Acer ACERENTRA 1000, ACERENTRA 3000 Annexe 1

& K DSWHU

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System Board

1.1 Features

The V58 is a Pentium-based s ystem board that utilizes the PCI local bus architecture. It supports Intel Pentium P54C/P55C, Cyrix M1/M2, and AMD K5/K6 processors. It has three ISA and f our PCI slots for future expansion. The system m emory is expandable to 192 MB via three onboard 168-pin DIMM (double in-line memory module) sock ets. The board also comes with either 256- or 512-KB pipelined-burst second-level cache.

Onboard I/O interfaces include two UART 16C550 serial ports, a parallel port with Enhanced Parallel Port (EPP)/Extended Capabilities Port (ECP) feature, PS/2 keyboard and mouse por ts , and VGA por t. A Universal Serial Bus (USB) interf ace is added to the design to enable the system to support more peripherals.

Other special features supported are Wireless communication, Hardware monitoring and W ake-on ring-in functions. Thes e features are discussed in the later part of this chapter.

The system is fully compatible with Windows 95, Windows NT, NetWare, MS-DOS v6.X, OS/2, and UNIX operating systems.

System Board 1-1

1.2 Major Components

The system board has the following major components:

A ZIF (zero insertion force) socket that supports 3.3V Intel

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Pentium P54C/P55C processor running at 90/60, 100/66, 120/60, 133/66, 150/60, 166/66, 200/66, or 233/66 MHz. Also supports Cyrix M1/M2 or AMD K5/K6 processor

Three 168-pin DIMM sockets that accept SDRAMs with 16-, 32-,

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64-, and 128-MB capacities (192-MB maximum system memory) 256-KB or 512-KB pipelined-burst second-level cache

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Three ISA slots and four PCI slots for future expansion

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Enhanced PCI local bus IDE controller

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APM-compliant DMI BIOS

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Ultra I/O controller

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Two IDE interfaces capable of s upporting a m axim um of f our IDE

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devices Two 16C550 buffered serial connectors

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One SPP/ECP/EPP parallel connector

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USB interface

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IrDA interface

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Modem ring-in interface for Wake-on ring-in feature

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PS/2 mouse and keyboard interface

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1-2 User’s Guide

1.3 Layout

Figure 1-1 shows the board layout and the locations of the important components.

1 COM1 connector 14 HDD LED connector 2 Power connector 15 Voltage regulator with heatsink 3 Parallel/Printer connector 16 InfraRed (IrDA) connector 4 Floppy disk drive connector 17 ISA slots 5 COM2 connector 18 PCI slots 6 IDE2 connector 19 USB connector 7 IDE1 connector 20 BIOS chip 8 DIMM sockets 21 Battery 9 Second-level cache 22 Resume Power connector 10 CPU socket 23 PS/2 mouse port 11 Power button connector 24 PS/2 keyboard port 12 Multifunction connector 25 Ring-in connector 13 2-pin fan connector

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

1.4 Jumpers and Connectors

1.4.1 Jumper and Connector Locations

Figure 1-2 shows the jumper and connector locations.

Figure 1-2 Jumper and Connector Locations

The shaded pin indicates pin 1.

1-4 User’s Guide

1.4.2 Jumper Settings

The following tables list the jumper settings and their corresponding functions:

Table 1-1 Jumper Settings

Jumper Setting Function

Power Supply Type

JP1

1-3, 2-4 3-5, 4-6

JP4 1-2

2-3 *

JP5 1-2

2-3 3-4 *

JP7

1-2 3-4 5-6 *

Traditional power supply Resume power supply

L2 Burst Mode

Linear burst Interleave / 1+4 mode

BIOS Programming Voltage

12V for MX2 2MB 5V for SST, ATMEL Normal operation

Hardware Monitoring Vcore

3.2V

2.9V

2.8V

JP9

1-2 3-4 *

JP10

1-2 2-3 *

JP8 1-3, 2-4

3-5, 4-6

VI/O

3.5V

3.3V

Thermal Event

Disabled Enabled

CPU Type

Dual-voltage CPU (P55C) Single-voltage CPU (P54C)

Default

System Board 1-5

Table 1-1 Jumper Settings (continued)

)

Jumper Setting Function

CPU Core Voltage

JP11 1-2 *

3-4 5-6 7-8 9-10

S2 of SW1 On

Off

S3 of SW1 On

Off

3.3V

2.8V

2.9V

3.2V

3.5V

Boot Logo

OEM Acer

Password Check

Check password Bypass password

Table 1-2 Host Bus Frequency Select

JP2 JP3 Host Bus

1-3, 2-4 3-5, 4-6 60 MHz 3-5, 4-6 * 3-5, 4-6 * 66 MHz * 1-3, 2-4 1-3, 2-4 75 MHz 3-5, 4-6 1-3, 2-4 83.3 MHz

Table 1-3 CPU/Host Bus Frequency Ratio

SW1 Switch No. Ratio

S4 S5

(BF1/X34

(BF0/Y33)

Intel M2 6x86L K6

Off Off Off 1.5/3.5 3.5 3 3.5 Off Off On 2 2 2 Off On On 2.5 2.5 2 2.5 OffOnOff3333

1-6 User’s Guide

1.4.3 Onboard Connectors

Table 1-4 lists the onboard connectors.

Table 1-4 Onboard Connectors

Connector Function

CN1 COM1 connector CN2 COM2 connector CN3 AT keyboard connector (optional) CN4 PS/2 keyboard port CN5 PS/2 mouse port CN6 Resume power connector CN7 Main power connector CN8 Printer/parallel connector CN9 Floppy disk drive connector CN10 IDE channel 2 connector CN11 IDE channel 1 connector CN12 Connector for clearing CMOS CN13 WOL (wake-on LAN) connector CN15 IrDA (InfraRed) connector CN16 Modem ring-in connector CN17 USB (Universal Serial Bus) connector CN18 Power button connector CN19 Multifunction connector CN20 HDD LED connector CN21 CPU fan connector CN22 CPU fan and H/W monitoring connector

System Board 1-7

1.4.4 Front Panel Connectors

The following figure shows the pin orientation of the front panel connectors available on board:

Figure 1-3 Front Panel Connectors

1-8 User’s Guide

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