Acer V58 User manual

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System Board
System Board 1-1
1.1 Features
The V58 is a Pentium-based system 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 four PCI slots for
future expansion. The system memory is expandable to 192 MB via
three onboard 168-pin DIMM (double in-line memory module) sockets.
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 ports, and VGA port. A
Universal Serial Bus (USB) interface is added to the design to enable
the system to support more peripherals.
Other special features supported are Wireless communication,
Hardware monitoring and Wake-on ring-in functions. These 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.

1-2 User’s Guide
1.2 Major Components
The system board has the following major components:
•A ZIF (zero insertion force) socket that supports 3.3V Intel
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-,
64-, and 128-MB capacities (192-MB maximum system memory)
•256-KB or 512-KB pipelined-burst second-level cache
•Three ISA slots and four PCI slots for future expansion
•Enhanced PCI local bus IDE controller
•APM-compliant DMI BIOS
•Ultra I/O controller
•Two IDE interfaces capable of supporting a maximum of four IDE
devices
•Two 16C550 buffered serial connectors
•One SPP/ECP/EPP parallel connector
•USB interface
•IrDA interface
•Modem ring-in interface for Wake-on ring-in feature
•PS/2 mouse and keyboard interface

System Board 1-3
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.
1 2
345
6789
10 11 12
13
14
15
16
17
18
19
20
21
23
24
22
25

1-4 User’s Guide
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.

System Board 1-5
1.4.2 Jumper Settings
The following tables list the jumper settings and their corresponding
functions:
Table 1-1 Jumper Settings
Jumper Setting Function
JP1 1-3, 2-4
3-5, 4-6 *
Power Supply Type
Traditional power supply
Resume power supply
JP4 1-2
2-3 *
L2 Burst Mode
Linear burst
Interleave / 1+4 mode
JP5 1-2
2-3
3-4 *
BIOS Programming Voltage
12V for MX2 2MB
5V for SST, ATMEL
Normal operation
JP7
JP9
JP10
1-2
3-4
5-6 *
1-2
3-4 *
1-2
2-3 *
Hardware Monitoring
Vcore
3.2V
2.9V
2.8V
VI/O
3.5V
3.3V
Thermal Event
Disabled
Enabled
JP8 1-3, 2-4
3-5, 4-6
CPU Type
Dual-voltage CPU (P55C)
Single-voltage CPU (P54C)
*Default