486F55 Motherboard Settings and Configuration

HOKKINS SYSTEMATION, INC.

486F55

Processor
CX486S/AM486SX/80486SX/CX486S2/AM486SX2/80486SX2/ ODP487/80487SX/CX486DX/80486DX/CX486DX2/AM486DX2/ (SL)AM486DX2(WB)/(SL)AM486DX2(WT)/80486DX2/AM486DX4/ (SL)AM486DX4(WB)/(SL)AM486DX4(WT)/80486DX4/P24D/P24CT/P24C(WB)/P24T
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set
SIS
Video Chip Set
None
Maximum Onboard Memory
256MB
Maximum Video Memory
None
Cache
128/256/512KB
BIOS
Award
Dimensions
254mm x 218mm
I/O Options
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Serial port
CN1
Green PC connector
J3
Serial port
CN2
Turbo LED
J4
Parallel port
CN3
Reset switch
J5
Floppy drive interface
CN4
Power LED & keylock
J6
IDE interface 2
CN5
Speaker
J7
IDE interface 1
CN6
External battery
JP1
IDE interface LED
J1
32-bit PCI slots
PC1 - PC3
Turbo switch
J2

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
JP2
Pins 1 & 2 closed

CMOS memory clear
JP2
Pins 2 & 3 closed

BIOS type select EPROM
JP3
Open

Flash BIOS type select 12v
JP3
Pins 1 & 2, 4 & 5 closed

Flash BIOS type select 5v
JP3
Pins 2 & 3, 4 & 5 closed
»
Parallel port IRQ select IRQ7
JP6
Pins 1 & 2 closed

Parallel port IRQ select IRQ5
JP6
Pins 2 & 3 closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
4MB
None
(1) 512K x 36
None
(1) 512K x 36
4MB
(1) 512K x 36
None
(1) 512K x 36
None
4MB
(1) 512K x 36
None
None
(1) 512K x 36
4MB
None
(1) 512K x 36
None
(1) 512K x 36
4MB
(1) 256K x 36
(1) 256K x 36
None
(1) 512K x 36
4MB
None
(1) 512K 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
10MB
(1) 2M x 36
None
None
(1) 512K x 36
10MB
(1) 512K x 36
None
None
(1) 2M x 36
10MB
None
(1) 2M x 36
None
(1) 512K x 36
10MB
None
(1) 512K x 36
None
(1) 2M x 36
10MB
(1) 1M x 36
(1) 1M x 36
None
(1) 512K x 36
10MB
(1) 256K x 36
(1) 256K x 36
None
(1) 2M x 36
13MB
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
None
(1) 2M x 36
None
(1) 2M x 36
16MB
(1) 2M x 36
None
(1) 2M x 36
None

