 closed
CX486DX	Not installed	Installed	Not installed
SL80486DX	Not installed	Not installed	pins 1 - 5 closed
UMC U5SD	Installed	Not installed	Not installed
UMC U5S/U5SLV	Installed	Not installed	Not installed
CX486DX2	Not installed	Installed	Not installed
SL AM486DX2	Not installed	Not installed	pins 6 - 10 closed
AM486DX2	Installed	Not installed	Not installed
SL80486DX2	Not installed	Not installed	pins 1 - 5 closed
SL AM486DX4	Not installed	Not installed	pins 6 - 10 closed
AM486DX4	Installed	Not installed	Not installed
CXM1	Not installed	Not installed	pins 6 - 10 closed
80486DX4	Not installed	Not installed	pins 1 - 5 closed
80486DX4 (2x)	Not installed	Not installed	pins 1 - 5 closed
80486DX4 (3x)	Not installed	Not installed	pins 1 - 5 closed
P24D (WB)	Not installed	Not installed	pins 1 - 5 closed
P24D (WT)	Not installed	Not installed	pins 1 - 5 closed
P24S	Not installed	Not installed	pins 1 - 5 closed
P24T (WB)	Not installed	Not installed	pins 1 - 5 closed
P24T (WT)	Not installed	Not installed	pins 1 - 5 closed

CPU SPEED CONFIGURATION
Speed	JK1	JK2	JK3	JK4
25MHz	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
33MHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
40MHz	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
50iMHz	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
50MHz	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 closed
66iMHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
75iMHz	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
80iMHz	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
100iMHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed

CPU VOLTAGE CONFIGURATION
Voltage	CN3V	JPW1	JPW2
3.3v	Open	1 & 2	Open
3.45v	Open	2 & 3	Open
3.6v	Open	Open	1 & 2
4v	Open	Open	2 & 3
5v	1 & 2, 3 & 4, 13 & 14, 15 & 16
Note: Pins designated should be in the closed position.

DMA CONFIGURATION
DMA	JEPP1	JEPP2
DMA 1	pins 2 & 3 closed	pins 2 & 3 closed
DMA 3	pins 1 & 2 closed	pins 1 & 2 closed

PARALLEL PORT CONFIGURATION
Setting	JH	JG
Output	pins 2 & 3 closed	pins 2 & 3 closed
Input	pins 1 & 2 closed	pins 1 & 2 closed
Bidirectional	pins 2 & 3 closed	Open

KEYBOARD CONFIGURATION
Setting	JX3	RN1	RN16	RN19
Internal controller	pins 1 & 2 closed	Not installed	Installed	Not installed
External controller	pins 2 & 3 closed	Installed	Not installed	Installed

PCI BUS CLOCK CONFIGURATION
DMA	JCK	JT1
<= 33MHz	pins 1 & 2 closed	pins 1 & 2 closed
> 33MHz	pins 2 & 3 closed	pins 2 & 3 closed