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Compaq Deskpro 4000 and 6000 Series of Personal Computers

A-1

appendix 

A

C

ONNECTOR 

P

IN 

A

SSIGNMENTS

This appendix contains the pin assignments for all external connectors:

Table A-1

Enhanced Keyboard

Connector and Icon (Orange)

Pin

Signal

KEY

6

5

4

3

2

1

1

2

3

4

5

6

Data

Unused

Ground

+5 VDC

Clock

Unused

Table A-2

Mouse

Connector and Icon (Green)

Pin

Signal

KEY

6

5

4

3

2

1

1

2

3

4

5

6

Data

Unused

Ground

+5 VDC

Clock

Unused

Summary of Contents for Compaq Deskpro 4000 Series

Page 1: ...ndix contains the pin assignments for all external connectors Table A 1 Enhanced Keyboard Connector and Icon Orange Pin Signal KEY 6 5 4 3 2 1 1 2 3 4 5 6 Data Unused Ground 5 VDC Clock Unused Table A 2 Mouse Connector and Icon Green Pin Signal KEY 6 5 4 3 2 1 1 2 3 4 5 6 Data Unused Ground 5 VDC Clock Unused ...

Page 2: ...ata Bit 0 Data Bit 1 Data Bit 2 Data Bit 3 Data Bit 4 Data Bit 5 Data Bit 6 Data Bit 7 Acknowledge Busy Paper End Select Auto Linefeed Error Initialize Printer Select IN Signal Ground Table A 4 Serial Interfaces Connector and Icon Pin Signal 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Carrier Detect Receive Data Transmit Data Data Terminal Ready Signal Ground Data Set Ready Request to Send Clear to Send R...

Page 3: ...alog Green Analog Blue Analog Monitor ID Bit2 Ground Ground Analog Ground Analog Ground Analog Not Connected Ground Monitor ID Bit 0 Bi directional Data SDA Horizontal Sync Vertical Sync Data Clock SCL For DDC support I2C monitors Table A 6 Ethernet RJ 45 Connector and Icon Pin Signal 1 2 3 4 5 6 7 8 Transmit Data Transmit Data Receive Data Unused Unused Receive Data Unused Unused ...

Page 4: ... Signal 1 11 12 13 14 15 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Ground Reserved Open Reserved Ground DBO DB1 DB2 DB3 DB4 DB5 DB6 DB7 DBP Ground Ground Reserved TERMPWR Reserved Ground ATN Ground BSY ACK RST MSG SEL C D REQ Input Output ...

Page 5: ...Audio Connector Connector and Icon 1 8 inch Miniphone Table A 9 Line In Audio Connector Connector and Icon 1 8 inch Miniphone Table A 10 Microphone Connector Connector and Icon Blue Stereo 1 8 inch Miniphone Table A 11 Headphone Connector Connector and Icon Stereo 1 8 inch Miniphone ...

Page 6: ...A 6 Connector Pin Assignments Table A 12 USB Connector Connector and Icon Pin Signal 1 2 3 4 1 2 3 4 VCC Data Data Ground ...

Page 7: ...3 4 5 6 7 8 Transmit Receive Ground 5V Mode Not Used Not Used Not used Table A 14 Ethernet AUI Connector and Icon Pin Signal 7 13 12 11 10 8 9 5 6 4 3 15 14 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Ground Collision Detect Transmit Data Ground Receive Data Ground Not Used Ground Collision Detect Transmit Data Ground Receive Data 12V Supply Ground Not Used ...

Page 8: ...tact your authorized Compaq dealer reseller or service provider General Requirements The requirements listed below are applicable to all countries 1 The length of the power cord set must be at least 6 00 feet 1 8 m and a maximum of 9 75 feet 3 0 m 2 All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country where the power cord set will be use...

Page 9: ...cord set fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country where it will be used 2 The flexible cord must be Type SJT or equivalent No 18 AWG 3 conductor The wall plug must be a two pole grounding type with a NEMA 5 15P 15A 125V or NEMA 6 15P 15A 250V configuration 3 The appliance coupler flexible cord and wall plug mu...

Page 10: ...he jumpers on the IDE hard drives are set properly for cable select installation Always check the label on the drives or check Chapter 7 of this manual when a new drive is added to verify that the jumper settings are set correctly Cable select may not function properly if drives other than those supported by Compaq are installed The second drive on a cable select cable can be a CD ROM drive Howeve...

Page 11: ...here the system ROM and Computer Setup provide support for IDE hard drives that are not supported in the hard drive parameter table Computer Setup automatically builds a soft drive type when it finds that a hard drive is not in the hard drive parameter table The soft drive types assign according to the table below Table 3 1 Soft Drive Type Assignments Drive Hard Drive Type Controller 0 65 Primary ...

Page 12: ...The reserved and available SCSI ID numbers for Compaq computers are as follows 0 is reserved for the primary hard drive and has the lowest device priority 1 through 6 are available for use by all SCSI devices 7 is reserved for the system board and has the highest device priority Every SCSI chain or circuit must be terminated closed at both ends Termination can be accomplished in one of several way...

Page 13: ...ate electronic device that installs into the SCSI signal port of an external device installs into an internal flat SCSI signal cable connector or installs into the SCSI signal port of some non Compaq SCSI 2 controllers 4 Terminators are generally designated as being active or passive by the voltage limiting method used The product documentation usually describes the terminator type 5 All Compaq SC...

Page 14: ... column in the row corresponds to a bit of data When a row is accessed it will output all of the data in its columns for that row onto the data bus The number of columns for each SDRAM is either 4 8 16 or 32 referred to as the data width of the SDRAM and is specified as x4 x8 x16 or x32 The SDRAM chips that make up a DIMM Module are built using either 16 Mb mega bit memory technology or 64 Mb memo...

Page 15: ...nd how many SDRAM chips are on each side of the module the memory technology and data width of the SDRAM chips can be determined For example a 32 MB DIMM Module with 8 chips on each side for 16 chips total is most likely comprised of 16Mb technology SDRAM chips with a data width of x8 That same 32 MB DIMM Module but with only 4 chips on one side is most likely comprised of 64Mb technology SDRAM ch...

Page 16: ...ps total on 1 side 32MB 4Mx4 4M x4 32 chips total 16 on each side 36 chips total 18 on each side 64MB 4Mx16 4M x16 4 chips total on 1 side 5 or 6 chips total on 1 side 32MB 4Mx16 4M x16 8 chips total 4 on each side 10 or 12 chips total 5 or 6 on each side 64MB 8Mx8 8M x8 8 chips total on 1 side 9 chips total on 1 side 64MB 8Mx8 8M x8 16 chips total 8 on each side 18 chips total 9 on each side 128M...

Page 17: ...d in either DIMM Slots 1 or 2 All other combinations of DIMM Modules with the exception of the x4 s are supported If an unsupported configuration is found the solution is to simply move the DIMM Modules into a supported configuration Table E 2 shows which configurations are or are not ROM Error Message If the ROM encounters a x4 DIMM Module or any of the unsupported x8 x32 combinations in the syst...

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