AGI 4000B EV-18126 Motherboard Settings and Configuration

EVEREX SYSTEMS, INC.

AGI 4000B EV-18126

Processor
80486DX
Processor Speed
25/33MHz
Chip Set
C & T
Max. Onboard DRAM
8MB
Cache
64/256KB
BIOS
AMI
Dimensions
355mm x 304mm
I/O Options
32-bit external memory card, parallel port, serial ports (2)
NPU Options
4167

CONNECTIONS
Purpose
Location
Purpose
Location
Front panel connector
J4
Serial Port 2
J9
Speaker
J5
Serial Port 1
J10
Parallel Port
J8
32-bit memory card
S1

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Factory configured - do not alter
W1
Open
»
Factory configured - do not alter
W4
Unknown
»
Factory configured - do not alter
W5
Unknown
»
CPU speed select High
W6
Open

CPU speed select slow
W6
pins 1 & 2 closed

CPU speed select switchable via the keyboard
W6
pins 2 & 3 closed
»
Monitor type select color
W7
pins 1 & 2 closed

Monitor type select monochrome
W7
pins 2 & 3 closed
»
Speaker select enabled
W20
Closed

Speaker select disabled
W20
Open

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
W8
W9
1MB
(4) 256K x 9
NONE
NONE
NONE
pins 2 & 3
pins 2 & 3
2MB
(4) 256K x 9
(4) 256K x 9
NONE
NONE
pins 2 & 3
pins 2 & 3
4MB
(4) 1M x 9
NONE
NONE
NONE
pins 1 & 2
pins 1 & 2
6MB
(4) 256K x 9
(4) 256K x 9
(4) 1M x 9
NONE
pins 2 & 3
pins 2 & 3
8MB
(4) 1M x 9
(4) 1M x 9
NONE
NONE
pins 1 & 2
pins 1 & 2
10MB
(4) 1M x 9
(4) 1M x 9
(4) 256K x 9
(4) 256K x 9
pins 1 & 2
pins 1 & 2
12MB
(4) 1M x 9
(4) 1M x 9
(4) 1M x 9
NONE
pins 1 & 2
pins 1 & 2
16MB
(4) 1M x 9
(4) 1M x 9
(4) 1M x 9
(4) 1M x 9
pins 1 & 2
pins 1 & 2
Note:10, 12 and 16MB configurations require the installation of the EV-1896 memory card.
Pins designated should be in the closed position.

DRAM SWITCH CONFIGURATION
Size
SW1/switch 1
SW1/switch 2
SW1/switch 3
SW1/switch 4
1MB
On
Off
On
On
2MB
Off
Off
On
Off
4MB
On
On
On
On
8MB
Off
On
On
Off
10MB
Off
Off
Off
Off
12MB
Off
On
Off
On
16MB
Off
On
Off
Off

CACHE CONFIGURATION
Size
Cache
TAG
64KB
(10) 16K x 4
(1) 16K x 1
256KB
(10) 64K x 4
(1) 64K x 1

CACHE JUMPER CONFIGURATION
Size
W2
W3
64KB
pins 1 & 2 closed
pins 1 & 2 closed
256KB
pins 2 & 3 closed
pins 2 & 3 closed

I/O CONFIGURATION SW2
Port 1
Port 2
LPT
switch 1
switch 2
switch 3
switch 4
COM1
COM2
1
Off
Off
Off
Off
Disabled
Disabled
2
Off
Off
Off
Off
Disabled
Disabled
Disabled
On
On
On
On

I/O CONFIGURATION SW3
Port 1
Port 2
LPT
switch 1
switch 2
switch 3
switch 4
COM1
COM2
1
On
On
On
On
Disabled
Disabled
2
On
On
On
On
Disabled
Disabled
Disabled
Off
Off
Off
Off

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AGI 4000B EV-18126 Motherboard Settings and Configuration

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Processor	80486DX
Processor Speed	25/33MHz
Chip Set	C & T
Max. Onboard DRAM	8MB
Cache	64/256KB
BIOS	AMI
Dimensions	355mm x 304mm
I/O Options	32-bit external memory card, parallel port, serial ports (2)
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Front panel connector	J4	Serial Port 2	J9
Speaker	J5	Serial Port 1	J10
Parallel Port	J8	32-bit memory card	S1

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	W1	Open
»	Factory configured - do not alter	W4	Unknown
»	Factory configured - do not alter	W5	Unknown
»	CPU speed select High	W6	Open
	CPU speed select slow	W6	pins 1 & 2 closed
	CPU speed select switchable via the keyboard	W6	pins 2 & 3 closed
»	Monitor type select color	W7	pins 1 & 2 closed
	Monitor type select monochrome	W7	pins 2 & 3 closed
»	Speaker select enabled	W20	Closed
	Speaker select disabled	W20	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3	W8	W9
1MB	(4) 256K x 9	NONE	NONE	NONE	pins 2 & 3	pins 2 & 3
2MB	(4) 256K x 9	(4) 256K x 9	NONE	NONE	pins 2 & 3	pins 2 & 3
4MB	(4) 1M x 9	NONE	NONE	NONE	pins 1 & 2	pins 1 & 2
6MB	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	NONE	pins 2 & 3	pins 2 & 3
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE	pins 1 & 2	pins 1 & 2
10MB	(4) 1M x 9	(4) 1M x 9	(4) 256K x 9	(4) 256K x 9	pins 1 & 2	pins 1 & 2
12MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	NONE	pins 1 & 2	pins 1 & 2
16MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	pins 1 & 2	pins 1 & 2
Note:10, 12 and 16MB configurations require the installation of the EV-1896 memory card. Pins designated should be in the closed position.

DRAM SWITCH CONFIGURATION
Size	SW1/switch 1	SW1/switch 2	SW1/switch 3	SW1/switch 4
1MB	On	Off	On	On
2MB	Off	Off	On	Off
4MB	On	On	On	On
8MB	Off	On	On	Off
10MB	Off	Off	Off	Off
12MB	Off	On	Off	On
16MB	Off	On	Off	Off

CACHE CONFIGURATION
Size	Cache	TAG
64KB	(10) 16K x 4	(1) 16K x 1
256KB	(10) 64K x 4	(1) 64K x 1

CACHE JUMPER CONFIGURATION
Size	W2	W3
64KB	pins 1 & 2 closed	pins 1 & 2 closed
256KB	pins 2 & 3 closed	pins 2 & 3 closed

I/O CONFIGURATION SW2
Port 1	Port 2	LPT	switch 1	switch 2	switch 3	switch 4
COM1	COM2	1	Off	Off	Off	Off
Disabled	Disabled	2	Off	Off	Off	Off
Disabled	Disabled	Disabled	On	On	On	On

I/O CONFIGURATION SW3
Port 1	Port 2	LPT	switch 1	switch 2	switch 3	switch 4
COM1	COM2	1	On	On	On	On
Disabled	Disabled	2	On	On	On	On
Disabled	Disabled	Disabled	Off	Off	Off	Off