Epson Apex 100 Product Support Bulletin - Page 7
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Q. Can a hardcard be installed in addition to a hard disk drive?
A. Yes, but you must be sure that you do not mix MFM and RLL type hard
drives and you must be sure that the power supply is not overloaded by
using low powered hard disk drives (less than 12 watts avg. each). The
hardcard must also have a jumper for selecting it as drive 2 to avoid
conflict with the first hard disks drive's controller.
Q. What hard disk controllers can I use?
A. The Western Digital (WD1002A- WX1) hard disk controller is recommended
for use in the APEX 100 for MFM type HDDs.
XTGEN controller as there are known compatibility problems. RLL type
hard disk drives require RLL controllers. For MFM disk drives larger than
20MB, the WD1002A- WX2 hard disk controller with Western Digital's
SuperBios ROM should be used.
Q. What type of floppy disk drives does the APEX 100 have and what kind
of floppy diskettes should I use?
A. The APEX 100 - series computers use half - height, 5 1/4", 360KB floppy
disk drives.
soft- sector, 48 TPI floppy diskettes.
marked DSDD or 2S - 2D, Soft- Sector, 48TPI.
be formatted using the FORMAT command on the MS- DOS utilities
provided before being used.
Q. Can I use other types of floppy disk drives with the APEX 100?
A. The Epson 3.5", half - height, 720KB floppy drive (Epson Model code
A112A - AA) has been tested with the APEX 100 computer and is
compatible (available from Epson Computer Products dealers).
5.25", 1.2MB and 3.5", 1.44MB, half - height floppy disk drives are not
supported with the APEX 100 personal computer in its standard
configuration.
Q. Is it possible to disable the APEX 100 floppy disk controller?
A. Yes, move jumper J1 on the system board from position A to position B.
Make sure to use only double - sided, double-density,
Third party external drives can be used for this requirement.
PSB No: S-0097
Page: 3 of 8
Do not use the WD1002-
The diskette boxes are usually
New blank diskettes must