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PRESARIO CDS 774/972/974/982/992

COMPAQ COMPUTER CORPORATION

PRESARIO CDS 774/972/974/982/992

PRESARIO CDTV 978

Processor

Pentium

Processor Speed

75/90/100MHz

Chip Set

Unidentified

Max. Onboard DRAM

136MB

Cache

256KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, modem port, CD-ROM audio connector, modem audio connector, video memory interface

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

Video memory connector

J4, J12

PS/2 mouse port

CN2

External battery

J5

Keyboard port

CN3

Modem audio connector

J7

Modem port

CN4

CD-ROM audio connector

J10

Modem port

CN5

Serial port 2

J14

Serial port 1

CN6

VGA feature connector

J20

Parallel port

CN7

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

J16

N/A

»

CMOS memory normal operation

P2

Closed

 

CMOS memory clear

P2

Open

»

Password enabled

P3

pins 1 & 2 closed

 

Password disabled

P3

pins 2 & 3 closed

»

CPU core to bus ratio speed select 1.5x

P11

pins 1 & 2 closed

 

CPU core to bus ratio speed select 2x

P11

pins 2 & 3 closed

DRAM CONFIGURATION (75MHZ CPU ONLY)

Size

Bank 0A

Bank 0

Bank 1

20MB

12MB

(2) 1M x 36

NONE

28MB

12MB

(2) 1M x 36

(2) 1M x 36

28MB

12MB

(2) 2M x 36

NONE

36MB

12MB

(2) 1M x 36

(2) 2M x 36

36MB

12MB

(2) 2M x 36

(2) 1M x 36

44MB

12MB

(2) 2M x 36

(2) 2M x 36

44MB

12MB

(2) 4M x 36

NONE

52MB

12MB

(2) 1M x 36

(2) 4M x 36

52MB

12MB

(2) 4M x 36

(2) 1M x 36

60MB

12MB

(2) 2M x 36

(2) 4M x 36

60MB

12MB

(2) 4M x 36

(2) 2M x 36

76MB

12MB

(2) 4M x 36

(2) 4M x 36

76MB

12MB

(2) 8M x 36

NONE

84MB

12MB

(2) 1M x 36

(2) 8M x 36

84MB

12MB

(2) 8M x 36

(2) 1M x 36

92MB

12MB

(2) 2M x 36

(2) 8M x 36

92MB

12MB

(2) 8M x 36

(2) 2M x 36

108MB

12MB

(2) 4M x 36

(2) 8M x 36

108MB

12MB

(2) 8M x 36

(2) 4M x 36

136MB

12MB

(2) 8M x 36

(2) 8M x 36

Note: Bank 0A is factory installed and is not configurable. Only 8MB of the onboard memory is used when 136MB is installed.

DRAM CONFIGURATION (75MHZ & 90MHZ CPU ONLY)

Size

Bank 0A

Bank 0

Bank 1

16MB

8MB

(2) 1M x 36

NONE

24MB

8MB

(2) 1M x 36

(2) 1M x 36

24MB

8MB

(2) 2M x 36

NONE

32MB

8MB

(2) 1M x 36

(2) 2M x 36

32MB

8MB

(2) 2M x 36

(2) 1M x 36

40MB

8MB

(2) 2M x 36

(2) 2M x 36

40MB

8MB

(2) 4M x 36

NONE

48MB

8MB

(2) 1M x 36

(2) 4M x 36

48MB

8MB

(2) 4M x 36

(2) 1M x 36

DRAM CONFIGURATION (75MHZ & 90MHZ CPU ONLY CON’T)

Size

Bank 0A

Bank 0

Bank 1

56MB

8MB

(2) 2M x 36

(2) 4M x 36

56MB

8MB

(2) 4M x 36

(2) 2M x 36

72MB

8MB

(2) 4M x 36

(2) 4M x 36

72MB

8MB

(2) 8M x 36

NONE

80MB

8MB

(2) 1M x 36

(2) 8M x 36

80MB

8MB

(2) 8M x 36

(2) 1M x 36

88MB

8MB

(2) 2M x 36

(2) 8M x 36

88MB

8MB

(2) 8M x 36

(2) 2M x 36

104MB

8MB

(2) 4M x 36

(2) 8M x 36

104MB

8MB

(2) 8M x 36

(2) 4M x 36

136MB

8MB

(2) 8M x 36

(2) 8M x 36

Note: Bank 0A is factory installed and is not configurable.

DRAM CONFIGURATION (100MHZ CPU ONLY)

Size

Bank 0A

Bank 0

Bank 1

24MB

16MB

(2) 1M x 36

NONE

32MB

16MB

(2) 1M x 36

(2) 1M x 36

32MB

16MB

(2) 2M x 36

NONE

40MB

16MB

(2) 1M x 36

(2) 2M x 36

40MB

16MB

(2) 2M x 36

(2) 1M x 36

48MB

16MB

(2) 2M x 36

(2) 2M x 36

48MB

16MB

(2) 4M x 36

NONE

56MB

16MB

(2) 1M x 36

(2) 4M x 36

56MB

16MB

(2) 4M x 36

(2) 1M x 36

64MB

16MB

(2) 2M x 36

(2) 4M x 36

64MB

16MB

(2) 4M x 36

(2) 2M x 36

80MB

16MB

(2) 4M x 36

(2) 4M x 36

80MB

16MB

(2) 8M x 36

NONE

88MB

16MB

(2) 1M x 36

(2) 8M x 36

88MB

16MB

(2) 8M x 36

(2) 1M x 36

96MB

16MB

(2) 2M x 36

(2) 8M x 36

96MB

16MB

(2) 8M x 36

(2) 2M x 36

112MB

16MB

(2) 4M x 36

(2) 8M x 36

112MB

16MB

(2) 8M x 36

(2) 4M x 36

136MB

16MB

(2) 8M x 36

(2) 8M x 36

Note: Bank 0A is factory installed and is not configurable. Only 8MB of the onboard memory is used when 136MB is installed.

CACHE CONFIGURATION

Note: This board is factory installed with 256KB. It is not configurable.

CPU BUS SPEED CONFIGURATION

Speed

P5

50MHz

pins 2 & 3 closed

60MHz

pins 1 & 2 closed

VIDEO MEMORY CONFIGURATION

Note: To upgrade video memory, install video module on jumpers J4 & J12.