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

System Board 1-11
6. Plug in the fan cable to the two-pin fan connector marked JP2 on
the system board.
1.7 Memory Configurations
The system board comes with six 72-pin SIMM sockets that support 4-
MB and 16-MB single-density SIMMs and 8-MB and 32-MB double-
density SIMMs, with or without the Extended Data Out (EDO) function.
Table 1-3 lists the possible memory configurations.
1.7.1 Rules for Adding Memory
•Use only one type of SIMM in a given bank.
•You may combine different types of SIMMs for a memory
configuration as long as the SIMMs in each bank are of the same
type.
•Always install SIMMs in pairs. For example, for a total memory of
8 MB, install two 4-MB SIMMs into the sockets marked S1 and S2
or S3 and S4. You can not use an 8-MB SIMM alone for an 8-MB
memory.
•Always install SIMMs from the outermost socket first. For
example, socket S1 before socket S2, or socket S3 before
socket S4.
•Always remove SIMMs from the innermost socket first. For
example, socket S4 before socket S3, or socket S2 before
socket S1.

1-12 User’s Guide
Table 1-3 Memory Configurations
Bank 1 Bank 2 Bank 3 Total
S1 S2 S3 S4 S5 S6 Memory
4 MB 4 MB 8 MB
4 MB 4 MB 4 MB 4 MB 16 MB
4 MB 4 MB 4 MB 4 MB 4 MB 4 MB 24 MB
8 MB 8 MB 16 MB
8 MB 8 MB 4 MB 4 MB 24 MB
8 MB 8 MB 4 MB 4 MB 4 MB 4 MB 32 MB
8 MB 8 MB 8 MB 8 MB 32 MB
8 MB 8 MB 8 MB 8 MB 4 MB 4 MB 40 MB
8 MB 8 MB 8 MB 8 MB 8 MB 8 MB 48 MB
16 MB 16 MB 32 MB
16 MB 16 MB 4 MB 4 MB 40 MB
16 MB 16 MB 4 MB 4 MB 4 MB 4 MB 48 MB
16 MB 16 MB 8 MB 8 MB 48 MB
16 MB 16 MB 8 MB 8 MB 4 MB 4 MB 56 MB
16 MB 16 MB 8 MB 8 MB 8 MB 8 MB 64 MB
16 MB 16 MB 16 MB 16 MB 64 MB
16 MB 16 MB 16 MB 16 MB 4 MB 4 MB 72 MB
16 MB 16 MB 16 MB 16 MB 8 MB 8 MB 80 MB
16 MB 16 MB 16 MB 16 MB 16 MB 16 MB 96 MB
32 MB 32 MB 64 MB
32 MB 32 MB 4 MB 4 MB 72 MB
32 MB 32 MB 4 MB 4 MB 4 MB 4 MB 80 MB
32 MB 32 MB 8 MB 8 MB 80 MB
32 MB 32 MB 8 MB 8 MB 4 MB 4 MB 88 MB
32 MB 32 MB 8 MB 8 MB 8 MB 8 MB 96 MB
32 MB 32 MB 16 MB 16 MB 96 MB
32 MB 32 MB 16 MB 16 MB 4 MB 4 MB 104 MB
32 MB 32 MB 16 MB 16 MB 8 MB 8 MB 112 MB