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
16MB
(1) 2M x 36
None
None
(1) 2M x 36
16MB
None
(1) 2M x 36
None
(1) 2M x 36
16MB
(1) 1M x 36
(1) 1M x 36
None
(1) 2M x 36
16MB
None
(1) 2M x 36
(1) 1M x 36
(1) 1M x 36
19MB
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
28MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
34MB
(1) 8M x 36
None
None
(1) 512K x 36
34MB
(1) 512K x 36
None
None
(1) 8M x 36
34MB
None
(1) 8M x 36
None
(1) 512K x 36
34MB
None
(1) 512K x 36
None
(1) 8M x 36
34MB
(1) 4M x 36
(1) 4M x 36
None
(1) 512K x 36
34MB
(1) 256K x 36
(1) 256K x 36
None
(1) 8M x 36
40MB
(1) 8M x 36
None
None
(1) 2M x 36
40MB
(1) 2M x 36
None
None
(1) 8M x 36
40MB
None
(1) 8M x 36
None
(1) 2M x 36
40MB
None
(1) 2M x 36
None
(1) 8M x 36
40MB
(1) 4M x 36
(1) 4M x 36
None
(1) 2M x 36
40MB
(1) 1M x 36
(1) 1M x 36
None
(1) 8M 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
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 8M x 36
None
(1) 8M x 36
None
64MB
(1) 8M x 36
None
None
(1) 8M x 36
64MB
None
(1) 8M x 36
None
(1) 8M x 36
64MB
(1) 4M x 36
(1) 4M x 36
None
(1) 8M x 36
64MB
None
(1) 8M x 36
(1) 4M x 36
(1) 4M x 36
67MB
(1) 16M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
76MB
(1) 16M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
112MB
(1) 16M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
130MB
(1) 16M x 36
(1) 16M x 36
None
(1) 512K x 36
130MB
(1) 32M x 36
None
None
(1) 512K x 36
130MB
(1) 512K x 36
None
None
(1) 32M x 36
130MB
None
(1) 32M x 36
None
(1) 512K x 36
130MB
None
(1) 512K x 36
None
(1) 32M x 36
130MB
(1) 256K x 36
(1) 256K x 36
None
(1) 32M x 36
136MB
(1) 16M x 36
(1) 16M x 36
None
(1) 2M x 36
136MB
(1) 32M x 36
None
None
(1) 2M x 36
136MB
(1) 2M x 36
None
None
(1) 32M x 36
136MB
None
(1) 32M x 36
None
(1) 2M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
136MB
None
(1) 2M x 36
None
(1) 32M x 36
136MB
(1) 1M x 36
(1) 1M x 36
None
(1) 32M x 36
160MB
(1) 16M x 36
(1) 16M x 36
None
(1) 8M x 36
160MB
None
(1) 8M x 36
None
(1) 32M x 36
160MB
(1) 32M x 36
None
None
(1) 8M x 36
160MB
None
(1) 32M x 36
None
(1) 8M x 36
160MB
None
(1) 8M x 36
None
(1) 32M x 36
160MB
(1) 4M x 36
(1) 4M x 36
None
(1) 32M x 36
193MB
(1) 256K x 36
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
196MB
(1) 1M x 36
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
208MB
(1) 4M x 36
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
256MB
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
256MB
(1) 16M x 36
(1) 16M x 36
None
(1) 32M x 36
256MB
(1) 32M x 36
None
(1) 32M x 36
None
256MB
(1) 32M x 36
None
None
(1) 32M x 36
256MB
None
(1) 32M x 36
None
(1) 32M x 36
256MB
None
(1) 32M x 36
(1) 16M x 36
(1) 16M 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) 64K x 8
None
(1) 16K/32K x 8
256KB (B)
(4) 32K x 8
(4) 32K x 8
(1) 16K/32K x 8
512KB
(4) 128K x 8
None
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP15
JP16
JP20
128KB
Pins 1 & 2 closed
Pins 1 & 2 closed
Pins 2 & 3 closed
256KB (A)
Pins 1 & 2 closed
Pins 2 & 3 closed
Pins 2 & 3 closed
256KB (B)
Pins 1 & 2 closed
Pins 2 & 3 closed
Pins 1 & 2 closed
512KB
Pins 2 & 3 closed
Pins 2 & 3 closed
Pins 2 & 3 closed

CPU SPEED SELECTION
Speed
JP22
JP23
JP24
25MHz
Open
Open
Closed
33MHz
Closed
Closed
Closed
40MHz
Open
Closed
Closed
50iMHz
Open
Open
Closed
50MHz
Closed
Open
Open
66iMHz
Closed
Closed
Closed
75iMHz
Open
Open
Closed
100iMHz
Closed
Closed
Closed

CPU TYPE SELECTION
Type
JP8
JP9
JP10
JP11
CX486S
Open
1 & 2, 5 & 6
2 & 3, 5 & 6, 7 & 8
1 & 2, 4 & 5, 6 & 7
AM486SX
Open
1 & 2, 4 & 5
2 & 3, 4 & 5, 6 & 7
3 & 4, 5 & 6
80486SX
Open
1 & 2, 4 & 5
2 & 3, 4 & 5, 6 & 7
3 & 4, 5 & 6
CX486S2
Open
1 & 2, 5 & 6
2 & 3, 5 & 6, 7 & 8
4 & 5, 6 & 7
AM486SX2
Open
1 & 2, 4 & 5
2 & 3, 4 & 5, 6 & 7
3 & 4, 5 & 6
80486SX2
Open
1 & 2, 4 & 5
2 & 3, 4 & 5, 6 & 7
3 & 4, 5 & 6
ODP487
Open
1 & 2, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
80487SX
Open
1 & 2, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
CX486DX
Open
1 & 2, 5 & 6
1 & 2, 5 & 6, 7 & 8
4 & 5, 6 & 7
80486DX
Open
1 & 2, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
CX486DX2
Open
1 & 2, 5 & 6
1 & 2, 5 & 6, 7 & 8
4 & 5, 6 & 7
AM486DX2
Open
1 & 2, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
(SL)AM486DX2 (WB)
2 & 3
2 & 3, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6
(SL)AM486DX2 (WT)
2 & 3
2 & 3, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
80486DX2
Open
1 & 2, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
AM486DX4
Open
1 & 2, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6
(SL)AM486DX4 (WB)
Open
2 & 3, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6
(SL)AM486DX4 (WT)
Open
2 & 3, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
80486DX4
Open
1 & 2, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
P24D
Open
2 & 3, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
P24CT
Open
2 & 3, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
P24C (WB)
Open
2 & 3, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6
P24T
Open
2 & 3, 4 & 5
1 & 2, 4 & 5, 6 & 7
3 & 4, 5 & 6, 7 & 8
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
JP17
JP18
JP19
3.3v (Intel/AMD 3v CPU)
Open
Open
Open
3.6v (Cyrix 3v CPU)
Closed
Open
Open
5v
Open
Closed
Closed

