P486-ICA (REV. A) Motherboard Settings and Configuration

DIAMOND FLOWER, INC.

P486-ICA (REV. A)

Processor
80486SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
Intel
Max. Onboard DRAM
128MB
Cache
128/256KB
BIOS
Phoenix
Dimensions
330mm x 218mm
I/O Options
32-bit PCI bus slots (3), floppy drive interface, IDE interface, parallel port, PS/2 mouse interface, serial ports (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
PCI 3.3 volt power connector
J3
IDE interface LED
J31
External battery
J4
Reset switch
J32
PS/2 mouse port
J5
Speaker
J33
Serial port 1
J14
Power LED & keylock
J34
Serial port 2
J15
Chassis fan power
J36
Parallel port
J20
Turbo LED
J40
Floppy drive interface
J21
32-bit PCI bus slots
S1, S2 & S3
IDE interface
J22

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Battery type select 3.6 volt
J7
pins 1 & 2 closed

Battery type select 4.5 volt
J7
pins 2 & 3 closed
»
On board I/O controller enabled
J23
pins 2 & 3 closed

On board I/O controller disabled
J23
pins 1 & 2 closed
»
Memory parity enabled
J24
pins 1 & 2 closed

Memory parity disabled
J24
pins 2 & 3 closed
»
Boot block disabled
J25
pins 1 & 2 closed

Boot block enabled
J25
pins 2 & 3 closed
»
IDE DMA disabled
J26
pins 1 & 2 closed

IDE DMA enabled (WD Caviar/Conner CP30254 drives only)
J26
pins 2 & 3 closed
»
CMOS memory normal operation
J27
Open

CMOS memory clear
J27
Closed
»
Factory configured - do not alter
J28
Open
»
DMA Channel 1 enabled
J29 & J30
pins 2 & 3 closed

DMA Channel 1 disabled
J29 & J30
pins 1 & 2 closed
»
L1 write through & L2 write back cache enabled
J37 & J38
pins 1 & 2 closed

L1 write back & L1 write through cache enabled
J37 & J38
pins 2 & 3 closed
»
CPU speed select 33MHz
J39
pins 2 & 3 closed

CPU speed select 25MHz
J39
pins 1 & 2 closed
»
IRQ14 enabled (on board IDE controller installed)
J42
pins 1 & 2 closed

IRQ15 enabled ( 2 IDE controllers installed)
J42
pins 2 & 3 closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
2MB
(1) 256K x 36
(1) 256K x 36
NONE
NONE
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
4MB
(1) 512K x 36
(1) 512K x 36
NONE
NONE
6MB
(1) 256K x 36
(1) 256K x 36
(1) 512K x 36
(1) 512K x 36
6MB
(1) 512K x 36
(1) 512K x 36
(1) 256K x 36
(1) 256K x 36
8MB
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
8MB
(1) 1M x 36
(1) 1M x 36
NONE
NONE
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) 512K x 36
(1) 512K x 36
(1) 1M x 36
(1) 1M x 36
12MB
(1) 1M x 36
(1) 1M x 36
(1) 512K x 36
(1) 512K x 36
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 2M x 36
(1) 2M x 36
NONE
NONE
18MB
(1) 256K x 36
(1) 256K x 36
(1) 2M x 36
(1) 2M x 36
18MB
(1) 2M x 36
(1) 2M x 36
(1) 256K x 36
(1) 256K x 36
20MB
(1) 512K x 36
(1) 512K x 36
(1) 2M x 36
(1) 2M x 36
20MB
(1) 2M x 36
(1) 2M x 36
(1) 512K x 36
(1) 512K x 36
24MB
(1) 1M x 36
(1) 1M x 36
(1) 2M x 36
(1) 2M x 36
24MB
(1) 2M x 36
(1) 2M x 36
(1) 1M x 36
(1) 1M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
32MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
32MB
(1) 4M x 36
(1) 4M x 36
NONE
NONE
34MB
(1) 256K x 36
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
34MB
(1) 4M x 36
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
36MB
(1) 512K x 36
(1) 512K x 36
(1) 4M x 36
(1) 4M x 36
36MB
(1) 4M x 36
(1) 4M x 36
(1) 512K x 36
(1) 512K x 36
40MB
(1) 1M x 36
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
40MB
(1) 4M x 36
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
48MB
(1) 4M x 36
(1) 4M x 36
(1) 2M x 36
(1) 2M x 36
48MB
(1) 2M x 36
(1) 2M 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
(1) 8M x 36
NONE
NONE
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) 512K x 36
(1) 512K x 36
(1) 8M x 36
(1) 8M x 36
68MB
(1) 8M x 36
(1) 8M x 36
(1) 512K x 36
(1) 512K x 36
72MB
(1) 1M x 36
(1) 1M x 36
(1) 8M 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) 2M x 36
(1) 2M x 36
(1) 8M x 36
(1) 8M x 36
80MB
(1) 8M x 36
(1) 8M x 36
(1) 2M x 36
(1) 2M x 36
96MB
(1) 4M x 36
(1) 4M x 36
(1) 8M x 36
(1) 8M 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
128KB
(4) 32K x 8
NONE
(2) 32K x 8
256KB
(4) 32K x 8
(4) 32K x 8
(2) 32K x 8
Note: Bank 0 is factory installed and is not configurable.

