& K DSWHU
System Board
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 of fer ing m ultim edia and
network functions by simply integrating a VGA controller with 3D
support, a Sound Blaster-compatible audio c hip, 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 com prise 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.
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
•
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 acc ept 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
•
1-2 User’s Guide
1.3 Layout
Figure 1-1 shows the board layout and the locations of the important
components.
9
8
7
6
5
4
3
2
1
28
27
26
25
24
23
22
21
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
29
20
19
32
10
31
18
30
11
12
13
16
17
14
15
Figure 1-1 System Board Layout
System Board 1-3
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.
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
BIOS Logo
JP1
1-2
2-3
JP2 1-2
2-3
JP3 1-2
2-3 *
JP5 1-2
2-3
JP10 3-5, 4-6
1-3, 2-4
CN23 1-3, 2-4
3-5, 4-6
CN36 1-2
3-4
5-6
7-8
9-10
Acer
OEM
LED Function
for IDE and FDD
for IDE only
Suspend/Reset Switch Function
Suspend
Reset
L2 Cache Mode
Intel or Cyrix M1/M2 “1+4” mode
Cyrix M1/M2 linear-burst mode
Power Supply Type
With standby power current > 1A
With standby power current < 1A
CPU Voltage Option
Single-voltage CPU (P54C)
Dual-voltage CPU (P55C)
Vcore Select
2.8V
2.9V
3.2V
3.31V
3.52V
S1
Switch 1
On
Off
Password Check
Bypass password
Check password
System Board 1-5
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 sw itch 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
1-6 User’s Guide
Table 1-4 CPU Type and Frequency Select
CPU
Freq.
(MHz) JP11 JP14 JP15
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
S1
switch 4S1switch 5
CN23 CN36
System Board 1-7
Table 1-4 CPU Type and Frequency Select (continued)
CPU
Freq.
(MHz) JP11 JP14 JP15
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
S1
switch 4S1switch 5
CN23 CN36
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
1-8 User’s Guide
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
System Board 1-9