ECA 34M33 Motherboard Settings and Configuration

EFA CORPORATION

ECA 34M33

Processor
80386DX/80486SX/80486DX
Processor Speed
16/20/25/33/40/50MHz
Chip Set
UMC
Max. Onboard DRAM
32MB
Cache
64/128/256KB
BIOS
AMI
Dimensions
330mm x 218mm
I/O Options
None
NPU Options
4167

CONNECTIONS
Purpose
Location
Purpose
Location
Power LED & keylock
J1
Turbo LED
J4
Speaker
J2
Turbo switch
J5
Reset switch
J3
External battery
J17

USER CONFIGURABLE SETTINGS
Function
Jumper/Switch
Position
»
Monitor type select color
J16
Open

Monitor type select monochrome
J16
Closed
»
Factory configured - do not alter
J21
N/A
»
BIOS type select 27512
J22
pins 2 & 3 closed

BIOS type select 271024
J22
pins 1 & 2 closed
»
CPU type select 80486DX
J23
pins 2 & 3 closed

CPU type select 80486SX
J23
pins 1 & 2 closed

CPU type select 80386DX
J23
Open
»
Factory configured - do not alter
S2/5
N/A
»
Factory configured - do not alter
S2/8
N/A

DRAM CONFIGURATION
Size
Bank 0
Bank 1
1MB
(4) 256K x 9
NONE
2MB
(4) 256K x 9
(4) 256K x 9
4MB
(4) 1M x 9
NONE
5MB
(4) 256K x 9
(4) 1M x 9
8MB
(4) 1M x 9
(4) 1M x 9
16MB
(4) 4M x 9
NONE
20MB
(4) 1M x 9
(4) 4M x 9
32MB
(4) 4M x 9
(4) 4M x 9

CACHE CONFIGURATION
Size
Bank 0
Bank 1
TAG (U22)
TAG (U24)
64KB
(4) 8K x 8
(4) 8K x 8
(1) 32K x 8
(1) 16K x 4
128KB
(4) 32K x 8
NONE
(1) 32K x 8
(1) 16K x 4
256KB
(4) 32K x 8
(4) 32K x 8
(1) 32K x 8
(1) 16K x 4

CACHE JUMPER CONFIGURATION
Size
J7
J8
J9
J10
J11
J12
J13
J14
J15
64KB
2 & 3
2 & 3
Open
Open
Open
Open
Closed
1 & 2
Open
128KB
1 & 2
2 & 3
Open
Closed
Open
Closed
Closed
2 & 3
1 & 2
256KB
1 & 2
1 & 2
Closed
Closed
Closed
Closed
Closed
1 & 2
2 & 3
Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (A)
Type
S3/1
S3/2
S3/3
S3/4
80386DX-16
Off
Off
On
On
80386DX-20
Off
Off
On
Off
80386DX-33
On
On
Off
On
80386DX-40
On
On
On
On
80486SX-20
On
Off
On
Off
80486DX-25
On
Off
Off
Off
80486DX-33
On
Off
Off
On
80486DX-50
Off
On
Off
Off
Note: All CPU configurations (Tables A, B & Jumper J23) must be set for proper operation.

CPU TYPE CONFIGURATION (B)
Type
S1/1
S1/2
S1/3
S1/4
S2/1
80386DX
On
On
Off
Off
On
80486SX
Off
Off
On
On
Off
80486DX
On
On
Off
Off
Off

CPU TYPE CONFIGURATION (B CON’T)
Type
S2/2
S2/3
S2/4
S2/6
S2/7
80386DX
On
On
On
Off
Off
80486SX
Off
Off
Off
On
On
80486DX
Off
Off
Off
On
On

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ECA 34M33 Motherboard Settings and Configuration

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Processor	80386DX/80486SX/80486DX
Processor Speed	16/20/25/33/40/50MHz
Chip Set	UMC
Max. Onboard DRAM	32MB
Cache	64/128/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	J1	Turbo LED	J4
Speaker	J2	Turbo switch	J5
Reset switch	J3	External battery	J17

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Monitor type select color	J16	Open
	Monitor type select monochrome	J16	Closed
»	Factory configured - do not alter	J21	N/A
»	BIOS type select 27512	J22	pins 2 & 3 closed
	BIOS type select 271024	J22	pins 1 & 2 closed
»	CPU type select 80486DX	J23	pins 2 & 3 closed
	CPU type select 80486SX	J23	pins 1 & 2 closed
	CPU type select 80386DX	J23	Open
»	Factory configured - do not alter	S2/5	N/A
»	Factory configured - do not alter	S2/8	N/A

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
5MB	(4) 256K x 9	(4) 1M x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	NONE
20MB	(4) 1M x 9	(4) 4M x 9
32MB	(4) 4M x 9	(4) 4M x 9

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG (U22)	TAG (U24)
64KB	(4) 8K x 8	(4) 8K x 8	(1) 32K x 8	(1) 16K x 4
128KB	(4) 32K x 8	NONE	(1) 32K x 8	(1) 16K x 4
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8	(1) 16K x 4

CACHE JUMPER CONFIGURATION
Size	J7	J8	J9	J10	J11	J12	J13	J14	J15
64KB	2 & 3	2 & 3	Open	Open	Open	Open	Closed	1 & 2	Open
128KB	1 & 2	2 & 3	Open	Closed	Open	Closed	Closed	2 & 3	1 & 2
256KB	1 & 2	1 & 2	Closed	Closed	Closed	Closed	Closed	1 & 2	2 & 3
Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (A)
Type	S3/1	S3/2	S3/3	S3/4
80386DX-16	Off	Off	On	On
80386DX-20	Off	Off	On	Off
80386DX-33	On	On	Off	On
80386DX-40	On	On	On	On
80486SX-20	On	Off	On	Off
80486DX-25	On	Off	Off	Off
80486DX-33	On	Off	Off	On
80486DX-50	Off	On	Off	Off
Note: All CPU configurations (Tables A, B & Jumper J23) must be set for proper operation.

CPU TYPE CONFIGURATION (B)
Type	S1/1	S1/2	S1/3	S1/4	S2/1
80386DX	On	On	Off	Off	On
80486SX	Off	Off	On	On	Off
80486DX	On	On	Off	Off	Off

CPU TYPE CONFIGURATION (B CON’T)
Type	S2/2	S2/3	S2/4	S2/6	S2/7
80386DX	On	On	On	Off	Off
80486SX	Off	Off	Off	On	On
80486DX	Off	Off	Off	On	On