Acer V35N User manual

V35N System
User’s Guide

Copyright
Copyright ã 1996 by this company. All rights reserved. No part of
this publication may be reproduced, transmitted, transcribed, stored in
a retrieval system, or translated into any language or computer
language, in any form or by any means, electronic, mechanical,
magnetic, optical, chemical, manual or otherwise, without the prior
written permission of this company.
Disclaimer
This company ma es no representations or warranties, either
expressed or implied, with respect to the contents hereof and
specifically disclaims any warranties, merchantability or fitness for any
particular purpose. Any software described in this manual is sold or
licensed "as is". Should the programs prove defective following their
purchase, the buyer (and not this company, its distributor, or its dealer)
assumes the entire cost of all necessary servicing, repair, and any
incidental or consequential damages resulting from any defect in the
software. Further, this company reserves the right to revise this
publication and to ma e changes from time to time in the contents
hereof without obligation to notify any person of such revision or
changes.
Intel and Pentium are registered trademar s, and P54C is a trademar of Intel
Corporation.
IBM is a registered trademar and PS/2 is a trademar of International Business
Machines Corporation.
MS-DOS is a registered trademar of Microsoft Corporation.
ii

Other brand and product names are trademar s and/or registered trademar s of their
respective holders.
IMPORTANT SAFET
INSTRUCTIONS
1. Read these instructions carefully. Save these instructions for
future reference.
2. Follow all warnings and instructions mar ed on the product.
3. Unplug this product from the wall outlet before cleaning. Do not
use liquid cleaners or aerosol cleaners. Use a damp cloth for
cleaning.
4. Do not use this product near water.
5. Do not place this product on an unstable cart, stand, or table.
The product may fall, causing serious damage to the product.
6. Slots and openings in the cabinet and the bac or bottom are
provided for ventilation; to ensure reliable operation of the product
and to protect it from overheating, these openings must not be
bloc ed or covered. The openings should never be bloc ed by
placing the product on a bed, sofa, rug, or other similar surface.
This product should never be placed near or over a radiator or
heat register, or in a built-in installation unless proper ventilation is
provided.
7. This product should be operated from the type of power indicated
on the mar ing label. If you are not sure of the type of power
available, consult your dealer or local power company.
8. This product is equipped with a 3-wire grounding-type plug, a plug
having a third (grounding) pin. This plug will only fit into a
grounding-type power outlet. This is a safety feature. If you are
unable to insert the plug into the outlet, contact your electrician to
replace your obsolete outlet. Do not defeat the purpose of the
grounding-type plug.
iii

9. Do not allow anything to rest on the power cord. Do not locate
this product where persons will wal on the cord.
10. If an extension cord is used with this product, ma e sure that the
total ampere rating of the equipment plugged into the extension
cord does not exceed the extension cord ampere rating. Also,
ma e sure that the total rating of all products plugged into the wall
outlet does not exceed 15 amperes.
11. Never push objects of any ind into this product through cabinet
slots as they may touch dangerous voltage points or short out
parts that could result in a fire or electric shoc . Never spill liquid
of any ind on the product.
12. Do not attempt to service this product yourself, as opening or
removing covers may expose you to dangerous voltage points or
other ris s. Refer all servicing to qualified service personnel.
13. Unplug this product from the wall outlet and refer servicing to
qualified service personnel under the following conditions:
a. When the power cord or plug is damaged or frayed
b. If liquid has been spilled into the product
c. If the product has been exposed to rain or water
d. If the product does not operate normally when the operating
instructions are followed. Adjust only those controls that are
covered by the operating instructions since improper
adjustment of other controls may result in damage and will
often require extensive wor by a qualified technician to
restore the product to normal condition.
e. If the product has been dropped or the cabinet has been
damaged
f. If the product exhibits a distinct change in performance,
indicating a need for service
iv

