Acer AcerPower 3000 User manual

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System Board
System Board 1-1
1.1 Features
The V58LA is an all-in-one Pentium-based system board that utilizes
the PCI local bus architecture. It is capable of offering multimedia and
network functions by simply integrating a VGA controller with 3D
support, a Sound Blaster-compatible audio chip, and a Fast Ethernet
controller.
The system memory is expandable to 256 MB via two onboard 168-pin
DIMM (double in-line memory module) sockets. To further enhance
system performance, the board also comes with 256-/512-KB
pipelined-burst second-level cache and 1/2/4-MB video memory.
Standard onboard I/O interfaces comprise of 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. Two Universal Serial Bus (USB) interfaces are added to the
design to enable the system to support more peripherals. For full
multimedia support, video, audio and network interfaces are also
provided.
Other special features supported are Hardware Monitoring and
Wake-on Ring-in functions. For details, read the following sections.
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
•Two 168-pin DIMM sockets that accept SDRAMs with 8, 16, 32,
64, and 128-MB capacities (256-MB maximum system memory)
•256-KB or 512-KB pipelined-burst second-level cache
•Onboard video memory (1-/2-/4-MB SGRAM)
•One riser card slot for future expansion
•Enhanced PCI local bus IDE controller
•Onboard VGA with 2D/3D support
•Onboard 16-bit PnP audio controller, Sound Blaster-compatible
•Onboard 100Base-TX/10Base-T Ethernet controller with Wake-
on LAN solution (optional)
•APM-compliant DMI BIOS
•Ultra I/O controller
•Two 16C550 buffered serial ports and one SPP/ECP/EPP parallel
port
•Two USB interfaces, Open HCI 1.0a compliant
•VGA AMC connector to support TV-tuner, MPEG and H/W
capture
•Audio interface, includes fax/modem and CD-audio
•Fast Ethernet interface
•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 Riser card slot 17 Aux. line-in connector
2 Ultra I/O controller 18 AMC connector
3 LAN controller 19 Modem ring-in connector
4 Power connector 20 Video controller
5 Battery 21 Video port
6 Standby connector 22 Printer port
7 BIOS chip 23 COM2/USB port
8 Audio controller 24 COM1 port
9 AIO board connector 25 PS/2 mouse port
10 Fax/modem connector 26 PS/2 keyboard
11 CD-in and Line-in connectors 27 LAN port
12 Pipelined-burst cache 28 USB board connector
13 Voltage regulators with heatsink 29 SGRAMs (video memory)
14 DIMM sockets 30 Floppy disk drive connector
15 CPU socket 31 IDE 2 connector
16 Buzzer 32 IDE 1 connector
Figure 1-1 System Board Layout
1 2 3
4 5 6
7 89
10 12
13
14
29
16
15
17
18
19
20
21
22
23
24
25
26
27
32
31
30
28
11

1-4 User’s Guide
The heatsink becomes very hot when the
system is on. NEVER touch the heatsink with
any metal or with your hands.
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 1-2
2-3
BIOS Logo
Acer
OEM
JP2 1-2
2-3
LED Function
for IDE and FDD
for IDE only
JP3 1-2
2-3 *
Suspend/Reset Switch Function
Suspend
Reset
JP5 1-2
2-3
L2 Cache Mode
Intel or Cyrix M1/M2 “1+4” mode
Cyrix M1/M2 linear-burst mode
JP10 3-5, 4-6
1-3, 2-4
Power Supply Type
With standby power current > 1A
With standby power current < 1A
CN23 1-3, 2-4
3-5, 4-6
CPU Voltage Option
Single-voltage CPU (P54C)
Dual-voltage CPU (P55C)
CN36 1-2
3-4
5-6
7-8
9-10
Vcore Select
2.8V
2.9V
3.2V
3.31V
3.52V
S1 Switch 1
On
Off
Password Check
Bypass password
Check password

1-6 User’s Guide
Table 1-1 Jumper Settings (continued)
Jumper Setting Function
S1 Switch 2
On
Off
Switch 3
On
Off
Switch 6
On
Off
Onboard Sound
Disabled
Enabled
Onboard LAN
Disabled
Enabled
Clock Select
Cypress CY2273
Clk 9148
Table 1-2 Host Bus Frequency Select
Jumper 60 MHz 66 MHz 75 MHz 83 MHz
CY2273
JP14 1-3, 2-4 1-3, 2-4 3-5, 4-6 3-5, 4-6
JP15 1-3, 2-4 3-5, 4-6 1-3, 2-4 3-5, 4-6
Table 1-3 CPU/Host Bus Frequency Ratio Select
S1 CPU/Host Bus Frequency Ratio
JP11 switch 4 switch 5 Intel AMD Cyrix
2-3 On On 2.5 2.5 2.5
2-3 Off Off 1.5/3.5 1.5/3.5 3.5
2-3 Off On 2.0 2.0 2.0
2-3 On Off 3.0 3.0 3.0
1-2 Off On 4.0
1-2 On On 4.5

