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EQUITY 486DX2/50 PLUS
EQUITY 486SX/25 PLUS
Hard disk drive types (continued)
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lnstallation / Support Tips
Power
This computer has an automatic input voltage sensing power
supply (between
115V,
for USA and Canadian use, and
23OV,
for
use in other countries). There is no manual switch
Mouse and Keyboard
-
When connecting the mouse and keyboard, be careful to
plug them into the proper ports. Although they are
physically identical, they are not interchangeable, and
damage may occur to the ports or the
main
board.
Installing Floppy Disk Drives
-
When installing a floppy disk drive as drive B, remember to
set the drive select jumper to the second position and attach
the pass-through connector on the floppy drive controller
cable to the drive, not to the end connector.
-
If the drive does not function normally, make sure that the
drive type has been correctly selected in Setup. Also check
that any necessary drivers have been installed correctly.
-
If you have installed two floppy disk drives, remember that
the computer will boot from drive B when a disk is inserted
indriveBandnodi.skisinsertedindriveA.
Installing Hard Disk Drives
-
It is recommended that a
l&bit,
AT-type hard disk
controller be used if you are installing a drive that cannot
use the embedded IDE interface. lnstalling a 16-bit interface
wilI
override the embedded IDE port and disable it,
freeimg
the standard base l/O
address
and
lRQ(s).
Setup
-
When installing a hard disk drive, be sure to consult the
drive type table for the drive type parameters (geometry)
which fit the drive you are installing. You can also select a
type with parameters having lesser values, as long as they
do not exceed the maximum capacity (in MB) of your drive.
If
there is no match for your drive, enter the exect
parameters using the User
Defined
option.
Software Problems
-
When installing a copy-protected software package, first try
the installation at high speed. If this does not work properly,
try switching to low speed for the installation If you are still
unable to load the program at high speed, try loading at low
speed and then switching to high speed.
For the Equity
486DX2/50
PLUS, high speed is
50
MHz.
For the Equity
48&3X/25
PLUS, high speed is 25 MHz.
Both systems simulate 8 MHz at low speed.
-
When using a software package that uses a key disk as its
copy-protection method, try loading it at high speed. If this
does not work, enable Auto Speed in Setup on the Reference
diskette.
Power-on Password
-
Make sure that you do not forget the Power-on password
you set up. If you do, it wilI be necessary to disable it by
moving jumper JP5 on the main circuit board to position B.
Information Reference List
Engineering Change Notices
None.
Technical Information Bulletins
None.
Product Support Bulletins
None.
Related Documentation
TM-48625/50
Equity
486DX2/50
PLUS &
Equity
486SX/25
PLUS Service Manual
PL-486DX2/50
Equity
486DX2/50
PLUS Parts Price List
PL-486%25+
Equity
48fiSX/25
PLUS Parts Price List
SPK486DX2/50
Equity
486DX2/50
Self Paced Kit
Y73899110100
Equity
486DX2/50
PLUS
4&3X/25
PLUS User’s Guide
Equity Series Computers
5/12/92
466DX2/50 & 486SX/25 PLUS-5