SYSTEM V486/50/66 MDT Motherboard Settings and Configuration

DELL COMPUTER CORPORATION

SYSTEM V486/50/66 MDT

Processor
80486DX/80486DX2/Pentium Overdrive
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
Unidentified
Max. Onboard DRAM
64MB
Cache
128KB
BIOS
Unidentified
Dimensions
330mm x 218mm
I/O Options
Floppy drive interface, IDE interface, parallel port, serial ports (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
External battery
CN1
Floppy drive interface
CN6
IDE interface LED
CN2
Parallel port
CN7
Chassis fan power
CN3
Serial ports
CN8
Video connector
CN4
Mouse connector
CN9
IDE interface
CN5

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Mouse connector enabled (uses IRQ12)
J1
Closed

Mouse connector disabled (disables IRQ12)
J1
Open
»
Factory configured - do not alter
J2
Closed
»
Factory configured - do not alter
J3
Open
»
Factory configured - do not alter
J4
Closed
»
CMOS memory normal operation
J5
Closed

CMOS memory clear
J5
Open
»
On board VGA controller enabled
J6
Closed

On board VGA controller disabled
J6
Open
»
Factory configured - do not alter
J7
Open
»
Factory configured - do not alter
J8
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
J9
J10
25MHz
Closed
N/A
33MHz
N/A
Closed
50iMHz
Open
N/A
66iMHz
N/A
Open

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SYSTEM V486/50/66 MDT Motherboard Settings and Configuration

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Processor	80486DX/80486DX2/Pentium Overdrive
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	64MB
Cache	128KB
BIOS	Unidentified
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interface, parallel port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	CN1	Floppy drive interface	CN6
IDE interface LED	CN2	Parallel port	CN7
Chassis fan power	CN3	Serial ports	CN8
Video connector	CN4	Mouse connector	CN9
IDE interface	CN5

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Mouse connector enabled (uses IRQ12)	J1	Closed
	Mouse connector disabled (disables IRQ12)	J1	Open
»	Factory configured - do not alter	J2	Closed
»	Factory configured - do not alter	J3	Open
»	Factory configured - do not alter	J4	Closed
»	CMOS memory normal operation	J5	Closed
	CMOS memory clear	J5	Open
»	On board VGA controller enabled	J6	Closed
	On board VGA controller disabled	J6	Open
»	Factory configured - do not alter	J7	Open
»	Factory configured - do not alter	J8	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	J9	J10
25MHz	Closed	N/A
33MHz	N/A	Closed
50iMHz	Open	N/A
66iMHz	N/A	Open