DESKPRO XL 450/466/560/566/590 Motherboard Settings and Configuration

COMPAQ COMPUTER CORPORATION

DESKPRO XL 450/466/560/566/590

Processor
80486DX2/Pentium (depends on CPU card installed)
Processor Speed
50(internal)/60/66(internal)/66MHz
Chip Set
Compaq
Max. Onboard DRAM
128MB
Cache
None
BIOS
AMI
Dimensions
330mm x 218mm
I/O Options
External CPU card, 32-bit PCI bus slots (2), floppy drive interface, game port, IDE interface, parallel port, SCSI port, audio signal interface, PS/2 mouse port, serial ports (2), CD-ROM interface, audio ports (2), speaker/microphone port
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Audio port 1
AD1
Game port
CN8
Audio port 2
AD2
Chassis fan power
E1
Speaker/microphone connector
CN1
External battery
E3
PS/2 mouse port
CN2
Audio signal interface
E4
Keyboard connector
CN3
IDE interface
E5
Serial port 1
CN4
Floppy drive interface
E6
Serial port 2
CN5
Audio interface
E7
Parallel port
CN6
32-bit PCI bus slots
PC1 & PC2
SCSI port
CN7
External CPU slot
SL1

USER CONFIGURABLE SETTINGS
Function
Jumper/Switch
Position
»
Battery type select internal
E2
pins 2 & 3 closed

Battery type select external
E2
pins 1 & 2 closed
»
Flash BIOS write protect enabled
SW1/1
Off

Flash BIOS write protect disabled
SW1/1
On
»
EISA configuration changes enabled
SW1/2
Off

EISA configuration changes disabled
SW1/2
On
»
Floppy drive read/write enabled
SW1/3
Off

Floppy drive read/write disabled
SW1/3
On
»
EISA configuration diskette boot enabled
SW1/4
Off

EISA configuration diskette boot disabled
SW1/4
On
»
Password enabled
SW1/5
Off

Password enabled
SW1/5
On
»
EISA configuration normal
SW1/6
Off

EISA configuration erasable
SW1/6
On

DRAM CONFIGURATION
Size
Bank 0
Bank 1
2MB
(2) 256K x 36
NONE
4MB
(2) 256K x 36
(2) 256K x 36
4MB
(2) 512K x 36
NONE
6MB
(2) 256K x 36
(2) 512K x 36
8MB
(2) 512K x 36
(2) 512K x 36
8MB
(2) 1M x 36
NONE
10MB
(2) 256K x 36
(2) 1M x 36
12MB
(2) 512K x 36
(2) 1M x 36
16MB
(2) 1M x 36
(2) 1M x 36
18MB
(2) 256K x 36
(2) 2M x 36
20MB
(2) 512K x 36
(2) 2M x 36
24MB
(2) 1M x 36
(2) 2M x 36
32MB
(2) 4M x 36
NONE
34MB
(2) 256K x 36
(2) 4M x 36
36MB
(2) 512K x 36
(2) 4M x 36
40MB
(2) 1M x 36
(2) 4M x 36
64MB
(2) 4M x 36
(2) 4M x 36
64MB
(2) 8M x 36
NONE
66MB
(2) 256K x 36
(2) 8M x 36
68MB
(2) 512K x 36
(2) 8M x 36
72MB
(2) 1M x 36
(2) 8M x 36
96MB
(2) 4M x 36
(2) 8M x 36
128MB
(2) 8M x 36
(2) 8M x 36
Note: If 80486 board is installed, Bank 0 consists of J1 & J2 and Bank 1 consists of J3 & J4. If Pentium board is installed, Bank 0 consists of J1 & J3 and Bank 1 consists of J2 & J4.

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DESKPRO XL 450/466/560/566/590 Motherboard Settings and Configuration

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Processor	80486DX2/Pentium (depends on CPU card installed)
Processor Speed	50(internal)/60/66(internal)/66MHz
Chip Set	Compaq
Max. Onboard DRAM	128MB
Cache	None
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	External CPU card, 32-bit PCI bus slots (2), floppy drive interface, game port, IDE interface, parallel port, SCSI port, audio signal interface, PS/2 mouse port, serial ports (2), CD-ROM interface, audio ports (2), speaker/microphone port
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Audio port 1	AD1	Game port	CN8
Audio port 2	AD2	Chassis fan power	E1
Speaker/microphone connector	CN1	External battery	E3
PS/2 mouse port	CN2	Audio signal interface	E4
Keyboard connector	CN3	IDE interface	E5
Serial port 1	CN4	Floppy drive interface	E6
Serial port 2	CN5	Audio interface	E7
Parallel port	CN6	32-bit PCI bus slots	PC1 & PC2
SCSI port	CN7	External CPU slot	SL1

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Battery type select internal	E2	pins 2 & 3 closed
	Battery type select external	E2	pins 1 & 2 closed
»	Flash BIOS write protect enabled	SW1/1	Off
	Flash BIOS write protect disabled	SW1/1	On
»	EISA configuration changes enabled	SW1/2	Off
	EISA configuration changes disabled	SW1/2	On
»	Floppy drive read/write enabled	SW1/3	Off
	Floppy drive read/write disabled	SW1/3	On
»	EISA configuration diskette boot enabled	SW1/4	Off
	EISA configuration diskette boot disabled	SW1/4	On
»	Password enabled	SW1/5	Off
	Password enabled	SW1/5	On
»	EISA configuration normal	SW1/6	Off
	EISA configuration erasable	SW1/6	On

DRAM CONFIGURATION
Size	Bank 0	Bank 1
2MB	(2) 256K x 36	NONE
4MB	(2) 256K x 36	(2) 256K x 36
4MB	(2) 512K x 36	NONE
6MB	(2) 256K x 36	(2) 512K x 36
8MB	(2) 512K x 36	(2) 512K x 36
8MB	(2) 1M x 36	NONE
10MB	(2) 256K x 36	(2) 1M x 36
12MB	(2) 512K x 36	(2) 1M x 36
16MB	(2) 1M x 36	(2) 1M x 36
18MB	(2) 256K x 36	(2) 2M x 36
20MB	(2) 512K x 36	(2) 2M x 36
24MB	(2) 1M x 36	(2) 2M x 36
32MB	(2) 4M x 36	NONE
34MB	(2) 256K x 36	(2) 4M x 36
36MB	(2) 512K x 36	(2) 4M x 36
40MB	(2) 1M x 36	(2) 4M x 36
64MB	(2) 4M x 36	(2) 4M x 36
64MB	(2) 8M x 36	NONE
66MB	(2) 256K x 36	(2) 8M x 36
68MB	(2) 512K x 36	(2) 8M x 36
72MB	(2) 1M x 36	(2) 8M x 36
96MB	(2) 4M x 36	(2) 8M x 36
128MB	(2) 8M x 36	(2) 8M x 36
Note: If 80486 board is installed, Bank 0 consists of J1 & J2 and Bank 1 consists of J3 & J4. If Pentium board is installed, Bank 0 consists of J1 & J3 and Bank 1 consists of J2 & J4.