System Board 1-13
Table 1-3 Memory Configurations (continued)
Bank 1 Bank 2 Bank 3 Total
S1 S2 S3 S4 S5 S6 Memory
32 MB 32 MB 16 MB 16 MB 16 MB 16 MB 128 MB
32 MB 32 MB 32 MB 32 MB 128 MB
32 MB 32 MB 32 MB 32 MB 4 MB 4 MB 136 MB
32 MB 32 MB 32 MB 32 MB 8 MB 8 MB 144 MB
32 MB 32 MB 32 MB 32 MB 16 MB 16 MB 160 MB
32 MB 32 MB 32 MB 32 MB 32 MB 32 MB 192 MB
64 MB 64 MB 128 MB
64 MB 64 MB 4 MB 4 MB 136 MB
64 MB 64 MB 4 MB 4 MB 4 MB 4 MB 144 MB
64 MB 64 MB 8 MB 8 MB 144 MB
64 MB 64 MB 8 MB 8 MB 4 MB 4 MB 152 MB
64 MB 64 MB 8 MB 8 MB 8 MB 8 MB 160 MB
64 MB 64 MB 16 MB 16 MB 160 MB
64 MB 64 MB 16 MB 16 MB 4 MB 4 MB 168 MB
64 MB 64 MB 16 MB 16 MB 8 MB 8 MB 176 MB
64 MB 64 MB 16 MB 16 MB 16 MB 16 MB 192 MB
64 MB 64 MB 32 MB 32 MB 192 MB
64 MB 64 MB 32 MB 32 MB 4 MB 4 MB 200 MB
64 MB 64 MB 32 MB 32 MB 8 MB 8 MB 208 MB
64 MB 64 MB 32 MB 32 MB 16 MB 16 MB 224 MB
64 MB 64 MB 32 MB 32 MB 32 MB 32 MB 256 MB
64 MB 64 MB 64 MB 64 MB 256 MB
64 MB 64 MB 64 MB 64 MB 4 MB 4 MB 264 MB
64 MB 64 MB 64 MB 64 MB 8 MB 8 MB 272 MB
64 MB 64 MB 64 MB 64 MB 16 MB 16 MB 288 MB
64 MB 64 MB 64 MB 64 MB 32 MB 32 MB 320 MB
64 MB 64 MB 64 MB 64 MB 64 MB 64 MB 384 MB

1-14 User’s Guide
1.7.2 Installing a SIMM
Follow these steps to install a SIMM:
1. Carefully slip a SIMM at a 45°angle into a socket making sure
that the curved edge indicating the pin 1 of the SIMM matches
pin 1 of the socket.
A SIMM fits only in one direction. If you slip
in a SIMM but would not completely fit, you
may have inserted it the wrong way. Reverse
the orientation of the SIMM.
2. Gently push the SIMM to a vertical position until the pegs of the
socket slip into the holes on the SIMM, and the holding clips lock
the SIMM into position. The SIMM should be at a 90°angle when
installed.
Figure 1-6 Installing a SIMM
Hole
Peg
Pin 1 Indicator
(curved edge)
12

System Board 1-15
1.7.3 Removing a SIMM
Follow these steps to remove a SIMM:
1. Press the holding clips on both sides of the SIMM outward to
release it.
2. Move the SIMM to a 45°angle.
3. Pull the SIMM out of the socket.
Figure 1-7 Removing a SIMM
1
2
3
Holding Clip

1-16 User’s Guide
1.7.4 Reconfiguring the System
You must enter Setup after installing or removing SIMMs to
reconfigure the system.
Follow these steps to reconfigure the system:
1. Turn on the system. A memory error message appears,
indicating that the total memory does not match the value stored
in CMOS.
2. Press + + to enter Setup. A warning message
appears indicating a wrong memory configuration.
3. Press twice to exit and reboot the system.
The system boots with the new memory configuration.
1.8 IDE Hard Disk Support
The system board supports four IDE hard disks, or any other IDE
devices, through the two onboard PCI IDE interfaces. See Figure 1-2
for the location of the IDE interfaces.
Follow the instructions in the housing installation manual on how to
install a hard disk in the system. Connect the cables according to the
IDE hard disk configuration in Table 1-4.
Table 1-4 IDE Hard Disk Configuration
IDE Connector Master Slave
Channel 1 Hard disk 0 Hard disk 1
Channel 2 Hard disk 2 Hard disk 3/
IDE CD-ROM drive

