Orchid Tiny Turbo XTra Manuel utilisateur
Tiny Turbo XTra
User's Manual
ORCHID
TM
1990, Orchid Technology. No part of this manual may be
reprinted without written permission from Orchid Technology.
Tiny Turbo and Orchid are trademarks of Orchid Technology.
All other products mentioned in this manual are trademarks of
their respective manufacturers.
Table of Contents
Introduction 1
About This Manual 2
About The Tiny Turbo XTra 3
System Requirements 4
Chapter 1: Installation 5
Jumper and Switch Setup 5
80287 Math Co-processor Chip 5
Compatibility Jumper 6
Installing the 80287 7
Installing the Tiny Turbo XTra 8
Verification Testing 9
Reinstallation 10
Chapter 2: Operation 10
CPU Control 11
Cache Control 12
The Cache Switch 12
Appendix A: Technical Specifications 13
Appendix B: Troubleshooting 14
Appendix C: Returning a Product 16
Appendix D: FCC Compliance 19
1
■Introduction
Orchid Technology has been a leading manufacturer of peripher-
als for personal computers since its incorporation in 1982, and is
noted for introducing a series of personal computer industry
firsts:
1982 PCnet: the first personal computer Local Area
Network.
1984 PCTurbo: the first Accelerator card for PC
compatible computers.
1985 ECCELL: the first PC Multifunction card with
error correction.
1987 RamQuest 50/60: the first EMS (Expanded
Memory Specification) product for the IBM PS/2
computers.
1990 ProDesigner II: the first super VGA graphics
adapter to support 1024 x 768 graphics in 256
colors.
1990 RamQuest 8/16: the first Industry Standard
Architecture (ISA) card that is expandable to 32
megabytes.
Thank you for buying the Tiny Turbo XTra. Care has been taken
to ensure that it will provide you with years of trouble free
operation. We are sure you will be pleased with your purchase.
2
■About This Manual
This manual presumes that you are already familiar with your
IBM PC or compatible computer. While the Tiny Turbo XTra
has been designed for ease of installation, we recommend that
you refer to your computer’s reference manual when terminol-
ogy or installation steps are unfamiliar to you.
This manual has been organized to help you set up and install
the Tiny Turbo XTra as quickly as possible. Each section is
divided into short, easy to follow steps, to help you understand
the installation and function of the Tiny Turbo XTra
Introduction: A basic overview of the Tiny Turbo XTra .
Installation: A step-by-step guide to installing the Tiny
Turbo XTra.
Operation: A technical overview of the Tiny Turbo XTra
and its operation.
3
■About The Tiny Turbo XTra
The Tiny Turbo XTra Accelerator provides a way to upgrade
IBM PCs, XTs, and compatibles computing power to higher
speed levels of an IBM AT without compromising the either the
reliability of the original computer or the compatibility with
software and hardware.
The key to compatibility is the CPU switch between the 12MHz
80286 and the original processor used in your computer. The
Tiny Turbo XTra replaces the 8088, 8088-2, or V-20 processor in
your PC, but leaves the processor in the system for 100% com-
patibility. You can switch between your system processor and
the 80286 with Tiny Turbo XTra’s lower rear-panel switch.
The Tiny Turbo XTra comes equipped with 8K bytes of high-
speed cache memory. For the few applications that will not load
in a caching environment, the 80287 and the cache memory can
be switched off from the rear panel toggle switches.
The Tiny Turbo XTra lets you use a math chip for fast math-
ematical calculations. A 5, 8 or 10MHz 80287 can be installed on
the Tiny Turbo XTra in the socket provided.
80287 Socket
8088 Socket
80286
Processor
Figure 1: Tiny Turbo XTra
CPU Switch
Cache Switch
4
■System Requirements
Host: IBM PC, XT, or compatibles based on
the 8088, 8088-2 or V-20 processors.
Connection: Fits into any slot, except J8 on the IBM
XT.
Memory: Will work in the PC with any amount of
memory.
Power and Cooling: Power consumption and cooling should
not be a concern in a standard IBM XT.
IBM PCs, Compaq portables, and other
systems with small power supplies may
have to be upgraded to 135 Watt, XT
type power supplies.
Expansion Chassis: Try to avoid using an expansion chassis
in a system that contains a Tiny Turbo
XTra. Although you may be able to get
the system to work, it is not recom-
mended. You may experience unrecov-
erable data losses.
