HP 6744 (US), 6730 (US/CAN), 6657 (LA) Cable-select option, Ultra ATA/66 cable, Drive mounting

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U10 Family Product Manual, Rev. A

19

2.2.2 Cable-select option

Computers that use cable-select determine the master and slave drives by selecting or deselecting pin 28, CSEL, on the interface bus. Master and slave drives are determined by their physical position on the cable. To enable cable select, set a jumper on pins 5 and 6 as shown in Figure

2.Refer to your computer manual to determine whether your computer supports this option.

2.2.3 Ultra ATA/66 cable

An 80-conductor 40-pin cable is required to run Ultra DMA mode 3 and

4.This cable uses even-numbered conductors connected to the ground pins to improve signal integrity.

Note. The drive supports both host and drive cable detection. The host detects the 80-conductor cable by sampling pin 34, CBLID–, on the interface bus. The drive detects the 80-conductor cable by sensing a capacitor at the host side through the CBLID– signal. The result is reported in a Fast Rise Detected bit (bit 13 of word 93 in the Identify drive parameter block).

2.3 Drive mounting

You can mount the drive in any orientation using four screws in the side- mounting holes or four screws in the bottom-mounting holes. See Figure 4 on page 20 for drive mounting dimensions. Follow these important mounting precautions when mounting the drive:

•Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling.

•Use only 6-32 UNC mounting screws.

•The screws should be inserted no more than 0.20 inch (5.08 mm) into the bottom mounting holes and no more than 0.14 inch (3.55 mm) into the side mounting holes.

•Do not overtighten the mounting screws (maximum torque: 6 inch-lb).

•Do not use a drive interface cable that is more than 18 inches long.

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Contents Product Manual Page Product Manual Page Contents ATA interface Configuring and mounting the driveFigures U10 Family Product Manual, Rev. a Introduction Specification summary table Drive Specification ST320423A Contact start-stop cycles 25C 40% relative humidity Default logical geometry Formatted capacityPhysical organization Physical characteristics Drive Specification ST320423A, ST315323A ST310212ARecording and interface technology Power specifications Seek timeStart/stop times Power consumption Typical current profile Power Mode Typical Watts Typical Amps RMS 12VPower-management modes Conducted noiseVoltage tolerance Idle and Standby timers Environmental tolerances Ambient temperatureTemperature gradient Sleep modeShock 3.2 Wet bulb temperatureHumidity 3.1 Relative Humidity AltitudeOperating vibration Nonoperating vibrationDrive acoustics Electromagnetic compatibility Agency certification Safety certificationElectromagnetic susceptibility ReliabilityAustralian CE-Tick N176 FCC verificationU10 Family Product Manual, Rev. a Handling and static-discharge precautions Configuring and mounting the driveDrive as master with a non-ATA-compatible slave Jumper settings Master/slave configurationCable-select option Ultra ATA/66 cableDrive mounting Mounting dimensions-top, side and end view ATA interface ATA interface signals and connector pinsO pins and supported ATA signals Command name Command code in hex ATA-standard commands Supported ATA commandsATA-standard security commands Identify Drive commandCommand name ATA-standard power-management commands0C5AH Word DescriptionXx07H Word Description ValueXx1FH Description if bit is set to Bit Word 0CH Set Features commandCode in Features A.R.T. Command Register 4 S.M.A.R.T. commandsA.R.T. Command Register Page
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