How to: Replace a SCSI hard drive.
Solution:
Backup files, remove cover, disconnect drive cables, remove old drive. Set SCSI ID number on new hard disk, install drive in bay and reconnect cables. Turn on computer, run setup, partition disk and format logical drives.
WARNING: Electrical shock hazard! Make sure the power is turned off and the external power cables have been disconnected before removing the computer cover.
CAUTION 1: This task should be performed by a qualified computer technician.
CAUTION 2: Please observe steps to reduce the potential damage to computer components from electrostatic discharge.
NOTE 1: Read the instruction manual that came with the SCSI hard drive to determine whether the interface card bus type (ISA, EISA, VLB or PCI local bus) is compatible with the host computer.
NOTE 2: Refer to the computer and hard drive user manuals to compare the BIOS requirements of the new hard drive with the computer's BIOS specifications to make sure the new hard drive is compatible.
1) Save all files and close all applications if applicable.
2) Backup using DOS or backup using Windows 95 all desired application programs and data files on the hard drive using a network, tape backup unit, or diskettes if applicable.
3) Turn off the computer and disconnect the power cords.
4) Remove the computer cover.
5) Remove the existing SCSI hard drive:
a) Disconnect the power and data cables.
b) Remove the screws holding the hard drive in its drive bay.
c) Slide the hard drive out of the bay and lift it out of the computer.
6) On the new SCSI hard drive, set the 'SCSI ID' to a value that is unique on the SCSI bus.
NOTE 1: SCSI buses can handle 7 devices and the controller. The 'SCSI ID' identifies the device to the adapter. SCSI ID numbers range from 0 to 7. Refer to the SCSI hard drive user manual on how to set the SCSI ID for the hard drive.
NOTE 2: Each SCSI device on a SCSI Chain must have a unique number.
7) Insert the new hard drive unit into an empty 3.5 inch or 5.25 inch bay, and secure the drive in the bay with four screws.
8) Connect the power cable to the drive unit.
9) Connect the internal SCSI hard drive unit to the internal SCSI adapter connector using the 50 pin ribbon cable.
10) Replace the computer cover, and connect the power cords.
11) If the new hard drive will not be used to boot the computer, turn on the computer, and do the following:
NOTE 1: Properly installed hard drives are auto-detected on SCSI controllers during start-up.
NOTE 2: Typical installation errors are wrong jumper selections, loose connections or bad components. If the computer does not start normally, refer the problem to next-level support or a qualified computer technician.
12) If the new hard drive will be used to boot the computer, do the following:
NOTE 1: Properly installed hard drives are auto-detected on SCSI controllers during start-up.
NOTE 2: Typical installation errors are wrong jumper selections, loose connections or bad components. If the computer does not start normally, refer the problem to next-level support or a qualified computer technician.
a) Insert a Windows 95 Emergency disk or DOS boot disk into the floppy drive and turn on the computer.
b) Run the setup program that came with the SCSI hard drive.
c) Run FDISK.
d) Format the logical drives.
e) Type the following and press ENTER to copy over the necessary system files:
SYS <drive>:
(where <drive> is the letter assigned to the hard drive that will be used to boot the computer).
f) Install Windows 95.
NOTE: The hard drive is now ready to have data restored onto it.
