Acer V60N User manual

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System Board
System Board 1-1
The V60N is a high-performance system board with a 64-bit
architecture. It supports the new Intel Pentium Pro CPU running at
150/166/180/200 MHz and utilizes the Peripheral Component
Interconnect (PCI) local bus architecture. The PCI local bus
maximizes the system performance by enabling high-speed
peripherals to match the speed of the microprocessor with its 120 MB
or 132 MB per second transfer rate in burst mode.
The board comes with four ISA and four PCI slots for future
expansion. The six 72-pin SIMM sockets allow you to upgrade system
memory to a maximum of 384 MB.
Onboard I/O interfaces comprise of two UART 16C550 serial ports, a
parallel port with ECP/EPP feature, and PS/2 keyboard and mouse
ports. These allow the system to support various I/O devices.

1-2 User’s Guide
1.1 Major Features
The system board has the following major features and components:
•A zero-insertion force (ZIF) socket for Intel Pentium Pro CPU
series
•Six 72-pin SIMM sockets that support 4-/8-/16-/32-/64-MB, 60-ns
SIMMs, with Extended Data Out (EDO) or Fast Page Mode (FPM)
feature
•128-KB Flash ROM
•APM-compliant BIOS
•Onboard PCI local IDE controller
•Two PCI-enhanced IDE interfaces that support up to four IDE
devices
•SCSI and Ethernet function interface (optional)
•External ports:
•PS/2 keyboard and mouse ports
•Two buffered high-speed serial ports
•One ECP/EPP high-speed parallel port

System Board 1-3
1.2 Board Layout
Figure 1-1 shows the locations of the system board major
components.
1 Power connector
2 SIMM sockets
3 Battery
4 1.5V voltage regulator with heatsink
5 CPU socket
6 3.3V voltage regulator with heatsink
7 SCSI/LAN card slot
8 ISA slots
9 PCI slots
10 Buzzer
11 BIOS chip socket
12 Ultra I/O controller
13 PS/2 mouse connector
14 PS/2 keyboard connector
Figure 1-1 System Board Layout
1 2
3 4 5
6
7
8
9
13 12 11
10
14

1-4 User’s Guide
1.3 Jumpers and Connectors
1.3.1 Jumper and Connector Locations
Figure 1-2 shows the jumper and connector locations on the system
board.
Figure 1-2 System Board Jumper and Connector Locations
The blackened pin of a jumper or a connector
represents pin 1.

System Board 1-5
1.3.2 Jumper Settings
Table 1-1 lists the system board jumpers with their corresponding
settings and functions.
Table 1-1 Jumper Settings
Jumper Setting Function
Password Check
JP1 1-2
2-3 *Check password
Bypass password
Flash ROM Type
JP4 1-2 *
2-3 128-KB Flash ROM 256-KB Flash ROM
Frequency Select
JP5
Core/Bus Clk. Ratio
Switch No.
1 2 3 4 Frequency
On Off Off Off 60MHz
Off On Off Off 66MHz
5 6 7 8 Ratio
On On On On 2
On On Off On 3
On On On Off 4
On On Off Off 5
On Off On On 5/2
On Off Off On 7/2
On Off On Off 9/2
On Off Off Off 11/2
* Default

1-6 User’s Guide
Table 1-1 Jumper Settings (continued)
Jumper Setting Function
Voltage Setting
JP9, JP10,
JP12, JP13
JP9 JP10 JP12 JP13 Voltage
2-3 2-3 2-3 2-3 3.5V
2-3 2-3 1-2 2-3 3.4V
2-3 2-3 2-3 1-2 3.3V
1-2 1-2 2-3 2-3 3.2V
2-3 2-3 1-2 1-2 3.1V
1-2 2-3 2-3 2-3 3.0V
1-2 2-3 1-2 2-3 2.9V
1-2 2-3 2-3 1-2 2.8V
2-3 1-2 2-3 2-3 2.7V
1-2 2-3 1-2 1-2 2.6V
2-3 1-2 1-2 1-2 2.5V
Switch Function
JP11 1-3
2-4 External SMI Reset
S/W Shutdown/
Power Function
JP14 1-2
2-3 Software Shutdown Power Normal
BIOS Voltage
JP15 1-2
2-3 12V 5V

System Board 1-7
1.3.3 Connector Functions
Table 1-2 lists the different connectors on the system board and their
respective functions.
Table 1-2 Onboard Connectors
Connector Function
CN1 Software shutdown power connector
CN2 COM1 connector
CN3 IDE1 connector
CN4 IDE2 connector
CN5 COM2 connector
CN6 Parallel connector
CN7 Diskette drive connector
CN9 Infrared (IrDA) connector
CN10 HDD LED connector
CN11 Reset key
CO1 Power connector
CNY1 USB connector
JP2 Two-pin fan connector
JP6 Software power key
JP7 Speed LED
JP8 Power LED

1-8 User’s Guide
1.4 ESD Precautions
Always observe the following electrostatic discharge (ESD)
precautions before installing a system component:
1. Do not remove a component from its anti-static packaging until
you are ready to install it.
2. Wear a wrist grounding strap before handling electronic
components. Wrist grounding straps are available at most
electronic component stores.
Do not attempt the procedures described in
the following sections unless you are a
qualified technician.
1.5 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 1.4 before handling a
system component.
4. Remove any expansion boards or peripherals that block access
to the SIMM sockets or CPU socket.
5. See the following sections for specific instructions on the
component you wish to install.

System Board 1-9
Do not attempt the procedures described in
the following sections unless you are a
qualified service technician.
1.6 CPU Installation
The system board comes with a zero-insertion force (ZIF) CPU socket
for easy installation.
Follow these steps to install an Intel Pentium Pro CPU:
1. Locate the CPU socket on the system board and pull up the
socket lever.
2. Align pin 1 of the CPU with hole 1 of the socket. The dot on the
CPU indicates pin 1. The topmost label indicates the CPU
frequency and the cache size.
Figure 1-3 Locating Pin 1 of the CPU and Hole 1 of the Socket
Cache size supported
CPU frequency
Hole 1 Pin 1 indicator

1-10 User’s Guide
3. Gently insert the CPU into the socket.
4. Pull down the socket lever to lock the CPU into the socket.
Figure 1-4 Installing a CPU
5. Attach the heatsink and fan to the CPU.
Figure 1-5 Attaching the Heatsink and Fan to the CPU
Step 1 Step 3
Step 4