14. Replace battery with the same type as the product's battery we
recommend. Use of another battery may present a ris of fire or
explosion. Refer battery replacement to a qualified serviceman.
15. Warning! Battery may explode if not handled properly. Do not
recharge, disassemble or dispose of in fire. Keep away from
children and dispose of used battery promptly.
16. Use only the proper type of power supply cord set (provided in
your eyboard/manual accessories box) for this unit. It should be
a detachable type: UL listed/CSA certified, type SVT/SJT, rated
6A 125V minimum, VDE approved or its equivalent. Maximum
length is 15 feet (4.6 meters).
v

FCC Class B Radio Frequency
Interference Statement
Note:
This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or
more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
4. Consult the dealer or an experienced radio/television technician
for help.
Notice 1:
The changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate
the equipment.
vi

Notice 2:
Shielded interface cables, if any, must be used in order to comply with
the emission limits.
vii

About this Manual
Purpose
This user’s guide gives you all the information you need to operate the
system properly.
Manual Structure
This user’s guide consists of two chapters as follows:
Chapter 1 System Board
This chapter describes the system board and all its major
components. It contains the system board layout, jumper
settings, cache and memory configurations, and other internal
devices.
Chapter 2 BIOS Utility
This chapter explains the system BIOS and tells how to
configure the system by setting the BIOS parameters.
viii

Conventions
The following conventions are used in this manual:
Text entered by user Represents text input by the user.
Screen messages Denotes actual messages that
appear onscreen.
, , , etc. Represent the actual eys that you
have to press on the eyboard.
NOTE
Gives bits and pieces of additional
information related to the current
topic.
WARNING
Alerts you to any damage that
might result from doing or not doing
specific actions.
CAUTION
Suggests precautionary measures
to avoid potential hardware or
software problems.
IMPORTANT
Reminds you to ta e specific action
relevant to the accomplishment of
the procedure at hand.
TIP
Tells how to accomplish a
procedure with minimum steps
ix

through little shortcuts.
x

Table of Contents
C apter 1 System Board
1.1 System Board Layout.................................................1-2
1.2 ESD Precautions........................................................1-4
1.3 Pre-installation Instructions........................................1-4
1.4 Installing a CPU.........................................................1-5
1.4.1 Installation Procedures................................1-5
1.4.2 Installing an OverDriveä CPU.....................1-6
1.5 Jumpers and Connectors...........................................1-7
1.6 Installing Memory.....................................................1-11
1.6.1 Installing a SIMM.......................................1-13
1.6.2 Removing a SIMM.....................................1-14
1.6.3 Reconfiguring the System.........................1-14
1.7 Upgrading the Second-level Cache..........................1-15
1.8 Installing ISA Cards..................................................1-16
1.9 Post-installation Instructions....................................1-17
1.10 Error Messages........................................................1-17
1.10.1 Software Error Messages..........................1-17
1.10.2 System Error Messages............................1-18
1.10.3 Correcting Error Conditions.......................1-19
C apter 2 BIOS Utility
2.1 Entering Setup...........................................................2-2
2.2 Basic System Configuration.......................................2-3
2.2.1 Date and Time.............................................2-4
xi

2.2.2 Dis ette Drives............................................2-5
2.2.3 IDE Drives...................................................2-6
2.2.4 Total Memory..............................................2-7
2.2.5 Enhanced IDE Features..............................2-8
2.2.6 Large Memory Support Mode......................2-9
2.2.7 Num Loc After Boot...................................2-9
2.2.8 Memory Test...............................................2-9
2.2.9 Quiet Boot...................................................2-9
2.2.10 Configuration Table...................................2-10
2.3 Advanced System Configuration..............................2-11
2.3.1 Internal Cache (CPU Cache).....................2-12
2.3.2 External Cache..........................................2-12
2.3.3 E0000h - FFFFFh (System BIOS).............2-12
2.3.4 C0000h - C7FFFh (Video BIOS)...............2-12
2.3.5 USB Host Controller..................................2-12
2.3.6 Memory at 15MB - 16MB..........................2-12
2.3.7 DRAM Leadoff Timing
(Read/Write/RAS#Pre)..............................2-13
2.3.8 RAS to CAS Delay....................................2-13
2.3.9 DRAM Write Burst Timing.........................2-13
2.3.10 DRAM Read Burst Timing (EDO/FPM).....2-14
2.3.11 ECC/Parity Mode Selection.......................2-14
2.4 PCI System Configuration........................................2-15
2.4.1 PCI IRQ Setting.........................................2-15
2.4.2 PCI IRQ Sharing.......................................2-16
2.4.3 VGA Palette Snoop...................................2-16
2.4.4 Plug & Play OS.........................................2-17
xii