DMA CHANNEL SELECTION
Channel
JP4
JP5
»
1
Pins 1 & 2 closed
Pins 1 & 2 closed

3
Pins 2 & 3 closed
Pins 2 & 3 closed

PCI BUS CLOCK SELECTION
Setting
JP7
JP21
»
PCICLK = CPUCLK
Pins 1 & 2 closed
Pins 2 & 3 closed

PCICLK = 24MHz (for CPU CLK>33MHz)
Pins 2 & 3 closed
Pins 1 & 2 closed

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486F55 Motherboard Settings and Configuration

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Processor	CX486S/AM486SX/80486SX/CX486S2/AM486SX2/80486SX2/ ODP487/80487SX/CX486DX/80486DX/CX486DX2/AM486DX2/ (SL)AM486DX2(WB)/(SL)AM486DX2(WT)/80486DX2/AM486DX4/ (SL)AM486DX4(WB)/(SL)AM486DX4(WT)/80486DX4/P24D/P24CT/P24C(WB)/P24T
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set	SIS
Video Chip Set	None
Maximum Onboard Memory	256MB
Maximum Video Memory	None
Cache	128/256/512KB
BIOS	Award
Dimensions	254mm x 218mm
I/O Options	32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port	CN1	Green PC connector	J3
Serial port	CN2	Turbo LED	J4
Parallel port	CN3	Reset switch	J5
Floppy drive interface	CN4	Power LED & keylock	J6
IDE interface 2	CN5	Speaker	J7
IDE interface 1	CN6	External battery	JP1
IDE interface LED	J1	32-bit PCI slots	PC1 - PC3
Turbo switch	J2

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP2	Pins 1 & 2 closed
	CMOS memory clear	JP2	Pins 2 & 3 closed
	BIOS type select EPROM	JP3	Open
	Flash BIOS type select 12v	JP3	Pins 1 & 2, 4 & 5 closed
	Flash BIOS type select 5v	JP3	Pins 2 & 3, 4 & 5 closed
»	Parallel port IRQ select IRQ7	JP6	Pins 1 & 2 closed
	Parallel port IRQ select IRQ5	JP6	Pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
4MB	None	(1) 512K x 36	None	(1) 512K x 36
4MB	(1) 512K x 36	None	(1) 512K x 36	None
4MB	(1) 512K x 36	None	None	(1) 512K x 36
4MB	None	(1) 512K x 36	None	(1) 512K x 36
4MB	(1) 256K x 36	(1) 256K x 36	None	(1) 512K x 36
4MB	None	(1) 512K 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
10MB	(1) 2M x 36	None	None	(1) 512K x 36
10MB	(1) 512K x 36	None	None	(1) 2M x 36
10MB	None	(1) 2M x 36	None	(1) 512K x 36
10MB	None	(1) 512K x 36	None	(1) 2M x 36
10MB	(1) 1M x 36	(1) 1M x 36	None	(1) 512K x 36
10MB	(1) 256K x 36	(1) 256K x 36	None	(1) 2M x 36
13MB	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	None	(1) 2M x 36	None	(1) 2M x 36
16MB	(1) 2M x 36	None	(1) 2M x 36	None

