SYSTEMS 4XX/L(V), 4XX/MX(V) OPTIPLEX Motherboard Settings and Configuration

DELL COMPUTER CORPORATION

SYSTEMS 4XX/L(V), 4XX/MX(V) OPTIPLEX

Processor
80486SX/80486DX/80486DX2
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
Headland
Max. Onboard DRAM
64MB
Cache
128KB (on external cache card)
BIOS
Unidentified
Dimensions
330mm x 218mm
I/O Options
32-bit external cache card, 32-bit VESA local bus slot, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
PS/2 mouse port
CN1
Floppy drive interface
CN8
Serial port 1
CN2
IDE interface
CN9
Serial port 2
CN3
External battery
J3
Parallel port
CN4
Control panel connector
J4
VGA port
CN5
IDE interface LED
J5
Video memory upgrade module
CN6
Riser Card
SL1
VGA feature connector
CN7
32-bit VESA Local bus/cache slot
SL2

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
VESA riser card disabled
J1 & J2
Closed

VESA riser card enabled
J1 & J2
Open
»
IDE IRQ enabled
J6
pins 2 & 3 closed

IDE IRQ disabled
J6
pins 1 & 2 closed
»
Factory configured - do not alter
J7
Open
»
PS/2 mouse (IRQ12) enabled
J8
Closed

PS/2 mouse (IRQ12) disabled
J8
Open
»
Factory configured - do not alter
J9
Open
»
Factory configured - do not alter
J10
Open
»
Flash BIOS write protect disabled
J11
Closed

Flash BIOS write protect enabled
J11
Open
»
CPU type select PGA
J12
Closed

CPU type select PQFP
J12
Open
»
CMOS memory normal operation
J13
Closed

CMOS memory clear
J13
Open
»
I/O controller address select 26Eh-26Fh
J14
Closed

I/O controller address select 398h-399h
J14
Open
»
Factory configured - do not alter
J15
Open
»
On board VGA enabled
J16
Closed

On board VGA disabled
J16
Open
»
Factory configured - do not alter
J17
Open
»
Factory configured - do not alter
J18
Open
»
Factory configured - do not alter
J20
Open
»
Factory configured - do not alter
J22
Open

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
4MB
(1) 1M x 36
NONE
NONE
NONE
8MB
(1) 1M x 36
(1) 1M x 36
NONE
NONE
12MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
NONE
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 4M x 36
NONE
NONE
NONE
20MB
(1) 4M x 36
(1) 1M x 36
NONE
NONE
24MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
NONE
28MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
32MB
(1) 4M x 36
(1) 4M x 36
NONE
NONE
36MB
(1) 4M x 36
(1) 4M x 36
(1) 1M x 36
NONE
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) 4M x 36
NONE
52MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 1M x 36
64MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36

VESA CPU SPEED CONFIGURATION
Speed
J19
J21
25MHz
Open
Closed
33MHz
Closed
Open
50iMHz
Open
Closed
66iMHz
Closed
Open

VIDEO MEMORY CONFIGURATION
Size
Bank 0
Bank 1
CN6
512KB
(4) 128K x 8
NONE
NONE
1MB
(4) 128K x 8
(4) 128K x 8
NONE
2MB
(4) 128K x 8
(4) 128K x 8
Memory module
Note: Bank 0 is factory installed and is not configurable. To enable 2MB video memory, install memory module over Bank 1 in CN6 connectors.

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SYSTEMS 4XX/L(V), 4XX/MX(V) OPTIPLEX Motherboard Settings and Configuration

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Processor	80486SX/80486DX/80486DX2
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Headland
Max. Onboard DRAM	64MB
Cache	128KB (on external cache card)
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	32-bit external cache card, 32-bit VESA local bus slot, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse port	CN1	Floppy drive interface	CN8
Serial port 1	CN2	IDE interface	CN9
Serial port 2	CN3	External battery	J3
Parallel port	CN4	Control panel connector	J4
VGA port	CN5	IDE interface LED	J5
Video memory upgrade module	CN6	Riser Card	SL1
VGA feature connector	CN7	32-bit VESA Local bus/cache slot	SL2

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	VESA riser card disabled	J1 & J2	Closed
	VESA riser card enabled	J1 & J2	Open
»	IDE IRQ enabled	J6	pins 2 & 3 closed
	IDE IRQ disabled	J6	pins 1 & 2 closed
»	Factory configured - do not alter	J7	Open
»	PS/2 mouse (IRQ12) enabled	J8	Closed
	PS/2 mouse (IRQ12) disabled	J8	Open
»	Factory configured - do not alter	J9	Open
»	Factory configured - do not alter	J10	Open
»	Flash BIOS write protect disabled	J11	Closed
	Flash BIOS write protect enabled	J11	Open
»	CPU type select PGA	J12	Closed
	CPU type select PQFP	J12	Open
»	CMOS memory normal operation	J13	Closed
	CMOS memory clear	J13	Open
»	I/O controller address select 26Eh-26Fh	J14	Closed
	I/O controller address select 398h-399h	J14	Open
»	Factory configured - do not alter	J15	Open
»	On board VGA enabled	J16	Closed
	On board VGA disabled	J16	Open
»	Factory configured - do not alter	J17	Open
»	Factory configured - do not alter	J18	Open
»	Factory configured - do not alter	J20	Open
»	Factory configured - do not alter	J22	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
4MB	(1) 1M x 36	NONE	NONE	NONE
8MB	(1) 1M x 36	(1) 1M x 36	NONE	NONE
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	NONE
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 4M x 36	NONE	NONE	NONE
20MB	(1) 4M x 36	(1) 1M x 36	NONE	NONE
24MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	NONE
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
32MB	(1) 4M x 36	(1) 4M x 36	NONE	NONE
36MB	(1) 4M x 36	(1) 4M x 36	(1) 1M x 36	NONE
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) 4M x 36	NONE
52MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 1M x 36
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36

VESA CPU SPEED CONFIGURATION
Speed	J19	J21
25MHz	Open	Closed
33MHz	Closed	Open
50iMHz	Open	Closed
66iMHz	Closed	Open

VIDEO MEMORY CONFIGURATION
Size	Bank 0	Bank 1	CN6
512KB	(4) 128K x 8	NONE	NONE
1MB	(4) 128K x 8	(4) 128K x 8	NONE
2MB	(4) 128K x 8	(4) 128K x 8	Memory module
Note: Bank 0 is factory installed and is not configurable. To enable 2MB video memory, install memory module over Bank 1 in CN6 connectors.