2.4.5 Reset Resources Assignment...................2-17
2.5 Power Saving Configuration.....................................2-18
2.5.1 Power Management Mode........................2-19
2.5.2 Monitored Activities...................................2-20
2.6 System Security Setup.............................................2-21
2.6.1 Dis Drive Control.....................................2-21
2.6.2 Onboard Communication Ports.................2-23
2.6.3 Onboard PS/2 Mouse (IRQ 12).................2-26
2.6.4 Setup Password........................................2-26
2.6.5 Power On Password.................................2-29
2.7 Load Setup Default Settings.....................................2-30
2.8 Leaving Setup..........................................................2-31
List of Figures
1-1 System Board Layout.................................................1-3
1-2 Installing a CPU..........................................................1-5
1-3 Installing an OverDrive CPU.......................................1-6
1-4 Jumper and Connector Locations...............................1-7
1-5 20-Pin Multifunction Connector (CN16)...................1-10
1-6 Installing a SIMM......................................................1-13
1-7 Removing a SIMM....................................................1-14
1-8 Installing the Cache Module.....................................1-15
List of Tables
1-1 Clearances for OverDrive CPU and Heatsin .............1-6
1-2 System Board Jumper Settings..................................1-8
1-3 CPU Type Select........................................................1-8
1-4 CPU Frequency Select...............................................1-9
xiii

1-5 Second-level Cache Size Select................................1-9
1-6 Onboard Connectors................................................1-10
1-7 Memory Configurations............................................1-11
1-8 System Error Messages...........................................1-18
2-1 Drive Control Settings..............................................2-22
2-2 Serial Port 1 Settings................................................2-23
2-3 Serial Port 2 Settings................................................2-24
2-4 Parallel Port Settings................................................2-24
2-5 Parallel Port Operation Mode Settings.....................2-25
xiv

C h a p t e r
1
System Board
This high-performance system board utilizes a 64-bit, 3.3V Intel Pentiumâ
PU running at 75/50, 90/60, 100/66, 120/60, 133/66, 150/60, 166/66, or
200/66 MHz. It has three ISA and four P I slots (with one P I- and ISA-
shared slot) for future expansion. The onboard six 72-pin SIMM sockets
allow memory upgrade to a maximum of 192 MB. To further enhance
system performance, you may also upgrade the integrated 256-KB pipelined-
burst cache to 512 KB.
Standard features such as two serial ports, one parallel port, a diskette drive
interface, and an embedded hard disk interface are also incorporated in the
system board. A Universal Serial Bus (USB) interface is added to the design
to enable the system to support additional peripherals.
The system supports the power-management function that conforms to the
power-saving standards of the U.S. Environmental Protection Agency (EPA)
Energy Star program.. It also offers the Plug-and-Play feature. This feature
saves the user from configuration troubles, thus making the system more
user-friendly.
The system is fully compatible with MS-DOS V6.X, OS/2, UNIX, Windows
NT and Windows 95 operating systems.
System Board 1-1