Note: Do not install the Tiny Turbo XTra in a computer that contains
a microprocessor other than an 8088, 8088-2 or V-20. It will not work
and damage may occur.
IMPORTANT
Static Electricity is a deadly enemy of your computer peripheral. Since
you will be handling the Tiny Turbo XTra during this installation
process, be sure to guard against electrostatic discharge. Do not wear
clothing that causes static (such as wool sweaters) during installation.
In most cases touching the power supply housing will discharge static
electricity. If you believe there may be a static problem, you may want
to buy a ground strap from your local radio parts store.
5
Installation
The Tiny Turbo XTra was designed for ease of use. The installa-
tion is simple, and the operation straightforward. Be sure to
read all notations in italics prior to installing the Tiny Turbo
XTra.
■Jumper and Switch Setup
Before installing the Tiny Turbo XTra in your computer, make
sure that the jumpers and switches are set for your configura-
tion.
The factory configuration of the Tiny Turbo XTra is as follows:
❐No 80287 Math co-processor installed.
❐Timing and compatibility is set for IBM PCs and
most compatibles.
❐Installation in any slot except J8 in the IBM XT,
J8 is the closest slot to the 8088. It is not a normal slot,
IBM intended it to be used for connection to an expansion
chassis.
You can change the configuration by moving jumpers. Their
functions are given in the next sections.
To install a jumper, the black plastic sleeve must cover two
opposite pins with a pin in each hole of the sleeve. If it is hard to
get a grip on a jumper, try using a small screwdriver.
❐ 80827 Math Co-processor Chip
The Tiny Turbo XTra comes with a socket for a 5MHz, 8MHz, or
10MHz 80287 math chip.
1
6
•
••
••
••
•
•
••
••
••
•
•
••
••
••
•
•
••
••
••
•
• • •
COM J1 IBM
COM J1 IBM
• • •
Below is the configuration matrix for the four math chip options:
J2 J3 J4 J5
❐ No Math Chip
(factory setting)
❐ 5MHz 80287
❐ 8MHz 80287
❐ 10MHz 80287
Note: J6 and J7 are to remain unjumpered.
❐Compatibility Jumper
To ensure compatibility with a wide variety of 8088, 8088-2, or
V-20 systems, the Tiny Turbo XTra can run with different timing
clocks. The board comes set for IBM timing. Most compatibles
operate in this configuration. If the Tiny Turbo XTra doesn't
operate in your compatible, try switching the jumper to the
alternate position.
IBM and most compatibles
Other compatibles
Note: Only use the OTHER COMPATIBLES jumper setting if you
have trouble with the default IBM setting.
7
❐Installing the 80287
1. Insert the 80287 math chip into the top socket on the Tiny
Turbo XTra so that the mark on the chip indicating pins 1 and
40 are at the same end of the socket’s indentation (aiming
toward the adapters bracket).
2. Make sure all the pins are aligned with the holes in the socket
and press down firmly.
Be careful not to bend any of the pins. If you bend some, be
careful straightening them, because the pins can only be
flexed a few times before breaking.
3. Install the jumper on the pins that correspond to the 80287
clock frequency, 5MHz, 8MHz, or 10MHz.
Note: Your system can have two math chips, an 80287 on the Tiny
Turbo XTra and an 8087 on the computer’s motherboard. The system
will use the 80287 in Turbo mode and the 8087 in PC mode.
When using a math chip on the motherboard, be sure to set
appropriate motherboard switch in the OFF position:
Switch 1, position 2 in an IBM PC
Switch 2, position 2 in an IBM XT
For compatibles, check the manual for that computer.
The two-math chip configuration described above ensures
greater software compatibility. This is because programs use
different ways of determining if a math chip is present: some
look at the setting of the motherboard switch; some look for the
80287 on the accelerator. All of these types of programs will
correctly determine that a math chip is present if the above
configuration is used.
Table des matières
Autres manuels Orchid Matériel informatique
Manuels Matériel informatique populaires d'autres marques
EMC2
EMC2 VNX Series Manuel du propriétaire
Panasonic
Panasonic DV0PM20105 Manuel utilisateur
Mitsubishi Electric
Mitsubishi Electric Q81BD-J61BT11 Manuel utilisateur
Gigabyte
Gigabyte B660M DS3H AX DDR4 Manuel utilisateur
Raidon
Raidon iT2300 Manuel utilisateur
National Instruments
National Instruments PXI-8186 Manuel utilisateur
