compaq lte elite User Manual

							>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION >>>>>>
						

							the front of the drive bay (Figure 9-28).
3. Pull the drive halfway out to access the drive cables (Figure 9-28).
4. Disconnect the cables from the drive.
5. Remove the drive.
NOTE: The expansion base comes from the factory with blank panels covering
the openings to the drive bays. If no drive is to be reinstalled in
the drive bay, cover the opening by installing the blank panel with
the two drive-mounting screws.
Installing a Drive
IMPORTANT: Refer to Table 8-10 for a list of Compaq supported drives. To
be supported in the expansion base, drives that are not listed
in table 8-10 must meet the maximum drive bay length
requirements listed in Section 10.1 and the power requirements
listed in Section 10.2.
The steps for installing a drive are the reverse of the steps for removing a 
						

							drive. Remember to install the drive upside down, since the drive cages are 
upside down during this procedure. In addition, refer to the drive 
manufacturers installation manual for specific instructions and
precautions for replacing a drive. 
The drive bays are designated as drive positions 1 [1] and 2 [2] 
(Figure 9-29). 
NOTE: Internal SCSI-2 drives must be installed in drive position 2 to usethe SCSI-2 signal cable included with the expansion base. Refer to 
Appendix F for more information on connecting and configuring SCSI-2 
drives.
When installing a drive that is different from a drive being removed, 
ensure that the logical drive designations and the configuration switch 
settings are correct (Appendix C). In addition, the first time the computer 
is docked after installing a different drive, the computer may detect a
configuration change and prompt you to run Computer Setup to configure 
optional devices (Section 6.7). After running Computer Setup, run Computer 
Checkup to verify that the drive is functioning properly (Section 2.3). 
NOTE: When installing a third-height drive that has a front panel, install a sixth-height panel to cover the space above or below the drive. The 
sixth-height  panel  and  its  two  screws  are  incl uded  with  the  expansion  base. 
						

							Installing an Integrated Drive Electronics (IDE) Hard Drive 
IMPORTANT: MS-DOS 6 or higher (5.0 or higher as published by Compaq) isrequired to use an optional IDE hard drive in the expansion 
base. When using a previous version of MS-DOS, the computer 
does not recognize the optional IDE hard drive.
The expansion base has a hard drive interface for an IDE drive (which has a 
built-in controller). There are special procedures for configuring the 
system (computer, drive, and expansion base) when installing an IDE drive
(Appendix C). 
IMPORTANT: If the hard drive has no front panel, install a blank panel over the drive bay opening (Figure 9-30). Place the panel tabs [1] 
behind the metal tabs at the front of the hard drive frame [2]. 
If the panel is installed in front of the metal tabs, the bottom 
cover of the expansion base cannot close properly.
Drive Cables 
						

							1. IDE Hard drive signal
2. SCSI-2
3. Drive power
4. Tape/diskette drive signal
The drive power cable [3] is a daisy chain type that can connect to either
one or two drives and comes preinstalled on the vertical circuit board. The
IDE hard drive signal cable [1], the SCSI-2 cable [2], and the tae/diskette
drive signal cable [4] come with the expansion base, but are not
preinstalled (Figure 9-31).
Each cable has a printed description, a Compaq spare part number, and a
Compaq assembly part number. The vertical circuit board also has a printed
description of where drive cables connect to it.
NOTE: The SCSI-2 drive cable connects to the system board, not to the
vertical circuit board.
Table 9-1 provides information regarding cable connector locations,
preinstallation, and number of drives supported: 
						

							Table 9-1. Drive Cables
===========================================================================
Cable Connector Number of Drives
Description Preinstalled Location Supported
===========================================================================
Drive Power Yes Vertical Circuit 1 or 2
Board
---------------------------------------------------------------------------
IDE Drive No Vertical Circuit 1
Signal Board
---------------------------------------------------------------------------
Tape/Diskette No Vertical Circuit 1 or 2
Drive Signal Board
---------------------------------------------------------------------------
Internal No System Board 1
SCSI-2
===========================================================================
To remove a drive cable, complete the following steps:
1. Remove the bottom cover (refer to Section 9.6).
2. Disconnect the drive cable from the drive(s).
3. Disconnect the drive cable from the vertical circuit board or the system
board.
IMPORTANT: When replacing a drive cable, fold the cable so that it:
- Lies flat and is not under stress.
- Does not interfere with the operation of the manual eject
override mechanism.
- Does not interfere with the installation of another drive or
drive cable.
9.16 Drive Cages 
The expansion base has two drive cages that are interchangeable and that
can be removed and replaced separately.
Removing the Drive Cage
To remove a drive cage, complete the following steps:
1. Remove the bottom cover (Section 9.6).
2. Remove any installed drives and drive bezels (Section 9.15).
3. Remove the four screws that attach the drive cage [1] to the top cover
(Figure 9-32).
4. Remove the drive cage and the drive cage spacer [2] (Figure 9-32). 
						

							Replacing the Drive Cage
IMPORTANT: To prevent the top cover from bowing and causing interference
during docking and undocking, the drive cage spacer must be
properly installed when replacing the drive cage.
To replace the drive cage, complete the following steps:
1. Place the drive cage(s) in position (Figure 9-33).
2. Replace the drive cage screws, but do not tighten them (Figure 9-33). 
						

							3. If the other drive cage was not removed, loosen its screws.
4. Slide both drive cages toward the center of the top cover as much as the
screw holes allow (Figure 9-34). 
						

							5. Tighten the screws.
6. Place the first end of the drive spacer [1] into the slot [2] of the
first drive cage (Figure 9-35). 
						

							7. Flex the top cover of the expansion base downward [1] to slightly widen
the gap between the drive cages (Figure 9-36).
8. While the top cover is flexed, place the other end of the drive cage
spacer [2] into the slot on the other drive cage [3], and release the
tension on the top cover (Figure 9-36).