CACHE JUMPER CONFIGURATION
Size
J41/ 1 & 2
J41/ 3 & 4
128KB
Open
pins 3 & 4 closed
256KB
pins 1 & 2 closed
Open

CPU VOLTAGE SELECT
Voltage
J35
3.3
pins 1 & 3, 2 & 4 closed
5
pins 3 & 5, 4 & 6 closed

PCI IRQ CONFIGURATION
IRQ
J6
9
pins 1 & 2 closed
10
pins 3 & 4 closed
11
pins 5 & 6 closed
14
pins 7 & 8 closed

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P486-ICA (REV. A) Motherboard Settings and Configuration

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Processor	80486SX/80486DX/80486DX2/Pentium Overdrive
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Intel
Max. Onboard DRAM	128MB
Cache	128/256KB
BIOS	Phoenix
Dimensions	330mm x 218mm
I/O Options	32-bit PCI bus slots (3), floppy drive interface, IDE interface, parallel port, PS/2 mouse interface, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PCI 3.3 volt power connector	J3	IDE interface LED	J31
External battery	J4	Reset switch	J32
PS/2 mouse port	J5	Speaker	J33
Serial port 1	J14	Power LED & keylock	J34
Serial port 2	J15	Chassis fan power	J36
Parallel port	J20	Turbo LED	J40
Floppy drive interface	J21	32-bit PCI bus slots	S1, S2 & S3
IDE interface	J22

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Battery type select 3.6 volt	J7	pins 1 & 2 closed
	Battery type select 4.5 volt	J7	pins 2 & 3 closed
»	On board I/O controller enabled	J23	pins 2 & 3 closed
	On board I/O controller disabled	J23	pins 1 & 2 closed
»	Memory parity enabled	J24	pins 1 & 2 closed
	Memory parity disabled	J24	pins 2 & 3 closed
»	Boot block disabled	J25	pins 1 & 2 closed
	Boot block enabled	J25	pins 2 & 3 closed
»	IDE DMA disabled	J26	pins 1 & 2 closed
	IDE DMA enabled (WD Caviar/Conner CP30254 drives only)	J26	pins 2 & 3 closed
»	CMOS memory normal operation	J27	Open
	CMOS memory clear	J27	Closed
»	Factory configured - do not alter	J28	Open
»	DMA Channel 1 enabled	J29 & J30	pins 2 & 3 closed
	DMA Channel 1 disabled	J29 & J30	pins 1 & 2 closed
»	L1 write through & L2 write back cache enabled	J37 & J38	pins 1 & 2 closed
	L1 write back & L1 write through cache enabled	J37 & J38	pins 2 & 3 closed
»	CPU speed select 33MHz	J39	pins 2 & 3 closed
	CPU speed select 25MHz	J39	pins 1 & 2 closed
»	IRQ14 enabled (on board IDE controller installed)	J42	pins 1 & 2 closed
	IRQ15 enabled ( 2 IDE controllers installed)	J42	pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
2MB	(1) 256K x 36	(1) 256K x 36	NONE	NONE
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
4MB	(1) 512K x 36	(1) 512K x 36	NONE	NONE
6MB	(1) 256K x 36	(1) 256K x 36	(1) 512K x 36	(1) 512K x 36
6MB	(1) 512K x 36	(1) 512K x 36	(1) 256K x 36	(1) 256K x 36
8MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
8MB	(1) 1M x 36	(1) 1M x 36	NONE	NONE
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) 512K x 36	(1) 512K x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 1M x 36	(1) 1M x 36	(1) 512K x 36	(1) 512K x 36
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 2M x 36	(1) 2M x 36	NONE	NONE
18MB	(1) 256K x 36	(1) 256K x 36	(1) 2M x 36	(1) 2M x 36
18MB	(1) 2M x 36	(1) 2M x 36	(1) 256K x 36	(1) 256K x 36
20MB	(1) 512K x 36	(1) 512K x 36	(1) 2M x 36	(1) 2M x 36
20MB	(1) 2M x 36	(1) 2M x 36	(1) 512K x 36	(1) 512K x 36
24MB	(1) 1M x 36	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36
24MB	(1) 2M x 36	(1) 2M x 36	(1) 1M x 36	(1) 1M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
32MB	(1) 4M x 36	(1) 4M x 36	NONE	NONE
34MB	(1) 256K x 36	(1) 256K x 36	(1) 4M x 36	(1) 4M x 36
34MB	(1) 4M x 36	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36
36MB	(1) 512K x 36	(1) 512K x 36	(1) 4M x 36	(1) 4M x 36
36MB	(1) 4M x 36	(1) 4M x 36	(1) 512K x 36	(1) 512K x 36
40MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36
40MB	(1) 4M x 36	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36
48MB	(1) 4M x 36	(1) 4M x 36	(1) 2M x 36	(1) 2M x 36
48MB	(1) 2M x 36	(1) 2M 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	(1) 8M x 36	NONE	NONE
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) 512K x 36	(1) 512K x 36	(1) 8M x 36	(1) 8M x 36
68MB	(1) 8M x 36	(1) 8M x 36	(1) 512K x 36	(1) 512K x 36
72MB	(1) 1M x 36	(1) 1M x 36	(1) 8M 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) 2M x 36	(1) 2M x 36	(1) 8M x 36	(1) 8M x 36
80MB	(1) 8M x 36	(1) 8M x 36	(1) 2M x 36	(1) 2M x 36
96MB	(1) 4M x 36	(1) 4M x 36	(1) 8M x 36	(1) 8M 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
128KB	(4) 32K x 8	NONE	(2) 32K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(2) 32K x 8
Note: Bank 0 is factory installed and is not configurable.

CACHE JUMPER CONFIGURATION
Size	J41/ 1 & 2	J41/ 3 & 4
128KB	Open	pins 3 & 4 closed
256KB	pins 1 & 2 closed	Open

CPU VOLTAGE SELECT
Voltage	J35
3.3	pins 1 & 3, 2 & 4 closed
5	pins 3 & 5, 4 & 6 closed

PCI IRQ CONFIGURATION
IRQ	J6
9	pins 1 & 2 closed
10	pins 3 & 4 closed
11	pins 5 & 6 closed
14	pins 7 & 8 closed