M4P Motherboard Settings and Configuration

MICRONICS COMPUTERS, INC.

M4P

Processor
80486SX/80486DX/80486DX2
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
Intel
Video Chip Set
None
Maximum Onboard Memory
128MB
Maximum Video Memory
None
Cache
128/256KB
BIOS
Unidentified
Dimensions
330mm x 218mm
I/O Options
32-bit PCI slots (3), floppy drive interface, IDE interface, parallel port, serial ports (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Auxiliary keyboard connector
J8
Reset switch
J55
Serial port 1
J18
Speaker
J56
Serial port 2
J21
Power LED & keylock
J57
Parallel port
J22
Turbo LED
J62
IDE interface
J38
Turbo switch
J63
Floppy drive interface
J39
32-bit PCI slots
PC1 - PC3
IDE interface LED
J54

USER CONFIGURABLE SETTINGS
Function
Label
Position

IRQ5 used by PCI
J27
Closed

IRQ5 available for ISA peripheral
J27
Open

IRQ11 used by PCI
J28
Closed

IRQ11 available for ISA peripheral
J28
Open

IRQ15 used by PCI
J29
Closed

IRQ15 available for ISA peripheral
J29
Open

PS/2 mouse enabled
J34
Closed

PS/2 mouse disabled
J34
Open
»
Factory configured - do not alter
J46
Pins 1 & 2 closed
»
Factory configured - do not alter
J47
Pins 2 & 3 closed
»
Factory configured - do not alter
J48
Pins 1 & 2 closed
»
Factory configured - do not alter
J49
Pins 1 & 2 closed
»
Factory configured - do not alter
J50
Pins 1 & 2 closed
»
Factory configured - do not alter
J51
Pins 2 & 3 closed
»
Factory configured - do not alter
J59
Closed
»
Factory configured - do not alter
J60
Open

Cache type select write through
J61
Pins 1 & 2 closed

Cache type select write back
J61
Pins 2 & 3 closed
»
Factory configured - do not alter
J64
Open
»
Factory configured - do not alter
J65
Open
»
Factory configured - do not alter
J66
Open
»
Factory configured - do not alter
J67
Open
»
Factory configured - do not alter
J68
Open
»
Factory configured - do not alter
J69
Open
»
Factory configured - do not alter
J72
Open
»
Factory configured - do not alter
W1
Open

Flash BIOS write protect disabled
W2
Closed

Flash BIOS write protect enabled
W2
Open
»
Monitor type select color
W5
Closed

Monitor type select monochrome
W5
Open

Parallel port IRQ select IRQ7
W8
Pins 1 & 2 closed

Parallel port IRQ select IRQ5
W8
Pins 2 & 3 closed
»
Factory configured - do not alter
W9
Open

Flash BIOS normal operation
W10
Pins 2 & 3 closed

Flash BIOS recovery mode
W10
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
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
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
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

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
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) 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) 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
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) 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) 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

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
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
Bank 1
128KB
(4) 32K x 8
None
256KB
(4) 32K x 8
(4) 32K x 8

CACHE JUMPER CONFIGURATION
Size
J52
J53
J58
128KB
Pins 1 & 2 closed
Pins 2 & 3 closed
Open
256KB
Pins 2 & 3 closed
Pins 1 & 2 closed
Closed

CPU SPEED SELECTION
Speed
J40
J45
25MHz
Open
Pins 2 & 3 closed
33MHz
Closed
Pins 1 & 2 closed
50iMHz
Open
Pins 2 & 3 closed
66iMHz
Closed
Pins 1 & 2 closed

CPU TYPE SELECTION
Type
J71
80486SX
Pins 2 & 3 closed
80486DX
Pins 1 & 2, 3 & 4 closed
80486DX2
Pins 1 & 2, 3 & 4 closed

DMA CHANNEL SELECTION
Channel
W6
W7
1
Pins 1 & 2 closed
Pins 1 & 2 closed
3
Pins 2 & 3 closed
Pins 2 & 3 closed

IDE DMA CHANNEL SELECTION
Channel
W11
W12
6
Pins 1 & 2 closed
Pins 1 & 2 closed
7
Pins 2 & 3 closed
Pins 2 & 3 closed

DIRQ SELECTION
DIRQ
J13
J20
J23
J24
J25
J26
J35
3
Open
Open
Open
Open
Closed
Open
Open
4
Open
Open
Open
Closed
Open
Open
Open
5
Open
Open
Open
Open
Open
Closed
Open
6
Open
Open
Closed
Open
Open
Open
Open
7
Open
Closed
Open
Open
Open
Open
Open
10
Closed
Open
Open
Open
Open
Open
Open
14
Open
Open
Open
Open
Open
Open
Closed

