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Chapter 5
Hard Drive Settings

Interface Connections

Please consult Chapter Two "Hard Disk Interfaces" for specific details on connectors for IDE and SCSI interfaces.

Default Jumper Settings

The default or most common jumper positions are indicated by the symbol. Pin 1 and jumper 1 are indicated by an arrowhead symbol ().

Jumper Types

See Figure 5-1 for examples of common devices used to change the hardware configuration of hard drives.


Figure Chapter 5-1:  Common Jumper Types

Non-Documented Jumpers

Some jumper settings are specified as "unidentified", "factory configured – do not alter", or may have a dash. Information was not available on these jumpers or settings. These jumpers may be used by the factory for diagnostic or low-level purposes, and should be left as received out of the box. Also, some connection points for test equipment look like jumpers. In most cases, the diagrams do not show these test points.

Typical Jumpered Options

Most of the jumper settings in this chapter are self-explanatory. The most important hardware option to set will be Drive Select (SCSI, ESDI, ST-506/412), or Master/Slave (IDE).

Selected Drive Settings

Jumper settings and diagrams for the industry's most popular hard drives are provided in this chapter. The drives are listed in alphabetical order by manufacturer.

The diagrams only reflect the important access points and are not shown in fine detail. Some terminator resistor packs and jumper block locations change from one Printed Circuit Board (PCB) revision to another, but the functions of each remain the same.


 

CONNER PERIPHERALS, INC.

CONNER CFA-1080A, CFA-170A, CFA-270A, CFA-340A, CFA-540A, CFA-810A, CFS-210A, CFS-420A, CP30174, CP-30344

Interface: IDE(AT)
Size: 3.5 in. third height
View: Bottom

DRIVE CONFIGURATION
Selection C/D
Single drive only closed
     Master drive in a two drive system closed
     Slave drive in a two drive system open

 
USER CONFIGURABLE SETTINGS
Function Location Setting
     Conner master/slave mode is used ATA/ISA open
     ATA/CAM master/slave mode is used ATA/ISA closed
Factory configured - do not alter all other jumpers N/A

 

CONNER CFA850S, CFA1275S, CFP1080S

Interface: SCSI-2
Size: 3.5 in. Third Height
View: Bottom

PRIMARY DRIVE SELECTION
Drive Number ID0 ID1 ID2
0 open open open
1 closed open open
2 open closed open
3 closed closed open
4 open open closed
5 closed open closed
6 open closed closed
7 closed closed closed
Note: Primary and secondary ID jumpers are mutually exclusive. Do not set both jumper blocks.

 
USER CONFIGURABLE SETTINGS
Function Location Setting
TERMPWR enabled E1 open
     TERMPWR disabled E1 closed

 
CONNECTIONS
Function Location
External LED LED
Spindle Sync SS

 
PRIMARY SPINDLE STARTUP
Setting DS
Spindle starts on power-up Open
Spindle starts on command only closed
Note: Primary and secondary spindle startup jumpers are mutually exclusive. Do not set both jumpers.

 
SECONDARY DRIVE SELECTION
Drive Number OE1 OE2 OE3
0 open open open
1 closed open open
2 open closed open
3 closed closed open
4 open open closed
5 closed open closed
6 open closed closed
7 closed closed closed
Note: Primary and secondary ID jumpers are mutually exclusive. Do not set both jumper blocks.

 
SECONDARY SPINDLE STARTUP
Setting OE4
Spindle starts on power-up open
Spindle starts on command only closed
Note: Primary and secondary spindle startup jumpers are mutually exclusive. Do not set both jumpers.

 
MISCELLANEOUS TECHNICAL NOTES
Spindle startup can be configured through the DSPN bit in the MODE SELECT page 0.

 
FACTORY CONFIGURED SETTING
Jumper Setting
J3/jumper 1 open
J3/jumper 2 open
J3/jumper 3 open
J3/jumper 4 Open
J3/jumper 5 Open

 

CONNER CFP2107S, CFP4207S

Interface: SCSI 2 Fast
Size: 3.5 in. third height
View: Bottom

DRIVE SELECTION
Drive Number E1 E2 E3
0 open open open
1 closed open open
2 open closed open
3 closed closed open
4 open open closed
5 closed open closed
6 open closed closed
7 closed closed closed

 
USER CONFIGURABLE SETTINGS
Function Location Setting
Factory oonfigured - do not alter E4 open
Spindle motor starts on power-up E5 open
     Spindle motor starts on command only E5 closed
Spindle motor delayed (Drive ID x 4 sec.) E6 closed
     Spindle motor not delayed E6 open
SCSI parity check enabled E7 open
     SCSI parity check disabled E7 closed
TERMPWR enabled E8 closed
     TERMPWR disabled E8 open

 
CONNECTIONS
Purpose Location
Spindle Synch connector J3/jumper 1
External LED J3/jumper 2

 
MISCELLANEOUS TECHNICAL NOTES
a)  Jumpers E1-E3 and the first three jumpers of J5 are mutually exclusive. Do not set both.
b)  All other jumpers and settings are undocumented.

 
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