Epson Equity 386SX PLUS Product Support Bulletin page 11

Q3. What is the Auto Speed function?
A. The Equity 386SX PLUS is capable of operating at 16MHz or 8MHz. Some
copy-protected applications require the computer to run at 8MHz while
accessing the program diskette. By enabling the Auto Speed function, the
computer automatically switches to 8MHz when accessing the diskette drive.
It then switches back to 16MHz for optimal performance. See above
procedure for setting the Auto Speed function.
Q4. What BIOS does the Equity 386SX PLUS use?
A.
The Equity 386SX PLUS BIOS is written specifically for the computer by Seiko-
Epson Corp.
Q5. Can the Equity 386SX PLUS support an 80387 co-processor?
A. Yes, 80387SX support is available. The Equity 386SX PLUS has a socket for
an optional 80387SX-16 math co-processor which operates at 16MHz. This
allows extra processing power for math intensive programs like Lotus 1-2-3 or
AUTOCAD.
Q6. Can the Equity 386SX PLUS use option cards that are available for the IBM
PC/AT?
A.
The Equity 386SX PLUS uses an AT-compatible ISA (Industry Standard
Architecture) bus that enables you to install any of the various add-on
products designed for IBM PC, XT or AT computer, such as: expanded
memory, EGA or VGA video, internal modems and many more. lt also
supports all of the option boards manufactured by Epson for the EQUITY
series. There are 4 standard l/O expansion slots (one with 8-bit bus and 3
with 16-bit bus). The 16-bit slots will also accept most 8-bit compatible cards.
The Equity 386SX PLUS offers flexibility in tailoring the system to your needs.
Q7. Are there any tested internal modems that can be used?
A.
The Epson Link PC and the Hayes 2400 baud internal modems have been
approved.
Q8. Does the Equity 386SX PLUS have a built-in mouse port?
A.
Yes, it has a PS/2 compatible mouse port on the rear panel of the computer.
The connector is a 6 pin mini DIN for an IRQ12 mouse or other device.
PSB No: S-0131
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