1.1 System Board Layout
The system board has the following features and components:
·Supports 3.3V Intel Pentium PU (75/50, 90/60, 100/66, 120/60,
133/66, 150/60, 166/66, 200/66 MHz)
·192-MB maximum system memory
·Six 72-pin SIMM sockets that accept 4-, 8-, 16-, and 32-MB SIMMs,
with or without Extended Data Output (EDO) and Error hecking
and orrection (E ) functions
·256-KB/512-KB pipelined-burst second-level cache
·Integrates an enhanced P I local bus IDE controller
·128-KB Flash ROM for system BIOS
·Three ISA- and four P I-expansion slots (one P I- and ISA-shared slot)
·Dual 16 550 buffered serial ports and one E P/EPP parallel port
·Optional USB interface that enables the system to support more
peripherals
·PS/2 mouse and keyboard interface
·Plug-and-Play function
·Power-management function
Figure 1-1 shows the board layout and the locations of the important
components.
1-2User’s Guide

1 Super I/O controller 9 Ether-SCSI card slot
2 RTC battery 10 PCI slots
3 SI sockets 11 ISA slots
4 Tag RA 12 BIOS chip
5 256-KB pipelined-burst cache 13 PS/2 mouse connector
6 Cache module socket 14 PS/2 keyboard connector
7 CPU socket
8 Voltage regulators with heatsink
Figure 1-1 System Board Layout
The heatsink becomes very hot when the system is
on. NEVER touch the heatsink with any metal or
with your hands.
System Board 1-3
12
3
4 5
67
8
9
1
0
11
1
2
1
3
1
4

1.2 ESD Precautions
Electrostatic discharge (ESD) can damage your processor, disk drives,
expansion boards, and other components. Always observe the following
precautions before you install a system component.
1. Do not remove a component from its protective packaging until you are
ready to install it.
2. Wear a wrist grounding strap and attach it to a metal part of the system
unit before handling components. If a wrist strap is not available,
maintain contact with the system unit throughout any procedure
requiring ESD protection.
1.3 Pre installation Instructions
Always observe the following before you install a system component:
1. Turn off the system power and all the peripherals connected to the unit
before opening it.
2. Open the system according to the instructions in the housing installation
manual.
3. Follow the ESD precautions in section 1.2 before handling a system
component.
4. Remove any expansion boards or peripherals that block access to the
SIMM sockets or PU socket.
5. See the following sections for specific instructions on the component
you wish to install.
Do not attempt the procedures described in the
following sections unless you are a qualified
service technician.
1-4User’s Guide

1.4 Installing a CPU
1.4.1 Installation Procedures
Observe the ESD precautions when installing
components. See section 1.2.
The system board features a zero-insertion force (ZIF) socket for easy PU
installation.
Follow these steps to install a PU:
1. Pull up the socket lever.
2. Insert the PU, making sure that pin 1 (indicated by a notched corner)
of the PU connects to hole 1 of the socket.
3. Pull down the socket lever to lock the PU into the socket.
Step 1
Hole for Pin 1
Step 2
Step 3
Figure 1-2 Installing a CPU
System Board 1-5
Notched corner

1.4.2 Installing an OverDriveä CPU
The OverDrive PU comes with a heatsink already mounted. To maintain
proper airflow around the PU and heatsink, follow the required clearances
in Table 1-1.
Table 1-1 Clearances for OverDrive CPU and Heatsink
Location Minimum Clearance
Above the heatsink 0.4 inches
Sides of the PU (at least 3 of 4) 0.2 inches
Follow these steps to install an OverDrive PU:
1. Locate the PU socket and pull up the socket lever.
2. Remove the old PU carefully from the socket and place it in an
antistatic package.
3. Take the upgrade PU out of its antistatic package.
4. arefully insert the PU into the socket such that pin 1 (indicated by a
notched corner) of the PU connects to hole 1 of the socket.
Figure 1-3 Installing an OverDrive CPU
5. Push down the socket lever to lock the PU into the socket.
1-6User’s Guide
Notched orner