SYSTEM V486/XX SDT REV. 3 Motherboard Settings and Configuration

DELL COMPUTER CORPORATION

SYSTEM V486/XX SDT REV. 3

Processor
80486SX/80486DX/80486DX2
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
LSI
Max. Onboard DRAM
64MB
Cache
None
BIOS
Unidentified
Dimensions
330mm x 218mm
I/O Options
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Parallel port connector
CN1
IDE interface
CN5
Serial port 1
CN2
VGA connector
CN6
Serial port 2
CN2
Fan connector
CN7
PS/2 mouse port
CN3
IDE interface LED
CN8
Floppy drive interface
CN4
External battery connector
CN9

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Mouse connector enabled at IRQ12
J1
Closed

Mouse connector disabled
J1
Open
»
I/O address is 26Eh-26Fh
J2
Closed

I/O address is 398h-399h
J2
Open
»
Factory configured do not alter
J3
Open
»
Factory configured do not alter
J4
Closed
»
Enables password feature
J5
Closed

Disables password feature
J5
Closed
»
Enables on-board VGA controller
J6
Closed

Disables on-board VGA controller
J6
Open
»
Factory configured do not alter
J7
Open
»
Factory configured do not alter
J10
Open
»
Factory configured do not alter
J11
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

CPU SPEED CONFIGURATION
Speed
J8
J9
25MHz
Open
Closed
33MHz
Closed
Open
50iMHz
Open
Closed
66iMHz
Closed
Open

VRAM CONFIGURATION
Size
Bank 0
Bank 1
512K
(4) 256K x 4
None
1MB
(4) 256K x 4
(4) 256K x 4
Note:Bank 0 is factory installed and not configurable.

Headaches Begone! A Systemic Approach To Healing Your Headaches

Don't Let Your Bike Seat Ruin Your Sex Life Book

SYSTEM V486/XX SDT REV. 3 Motherboard Settings and Configuration

Search

My Books

Discover

Processor	80486SX/80486DX/80486DX2
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	LSI
Max. Onboard DRAM	64MB
Cache	None
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Parallel port connector	CN1	IDE interface	CN5
Serial port 1	CN2	VGA connector	CN6
Serial port 2	CN2	Fan connector	CN7
PS/2 mouse port	CN3	IDE interface LED	CN8
Floppy drive interface	CN4	External battery connector	CN9

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Mouse connector enabled at IRQ12	J1	Closed
	Mouse connector disabled	J1	Open
»	I/O address is 26Eh-26Fh	J2	Closed
	I/O address is 398h-399h	J2	Open
»	Factory configured do not alter	J3	Open
»	Factory configured do not alter	J4	Closed
»	Enables password feature	J5	Closed
	Disables password feature	J5	Closed
»	Enables on-board VGA controller	J6	Closed
	Disables on-board VGA controller	J6	Open
»	Factory configured do not alter	J7	Open
»	Factory configured do not alter	J10	Open
»	Factory configured do not alter	J11	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

CPU SPEED CONFIGURATION
Speed	J8	J9
25MHz	Open	Closed
33MHz	Closed	Open
50iMHz	Open	Closed
66iMHz	Closed	Open

VRAM CONFIGURATION
Size	Bank 0	Bank 1
512K	(4) 256K x 4	None
1MB	(4) 256K x 4	(4) 256K x 4
Note:Bank 0 is factory installed and not configurable.