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Processor	80486SX/80486DX/80486DX2
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	128MB
Maximum Video Memory	None
Cache	128/256KB
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	32-bit PCI slots (3), floppy drive interface, IDE interface, parallel port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Auxiliary keyboard connector	J8	Reset switch	J55
Serial port 1	J18	Speaker	J56
Serial port 2	J21	Power LED & keylock	J57
Parallel port	J22	Turbo LED	J62
IDE interface	J38	Turbo switch	J63
Floppy drive interface	J39	32-bit PCI slots	PC1 - PC3
IDE interface LED	J54

USER CONFIGURABLE SETTINGS
Function		Label	Position
	IRQ5 used by PCI	J27	Closed
	IRQ5 available for ISA peripheral	J27	Open
	IRQ11 used by PCI	J28	Closed
	IRQ11 available for ISA peripheral	J28	Open
	IRQ15 used by PCI	J29	Closed
	IRQ15 available for ISA peripheral	J29	Open
	PS/2 mouse enabled	J34	Closed
	PS/2 mouse disabled	J34	Open
»	Factory configured - do not alter	J46	Pins 1 & 2 closed
»	Factory configured - do not alter	J47	Pins 2 & 3 closed
»	Factory configured - do not alter	J48	Pins 1 & 2 closed
»	Factory configured - do not alter	J49	Pins 1 & 2 closed
»	Factory configured - do not alter	J50	Pins 1 & 2 closed
»	Factory configured - do not alter	J51	Pins 2 & 3 closed
»	Factory configured - do not alter	J59	Closed
»	Factory configured - do not alter	J60	Open
	Cache type select write through	J61	Pins 1 & 2 closed
	Cache type select write back	J61	Pins 2 & 3 closed
»	Factory configured - do not alter	J64	Open
»	Factory configured - do not alter	J65	Open
»	Factory configured - do not alter	J66	Open
»	Factory configured - do not alter	J67	Open
»	Factory configured - do not alter	J68	Open
»	Factory configured - do not alter	J69	Open
»	Factory configured - do not alter	J72	Open
»	Factory configured - do not alter	W1	Open
	Flash BIOS write protect disabled	W2	Closed
	Flash BIOS write protect enabled	W2	Open
»	Monitor type select color	W5	Closed
	Monitor type select monochrome	W5	Open
	Parallel port IRQ select IRQ7	W8	Pins 1 & 2 closed
	Parallel port IRQ select IRQ5	W8	Pins 2 & 3 closed
»	Factory configured - do not alter	W9	Open
	Flash BIOS normal operation	W10	Pins 2 & 3 closed
	Flash BIOS recovery mode	W10	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
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
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
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

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
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) 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) 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
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) 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) 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

CACHE CONFIGURATION
Size	Bank 0	Bank 1
128KB	(4) 32K x 8	None
256KB	(4) 32K x 8	(4) 32K x 8

CACHE JUMPER CONFIGURATION
Size	J52	J53	J58
128KB	Pins 1 & 2 closed	Pins 2 & 3 closed	Open
256KB	Pins 2 & 3 closed	Pins 1 & 2 closed	Closed

CPU SPEED SELECTION
Speed	J40	J45
25MHz	Open	Pins 2 & 3 closed
33MHz	Closed	Pins 1 & 2 closed
50iMHz	Open	Pins 2 & 3 closed
66iMHz	Closed	Pins 1 & 2 closed

CPU TYPE SELECTION
Type	J71
80486SX	Pins 2 & 3 closed
80486DX	Pins 1 & 2, 3 & 4 closed
80486DX2	Pins 1 & 2, 3 & 4 closed

DMA CHANNEL SELECTION
Channel	W6	W7
1	Pins 1 & 2 closed	Pins 1 & 2 closed
3	Pins 2 & 3 closed	Pins 2 & 3 closed

IDE DMA CHANNEL SELECTION
Channel	W11	W12
6	Pins 1 & 2 closed	Pins 1 & 2 closed
7	Pins 2 & 3 closed	Pins 2 & 3 closed

DIRQ SELECTION
DIRQ	J13	J20	J23	J24	J25	J26	J35
3	Open	Open	Open	Open	Closed	Open	Open
4	Open	Open	Open	Closed	Open	Open	Open
5	Open	Open	Open	Open	Open	Closed	Open
6	Open	Open	Closed	Open	Open	Open	Open
7	Open	Closed	Open	Open	Open	Open	Open
10	Closed	Open	Open	Open	Open	Open	Open
14	Open	Open	Open	Open	Open	Open	Closed