Drive Carrier

Caution Review the ESD precautions in Bulletins Safety. Note For information on the Five-Drive configuration, refer to Hard Drive Upgrades in the Upgrades chapter. 3 Remove the two screws that secure the 5-drive carrier to the drive shelf. 4 Grasp the cable tie and the edge of the carrier and lift the 5-drive carrier out of the computer.

Logic Board Connectors

Note The order of the cache and ROM SIMMs will vary according to the manufacturing date of the logic board. Be sure to correctly identify the cache SIMM, which has four chips on both sides, and remove it before returning the logic board to Apple for repair. Do NOT remove the ROM SIMM before returning the logic board. Sound In Left i Sound In Right i ADB Printer Modem Note The order of the cache and ROM SIMMs will vary according to the manufacturing date of the logic board. Be sure to correctly...

Drive Shelf

Before you begin, remove the following Review the ESD precautions in Bulletins Safety. Note For information on the Five-Drive configuration, refer to Additional Procedures. Disconnect the tape drive and CD-ROM drive power cables from the power supply. 2 Remove the two screws securing the drive shelf to the inside frame. 3 Slide the drive shelf toward the rear of the computer. Note In this step, be careful that none of the cables catch on the case. Grasp the cable tie and the metal tab and lift...

Tape Drive

Before you begin, remove the following Caution Review the ESD precautions in Bulletins Safety. 1 Remove the screw that secures the tape drive carrier to the drive shelf. 2 Lift the tape drive, along with its carrier, from the drive shelf. 3 Remove the four screws that secure the tape drive to its carrier and lift up on the tape drive to remove it. Note Before returning the tape drive to Apple, you must remove it from its carrier. Before you begin, remove the following 1 Remove the one screw...

Error Chords

One-part error chord sounds during startup sequence Disconnect SCSI data cable from hard drive and reboot system. If startup sequence is normal, initialize hard drive. If error chord still sounds, replace hard drive. Disconnect floppy drive cable from floppy drive and reboot system. If startup sequence is normal, replace floppy drive. Reseat ROM, RAM, and cache SIMMs, and reseat terminator card. Replace logic board. Retain customer's SIMMs.

Power Supply

Before you begin, remove the following Note The WS 9150 120 has a processor fan that attaches to the underside of the power supply and plugs into the logic board. You must unplug this fan before removing the power supply. 1 Disconnect the power supply cable from the logic board. 2 Remove the three power supply mounting screws. Release the two plastic latches on the inside of the CD-ROM bezel and remove the bezel. servicing a Workgroup Server 91 50 1 20, you must disconnect the processor fan...