VESA 80486 Deep Green User manual

11.
2.
3.
Please short pins 2-3 on jumper JPl before using this
system mainboard.
In GREEN CPU inactive mode, the system will stop the
DOS timer. To update the DOS timer, please use
Microsoft POWER.EXE to put the following line in your
config.sys file:
DEVICE=POWER.EXE STD
Please check the Intel CPU type detected by the BIOS in
the start-up screen:
If the detected Intel CPU is a DX4-S, 80486DX2-S,
80486DX-S or 80486SX-S, the CPU jumpers must be set for
a DX-SL CPU.
If the detected Intel CPU is a
80486DX, 80486DX2, or
80486SX, the CPU jumpers must be set for a DX/DX2
CPU.
The information presented in this publication has been
carefully checked for reliability; however, no responsibility
is assumed for inaccuracies. Specifications are subject to change
without notice.
Trademarks
IBM, PC/AT, and OS/2 are trademarks of International
Business Machines Corporation.
AMD is a trademark of Advanced Micro Devices Inc.
AWARD is a registered trademark of Award Software Inc.
Microsoft is a registered trademark of
Microsoft Corporation.

Contents
Chapter 1:Introduction
..................................................
1
Key Features.....................................................................
2
Unpacking the Mainboard
.................................................
3
Mainboard Layout.............................................................
4
Chapter 2: Hardware Configuration.
...........................
5
Power Precautions
.............................................................
5
Jumper Switch Settings
......................................................
5
JP3 -
FlashROMVPPSupply
Selector......................
6
JP27-JP30, JP32, JP33- CPU Type Jumpers
...................7
JP6-JP8 - CPU Clock Setting
.....................................
7
JP31- Intel 80486DX4 CPU Clock Multiplier Jumper
..
.8
JP34- AMD 80486DX4 CPU Clock Multiplier Jumper . . 8
JP21-JP24,
JP35 - CPU
Power Selectors......................
.8
JP16 - VESA Clock Selector
....................................... 8
JP17 - VESA Wait State...........................................
9
Memory Configuration.......................................................
9
Chapter 3: Mainboard Installation
.....
....................
10
What You Need
...............................................................
10
Power Supply Requirements
..............................................
11
Installing the Mainboard
.................................................12
Connecting the Mainboard
................................................
13
Connectors
........................................................................
13
Jl - Keyboard Connector
........................................... 13
J9
- Power Supply Connectors
....................................
14
.’ ‘-
J18 - Speaker Connector
............................................
14

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_ Chapter 1
.
Introduction
The 80486 Deep Green mainboard is a 32-bit high-performance
system board. This mainboard is not only compatible with
IBM AT systems, but it also provides power-saving features
that allow the user to program the timer.
You can configure the 80486 Deep Green mainboard for use with
many
486based microprocessors, such as the following:
QIntel P24T
a Intel P24D
m Intel 80486DX4 (P24C)
a Intel 80486DX2/DX/SX-SL
0 Intel 80486DX2 / DX /SX
a CyrixCX486DX2/DX/S
a AMD AM486DX4/DX2/DX
c1 UMCU5
The 80486 Deep Green mainboard features on-board power
management that allows the user to assign system clock rates,
hard disk power saving and display power saving when
entering doze mode, suspend mode or inactive mode.

2
Chapter
Key Features
0
0
0
0
Advanced features of the 80486 Deep Green mainboard include:
Supports CPUs running at 25/33/40/50/66/75/80/100 MHz:
- Intel P24T
-
Intel P24D
-
Intel 80486DX4 (P24C)
-
Intel 80486DX2 / DX / SX - SL
-
Intel 80486DX2 / DX /SX
-
Cyrix CX486DX2 / DX / S
-
AMD AM486DX4 / DX2 / DX
- uMcu5
Ll write back or write through cache
L2 write back policy for high performance
Flexible cache RAM size 64/128/256/512/1024 KB in two
banks or one bank with 16 bytes line size
DRAM auto-detection
/ banking
Four banks of DRAM with memory size to 64 MB using
combinations of 256K, lM, 2M, 4M, 8M, 16M, 32M, 64M SIMM
Provides green PC power management
Level 2 cache power saving
Supports four power management modes for SMM (System
Management Mode) CPUs: On, Standby, Inactive, Off.
Seven 16 bit I/O slots including three 32-bit VL-Bus master
slots
On-board CR2032 3.0 Volt lithium battery
237-pin ZIF socket
Provides flash ROM support
Fully supports Microsoft APM (advanced power management)
Supports 3.3 / 4.0 Volts for low voltage CPU

Introduction 3
Unpacking the Mainboard
.
The mainboard comes packed in a sturdy cardboard shipping
carton. The carton contains:
0
The 80486 Mainboard
l
This User’s Guide
Note: Do not remove the mainboard from its original packing until
you are ready to install it.
The mainboard is easily damaged by static electricity.
Observe the following precautions while unpacking and
installing the mainboard.
1.
Touch an unpainted area of the system chassis before
handling the mainboard or any component. Doing so
discharges the static charge your body may have built.
2. Remove the mainboard from its anti-static wrapping
and place it on a grounded surface, component side up.
3.
Inspect the mainboard for damage. Shipping may have
loosened integrated circuits from their sockets. If any
integrated circuit appears loose, press carefully to seat
it firmly in its socket.
Do not apply power if the mainboard appears damaged. If
there is damage to the board, or items are missing, contact your
dealer immediately.

Chapter 1.
Mainboard Layout
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U8 “U, 6”’
JP5
Mom JP30 = JP33
JP15 JPl8Jt'ly JPZZ
Figure 1-1. Mainboard Layout

-Chapter 2
Hardware Configuration
Before you install the 80486 mainboard into the system
chassis, you may find it convenient to first configure the
mainboard’s hardware. This chapter describes setting jumpers,
installing memory modules, and attaching components.
Power Precautions
Before you begin configuration, make sure you are working
with an unplugged mainboard. Many components are powered
by low-voltage current, but there still may be a dangerous
electric current coming from the leads and power supply. Take
the following precautions:
0
Turn off the power supply, and unplug the power cord
before you begin.
l
Unplug all cables that connect the mainboard to any
external devices.
Jumper Switch Settings
You can configure hardware options by setting jumper switches
on the mainboard. See Figure 1-l for jumper locations. Set a
jumper switch as follows:
0
Short a jumper by placing the plastic jumper cap over
two pins of the jumper.
0
Open the pins of a jumper by removing the jumper cap.

6
Chapter 2
Note: When you open the jumper, attach the plastic jumper cap to
one
of the pins so you don’t lose it.
For setting 3-pin jumpers, the symbols below are used:
l-2
Pins 1 and 2 are Shorted with a jumper cap.
2-3
Pins 2 and 3 are Shorted with a jumper cap.
For setting 2-pin jumpers, the following symbols are used:
ON
The jumper is Shorted (ON) when the jumper
cap is placed over the two pins of the jumper.
OFF
The jumper is Open (OFF) when the jumper cap
is taken off of the jumper.
JP3 - Flash ROM VPP Supply Selector
JP3 is the Flash ROM Program Voltage selector.
Description
5 volt
JP3
l-2
I
12 volt
I
2-3
I