System Board 1-7
Table 1-4 CPU Type and Frequency Select
CPU
Freq.
(MHz) JP11 JP14 JP15 S1
switch 4 S1 switch 5 CN23 CN36
Intel P54C
P90 2-3 1-3, 2-4 1-3, 2-4 Off Off 1-3, 2-4 7-8
P100 2-3 1-3, 2-4 3-5, 4-6 Off Off 1-3, 2-4 7-8
P120 2-3 1-3, 2-4 1-3, 2-4 Off On 1-3, 2-4 7-8
P133 2-3 1-3, 2-4 3-5, 4-6 Off On 1-3, 2-4 7-8
P150 2-3 1-3, 2-4 1-3, 2-4 On On 1-3, 2-4 7-8
P166 2-3 1-3, 2-4 3-5, 4-6 On On 1-3, 2-4 7-8
P200 2-3 1-3, 2-4 3-5, 4-6 On Off 1-3, 2-4 7-8
Intel P55C
P150 2-3 1-3, 2-4 1-3, 2-4 On On 3-5, 4-6 1-2
P166 2-3 1-3, 2-4 3-5, 4-6 On On 3-5, 4-6 1-2
P200 2-3 1-3, 2-4 3-5, 4-6 On Off 3-5, 4-6 1-2
P233 2-3 1-3, 2-4 3-5, 4-6 Off Off 3-5, 4-6 1-2
Cyrix M1 (6x86)
P150+ 2-3 1-3, 2-4 1-3, 2-4 Off On 1-3, 2-4 7-8
P166+ 2-3 1-3, 2-4 3-5, 4-6 Off On 1-3, 2-4 7-8
P200+ 2-3 3-5, 4-6 1-3, 2-4 Off On 1-3, 2-4 7-8
Cyrix M1 (6x86L)
P150+ 2-3 1-3, 2-4 1-3, 2-4 Off On 3-5, 4-6 1-2
P166+ 2-3 1-3, 2-4 3-5, 4-6 Off On 3-5, 4-6 1-2
P200+ 2-3 3-5, 4-6 1-3, 2-4 Off On 3-5, 4-6 1-2
Cyrix MX
PR166 2-3 1-3, 2-4 1-3, 2-4 On On 3-5, 4-6 3-4
PR200 2-3 1-3, 2-4 3-5, 4-6 On On 3-5, 4-6 3-4
PR233 2-3 3-5, 4-6 1-3, 2-4 On On 3-5, 4-6 3-4

1-8 User’s Guide
Table 1-4 CPU Type and Frequency Select (continued)
CPU
Freq.
(MHz) JP11 JP14 JP15 S1
switch 4 S1 switch 5 CN23 CN36
AMD K5
PR90 2-3 1-3, 2-4 1-3, 2-4 Off Off 1-3, 2-4 9-10
PR100 2-3 1-3, 2-4 3-5, 4-6 Off Off 1-3, 2-4 9-10
PR120 2-3 1-3, 2-4 1-3, 2-4 Off On 1-3, 2-4 9-10
PR133 2-3 1-3, 2-4 3-5, 4-6 Off On 1-3, 2-4 9-10
PR166 2-3 1-3, 2-4 3-5, 4-6 On On 1-3, 2-4 9-10
AMD K6
PR166 2-3 1-3, 2-4 3-5, 4-6 On On 3-5, 4-6 5-6
PR200 2-3 1-3, 2-4 3-5, 4-6 On Off 3-5, 4-6 5-6
PR233 2-3 1-3, 2-4 3-5, 4-6 Off Off 3-5, 4-6 5-6
1.4.3 Onboard Connectors
Table 1-5 lists the onboard connectors.
Table 1-5 Onboard Connectors
Connector Function
CN1 Ethernet connector
CN2 PS/2 keyboard port
CN3 PS/2 mouse port
CN4 COM1 port
CN6 COM2 port (USB port - optional)
CN7 Printer port

System Board 1-9
Table 1-5 Onboard Connectors (continued)
Connector Function
CN8 Monitor port
CN9 USB board connector
CN10 Standby power connector
CN11 Power connector
CN12 Floppy disk drive connector
CN13 IDE 2 connector
CN14 IDE 1 connector
CN15 AIO board connector
CN18 CD-in connector
CN19 Line-in connector
CN22 Two-pin fan connector
CN26 Modem ring-in connector
CN27 AMC connector
CN28 Auxiliary line-in connector (for add-on card)
CN30 Power LED connector
CN31 Message-in LED/HDD LED connector
CN32 Power button connector
CN34 External speakers connector
CN35 Reset/Suspend switch connector
JPA1
2-4
7-8 Turbo LED connector Power button connector
(for Aspire 6-pin connector

1-10 User’s Guide
1.5 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.
1.6 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 1.5 before handling a
system component.
4. Remove any expansion boards or peripherals that block access
to the DIMM sockets or CPU 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.