System Board 1-17
1.9 Installing ISA Cards
Both PnP and non-PnP ISA cards require specific IRQs. When
installing ISA cards, make sure that the IRQs required by these cards
are not previously assigned to PCI devices to avoid resource conflicts.
Follow these steps when installing ISA cards:
1. Turn off the system and remove all PnP cards installed, if any.
2. Turn on the system ,enter BIOS utility and set the Reset
Resource Assignment parameter to Yes to clear the resource
data assigned to the PnP devices. Refer to section 2.4.5.
3. Turn off the system and install non-PnP ISA cards.
4. Turn on the system.
5. Use Windows 95 or ICU to manually assign the appropriate IRQs
to the cards. This ensures that BIOS will not use the resources
assigned to the non-PnP ISA cards.
BIOS detects and configures only PnP cards.
6. Turn off the system.
7. Install PnP ISA and PCI cards.
8. Turn on the system. This time PnP BIOS automatically
configures the PnP ISA and PCI cards with the remaining free
IRQs.

1-18 User’s Guide
1.10 Post-installation Instructions
Observe the following after installing a system component:
1. See to it that the components are installed according to the step-
by-step instructions in their respective sections.
2. Make sure you have set all the required jumpers. See section
1.3.2 for the correct jumper settings.
3. Replace any expansion boards or peripherals that you removed
earlier.
4. Replace the system cover.
5. Connect the necessary cables and turn on the system.
1.11 Error Messages
Do not continue using the computer if you receive an error message of
any type. Note the message and take corrective action. This section
explains the different types of error messages and corresponding
corrective measures.
There are two general types of error messages:
•Software
•System
1.11.1 Software Error Messages
Software error messages are returned by your operating system or
application. These messages typically occur after you boot the
operating system or when you run your applications. If you receive
this type of message, consult your application or operating system
manual for help.

System Board 1-19
1.11.2 System Error Messages
A system error message indicates a problem with the computer itself.
A message of this type normally appears during the power-on self-test,
before the operating system prompt appears.
Table 1-5 lists the system error messages.
Table 1-5 System Error Messages
Message Action
CMOS Battery Error Replace the RTC chip or contact
your dealer.
CMOS Checksum Error Check the RTC chip and the
necessary jumper. If the battery is
still good, run Setup.
Display Card Mismatch Run Setup
Diskette Drive Controller
Error or Not Installed Check and connect the control cable to the diskette controller.
Diskette Drive Error Diskette may be defective. If not,
replace the diskette drive.
Diskette Drive A Type
Mismatch Run Setup and select the proper drive type.
Diskette Drive B Type
Mismatch Run Setup and select the proper drive type.
Equipment
Configuration Error Modify the memory configuration to agree with one of the options in
Table 1-3.
Hard disk Controller
Error Run Setup.
Hard disk 0 Error Check all cable connections.
Replace hard disk.
Hard disk 1 Error Check all cable connections.
Replace hard disk.
Keyboard Error or No
Keyboard Connected Check and connect the keyboard to the system unit.

1-20 User’s Guide
Table 1-5 System Error Messages (continued)
Message Action
Keyboard Interface
Error Replace the keyboard or contact your dealer.
Memory Error at:
MMMM:SSSS:OOO
(W:XXXX, R:YYYY)
where:
M: MB, S: Segment,
O: Offset,
X/Y: write/read pattern
Check SIMMs on the system board.
Contact your dealer.
CPU Clock Mismatch Run Setup. Check if the CPU clock is
correct. If correct, exit Setup and
reboot the system. If the error
message reappears, ask for technical
assistance.
Onboard Serial Port 1
Conflict Run Setup and disable the port.
Onboard Serial Port 2
Conflict Run Setup and disable the port.
Onboard Parallel Port
Conflict Run Setup and disable the port.
Pointing Device Error Check and connect pointing device.
Pointing Device
Interface Error Replace the pointing device or contact your dealer.
Press F1 key to
continue or Ctrl-Alt-Esc
for Setup
Press or + + to enter
Setup.
Real Time Clock Error Check the RTC chip. If it is still good,
run Setup. If not, replace the RTC
chip.