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
16MB	(1) 2M x 36	None	None	(1) 2M x 36
16MB	None	(1) 2M x 36	None	(1) 2M x 36
16MB	(1) 1M x 36	(1) 1M x 36	None	(1) 2M x 36
16MB	None	(1) 2M x 36	(1) 1M x 36	(1) 1M x 36
19MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
34MB	(1) 8M x 36	None	None	(1) 512K x 36
34MB	(1) 512K x 36	None	None	(1) 8M x 36
34MB	None	(1) 8M x 36	None	(1) 512K x 36
34MB	None	(1) 512K x 36	None	(1) 8M x 36
34MB	(1) 4M x 36	(1) 4M x 36	None	(1) 512K x 36
34MB	(1) 256K x 36	(1) 256K x 36	None	(1) 8M x 36
40MB	(1) 8M x 36	None	None	(1) 2M x 36
40MB	(1) 2M x 36	None	None	(1) 8M x 36
40MB	None	(1) 8M x 36	None	(1) 2M x 36
40MB	None	(1) 2M x 36	None	(1) 8M x 36
40MB	(1) 4M x 36	(1) 4M x 36	None	(1) 2M x 36
40MB	(1) 1M x 36	(1) 1M x 36	None	(1) 8M 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	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	None	(1) 8M x 36	None
64MB	(1) 8M x 36	None	None	(1) 8M x 36
64MB	None	(1) 8M x 36	None	(1) 8M x 36
64MB	(1) 4M x 36	(1) 4M x 36	None	(1) 8M x 36
64MB	None	(1) 8M x 36	(1) 4M x 36	(1) 4M x 36
67MB	(1) 16M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
76MB	(1) 16M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
112MB	(1) 16M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
130MB	(1) 16M x 36	(1) 16M x 36	None	(1) 512K x 36
130MB	(1) 32M x 36	None	None	(1) 512K x 36
130MB	(1) 512K x 36	None	None	(1) 32M x 36
130MB	None	(1) 32M x 36	None	(1) 512K x 36
130MB	None	(1) 512K x 36	None	(1) 32M x 36
130MB	(1) 256K x 36	(1) 256K x 36	None	(1) 32M x 36
136MB	(1) 16M x 36	(1) 16M x 36	None	(1) 2M x 36
136MB	(1) 32M x 36	None	None	(1) 2M x 36
136MB	(1) 2M x 36	None	None	(1) 32M x 36
136MB	None	(1) 32M x 36	None	(1) 2M 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) 64K x 8	None	(1) 16K/32K x 8
256KB (B)	(4) 32K x 8	(4) 32K x 8	(1) 16K/32K x 8
512KB	(4) 128K x 8	None	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP15	JP16	JP20
128KB	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
256KB (A)	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
256KB (B)	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
512KB	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

CPU SPEED SELECTION
Speed	JP22	JP23	JP24
25MHz	Open	Open	Closed
33MHz	Closed	Closed	Closed
40MHz	Open	Closed	Closed
50iMHz	Open	Open	Closed
50MHz	Closed	Open	Open
66iMHz	Closed	Closed	Closed
75iMHz	Open	Open	Closed
100iMHz	Closed	Closed	Closed

CPU TYPE SELECTION
Type	JP8	JP9	JP10	JP11
CX486S	Open	1 & 2, 5 & 6	2 & 3, 5 & 6, 7 & 8	1 & 2, 4 & 5, 6 & 7
AM486SX	Open	1 & 2, 4 & 5	2 & 3, 4 & 5, 6 & 7	3 & 4, 5 & 6
80486SX	Open	1 & 2, 4 & 5	2 & 3, 4 & 5, 6 & 7	3 & 4, 5 & 6
CX486S2	Open	1 & 2, 5 & 6	2 & 3, 5 & 6, 7 & 8	4 & 5, 6 & 7
AM486SX2	Open	1 & 2, 4 & 5	2 & 3, 4 & 5, 6 & 7	3 & 4, 5 & 6
80486SX2	Open	1 & 2, 4 & 5	2 & 3, 4 & 5, 6 & 7	3 & 4, 5 & 6
ODP487	Open	1 & 2, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
80487SX	Open	1 & 2, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
CX486DX	Open	1 & 2, 5 & 6	1 & 2, 5 & 6, 7 & 8	4 & 5, 6 & 7
80486DX	Open	1 & 2, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
CX486DX2	Open	1 & 2, 5 & 6	1 & 2, 5 & 6, 7 & 8	4 & 5, 6 & 7
AM486DX2	Open	1 & 2, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
(SL)AM486DX2 (WB)	2 & 3	2 & 3, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6
(SL)AM486DX2 (WT)	2 & 3	2 & 3, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
80486DX2	Open	1 & 2, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
AM486DX4	Open	1 & 2, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6
(SL)AM486DX4 (WB)	Open	2 & 3, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6
(SL)AM486DX4 (WT)	Open	2 & 3, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
80486DX4	Open	1 & 2, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
P24D	Open	2 & 3, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
P24CT	Open	2 & 3, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
P24C (WB)	Open	2 & 3, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6
P24T	Open	2 & 3, 4 & 5	1 & 2, 4 & 5, 6 & 7	3 & 4, 5 & 6, 7 & 8
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage	JP17	JP18	JP19
3.3v (Intel/AMD 3v CPU)	Open	Open	Open
3.6v (Cyrix 3v CPU)	Closed	Open	Open
5v	Open	Closed	Closed

DMA CHANNEL SELECTION
Channel		JP4	JP5
»	1	Pins 1 & 2 closed	Pins 1 & 2 closed
	3	Pins 2 & 3 closed	Pins 2 & 3 closed

PCI BUS CLOCK SELECTION
Setting		JP7	JP21
»	PCICLK = CPUCLK	Pins 1 & 2 closed	Pins 2 & 3 closed
	PCICLK = 24MHz (for CPU CLK>33MHz)	Pins 2 & 3 closed	Pins 1 & 2 closed