DESKPRO EP (2 DIMM) Motherboard Settings and Configuration

COMPAQ COMPUTER CORPORATION

DESKPRO EP (2 DIMM)

Device Type
Mainboard
Processor
Pentium II/Celeron
Processor Speed
233/266/300/333/366/400/450/500MHz
Chip Set
Intel 440BX/PIIX-4E or 440EX/PIIX-4E
Video Chip Set
None
Maximum Onboard Memory
256MB (SDRAM supported)
Maximum Video Memory
None
Cache
512KB (located on Pentium II CPU)
BIOS
Unidentified
Dimensions
305mm x 244mm
I/O Options
32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), serial ports (2), parallel port, PS/2 mouse port, USB connectors (2), ATX power connector, AGP slot
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
AGP slot
AGP
Auxiliary LED
CR114
ATX power connector
ATX
Power switch & LED
P5
Serial port
CN1
Chassis fan power
P8
Serial port
CN2
Wake on LAN connector
P9
Parallel port
CN3
Floppy drive interface
P10
PS/2 mouse port
CN4
IDE interface 1
P20
USB connector
CN5
IDE interface 2
P21
USB connector
CN6
32-bit PCI slots
PC1 – PC4

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
E50
Pins 1 & 2 closed

CMOS memory clear
E50
Pins 2 & 3 closed
»
Password enabled
SW1/1
Off

Password disabled
SW1/1
On

Auxiliary power supply enabled, main power supply disabled
SW1/6
Off

Auxiliary & main power supply enabled
SW1/6
On

DIMM CONFIGURATION
Size
Bank 0
Bank 1
8MB
(1) 1M x 64
None
16MB
(1) 2M x 64
None
16MB
(1) 1M x 64
(1) 1M x 64
24MB
(1) 2M x 64
(1) 1M x 64
32MB
(1) 4M x 64
None
32MB
(1) 2M x 64
(1) 2M x 64
40MB
(1) 4M x 64
(1) 1M x 64
48MB
(1) 4M x 64
(1) 2M x 64
64MB
(1) 8M x 64
None
64MB
(1) 4M x 64
(1) 4M x 64
72MB
(1) 8M x 64
(1) 1M x 64
80MB
(1) 8M x 64
(1) 2M x 64
128MB
(1) 16M x 64
None
128MB
(1) 8M x 64
(1) 8M x 64
136MB
(1) 16M x 64
(1) 1M x 64
144MB
(1) 16M x 64
(1) 2M x 64
160MB
(1) 16M x 64
(1) 4M x 64
256MB
(1) 16M x 64
(1) 16M x 64
Note: Board accepts SDRAM memory.

CACHE CONFIGURATION
Note: 512KB cache is located on the Pentium II CPU.

CPU SPEED SELECTION
CPU speed
Clock speed
Multiplier
SW1/2
SW1/3
SW1/4
SW1/5
233MHz
66MHz
3.5x
Off
Off
On
On
266MHz
66MHz
4x
On
On
Off
On
300MHz
66MHz
4.5x
On
Off
Off
On
333MHz
66MHz
5x
Off
On
Off
On
350MHz
100MHz
3.5x
Off
Off
On
On
400MHz
100MHz
4x
On
On
Off
On
450MHz
100MHz
4.5x
On
Off
Off
On
500MHz
100MHz
5x
Off
On
Off
On

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Device Type	Mainboard
Processor	Pentium II/Celeron
Processor Speed	233/266/300/333/366/400/450/500MHz
Chip Set	Intel 440BX/PIIX-4E or 440EX/PIIX-4E
Video Chip Set	None
Maximum Onboard Memory	256MB (SDRAM supported)
Maximum Video Memory	None
Cache	512KB (located on Pentium II CPU)
BIOS	Unidentified
Dimensions	305mm x 244mm
I/O Options	32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), serial ports (2), parallel port, PS/2 mouse port, USB connectors (2), ATX power connector, AGP slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
AGP slot	AGP	Auxiliary LED	CR114
ATX power connector	ATX	Power switch & LED	P5
Serial port	CN1	Chassis fan power	P8
Serial port	CN2	Wake on LAN connector	P9
Parallel port	CN3	Floppy drive interface	P10
PS/2 mouse port	CN4	IDE interface 1	P20
USB connector	CN5	IDE interface 2	P21
USB connector	CN6	32-bit PCI slots	PC1 – PC4

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	E50	Pins 1 & 2 closed
	CMOS memory clear	E50	Pins 2 & 3 closed
»	Password enabled	SW1/1	Off
	Password disabled	SW1/1	On
	Auxiliary power supply enabled, main power supply disabled	SW1/6	Off
	Auxiliary & main power supply enabled	SW1/6	On

DIMM CONFIGURATION
Size	Bank 0	Bank 1
8MB	(1) 1M x 64	None
16MB	(1) 2M x 64	None
16MB	(1) 1M x 64	(1) 1M x 64
24MB	(1) 2M x 64	(1) 1M x 64
32MB	(1) 4M x 64	None
32MB	(1) 2M x 64	(1) 2M x 64
40MB	(1) 4M x 64	(1) 1M x 64
48MB	(1) 4M x 64	(1) 2M x 64
64MB	(1) 8M x 64	None
64MB	(1) 4M x 64	(1) 4M x 64
72MB	(1) 8M x 64	(1) 1M x 64
80MB	(1) 8M x 64	(1) 2M x 64
128MB	(1) 16M x 64	None
128MB	(1) 8M x 64	(1) 8M x 64
136MB	(1) 16M x 64	(1) 1M x 64
144MB	(1) 16M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 4M x 64
256MB	(1) 16M x 64	(1) 16M x 64
Note: Board accepts SDRAM memory.

CPU SPEED SELECTION
CPU speed	Clock speed	Multiplier	SW1/2	SW1/3	SW1/4	SW1/5
233MHz	66MHz	3.5x	Off	Off	On	On
266MHz	66MHz	4x	On	On	Off	On
300MHz	66MHz	4.5x	On	Off	Off	On
333MHz	66MHz	5x	Off	On	Off	On
350MHz	100MHz	3.5x	Off	Off	On	On
400MHz	100MHz	4x	On	On	Off	On
450MHz	100MHz	4.5x	On	Off	Off	On
500MHz	100MHz	5x	Off	On	Off	On