Acer AcerPower 6200 User manual

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System Board
System Board 1-1
The V62X is a high-performance system board that utilizes the new
Intel Pentium II processor. This processor has a built-in MMX
(Multi-Media Extensions) technology that makes the system capable of
handling and enhancing the performance of 32-bit applications and
multimedia functions.
The system board supports PnP (Plug-and-Play) and power
management functions. In addition, it also offers the hardware monitor
function. This DMI (Desktop Management Interface) feature enables
you to monitor the system resources of your PC or of systems in a
network.
For expansion, the system board integrates in its design three ISA and
four PCI slots. It also has a SCSI (Small Computer System Interface)
/LAN (Local Area Network) interface to support SCSI devices and
network functions. The six SIMM (Single In-line Memory Module)
sockets on board allow you to upgrade the system memory to a
maximum of 384 MB.
Notice that the board does not come with an external second-level
cache. This is because the second-level cache is already integrated in
the Pentium II CPU card. The CPU card may come with 256-KB or
512-KB second-level cache size.
The board comes with standard I/O interfaces such as two UART
16C550 serial ports, a parallel port with SPP (Standard Parallel
Port)/ECP (Extended Capabilities Port)/EPP (Enhanced Parallel Port)
feature, PS/2 keyboard and mouse ports. The board also includes a
USB (Universal Serial Bus) interface to enable the system to support
additional peripherals.

1-2 User’s Guide
1.1 Major Features
The system board has the following major features and components:
•Supports Intel Pentium II processor running at 233 or 266 MHz
•256/512-KB PBSRAM (Pipelined-burst SRAM) second-level
cache (incorporated in the CPU card)
•Six SIMM sockets that accepts FPM (Fast Page Mode) and EDO
(Extended Data Out) RAMs for memory upgrade
•Onboard PCI local bus IDE controller
•Onboard 256K Flash BIOS ROM
•Three ISA and four PCI slots for future expansion
•SCSI and Ethernet combo card interface
•Two PCI enhanced IDE interfaces that support up to four IDE
devices
•External ports:
•PS/2 keyboard and mouse ports
•Two buffered high-speed serial ports
•One SPP/ECP/EPP high-speed parallel port
•Two USB ports
•Power management features
•APM v1.2 (Advanced Power Management)-compliant BIOS
•API (Application Program Interface) feature
•ATA (Advanced Technology Attachment)-compliant hard disk
power saving feature
•PnP (Plug-and-Play) feature
•Windows 95 software shutdown support
•ADM (Advanced Desktop Manager) hardware monitor function
•ATX form factor

System Board 1-3
1.2 Board Layout
Figure 1-1 shows the locations of the system board major
components.
1 72-pin SIMM sockets
2 3.3V regulator
3 1.5V regulator
4 Pentium II connector
5 PCI local bus IDE controller
6 SCSI/LAN card slot
7 Ultra I/O controller
8 Buzzer
9 ISA slots
10 PCI slots
11 Flash BIOS ROM
12 COM1/2 ports
13 Printer port
14 PS/2 mouse port
15 PS/2 keyboard port
16 USB ports
Figure 1-1 System Board Layout
1
4
5 6 7
8
9
10
11
12
13
14
16
15
2 3

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
Power On Setting
(only for S/W power supply)
JP1 1-2
2-3 *Test mode
Normal mode
CPU select
JP3, JP4, JP5 Jumpers
JP3 JP4 JP5 CPU
1-2 1-2 1-3, 2-4 Pentium Pro
2-3 * 2-3 * 3-5, 4-6 * Pentium II
ROM Select
JP6 1-2
2-3
Open *
EPROM
Flash EEROM & 28F001
29EE010/020
Frequency Select
SW1 Switch No.
1 2 Host Clock PCI Clock
On On Reserved Reserved
Off On 60 MHz 30 MHz
On * Off * 66 MHz 33 MHz
Off Off XIN/2 XIN/4
Password Check
SW1 (Switch No. 3) On *
Off Bypass password Check password
BIOS Logo
SW1 (Switch No. 4) On
Off * OEM BIOS Acer BIOS
*Default setting

1-6 User’s Guide
Table 1-1 Jumper Settings (continued)
Jumper Setting Function
Core/Bus Ratio
SW1 Switch No.
5 6 7 8 Core/Bus 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 2.5
On Off Off On 3.5
On Off On Off 4.5
On Off Off Off 5.5
OffOnOnOn 6
Off On Off On 7
OffOnOnOff 8
Off Off On On 6.5
Off Off Off On 7.5
Off Off On Off 1.5
Off Off Off Off 2
Off On Off Off Reserved

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 Power connector
CN3 USB port(s)
CN4 PS/2 keyboard port
CN5 In-Target Probe (ITP) debug port
CN6 PS/2 mouse port
CN7 Parallel/printer port
CN9 COM1/2 port(s)
CN10 HDD channel 2 connector
CN11 HDD channel 1 connector
CN12 InfraRed (IrDA) connector
CN13 FDD connector
CN14 Multifunction connector
Pin No. Function
2-6 Power LED
7-8 Reset
1-3 Speaker
JP2 Standby power cable connector
JP8 Software power control connector
JP7 HDD LED connector

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 Pentium II Processor
The board supports the Pentium II processor - a module that consists
of a Pentium Pro technology-based CPU and a second-level cache. It
utilizes the new enclosed packaging technology called S.E.C (single-
edge contact) cartridge, that allows the second-level cache to remain
tightly coupled to the processor. It is capable of increasing the
performance of 32-bit software and multimedia applications
The Pentium II processor also supports the following features:
•64-bit Pentium Pro technology-based CPU running a 233 or 266
MHz
•MMX technology support for multimedia functions
•32-KB internal cache size
•256-/512-KB write-back second-level cache size
•Non-blocking architecture to prevent CPU stalls during cache,
memory and I/O accesses

1-10 User’s Guide
1.6.1 Installing a Pentium II Processor
Observe the ESD precautions when installing
or removing a system component.
Follow these steps to install a Pentium II processor:
1. Place the retention mechanism over the CPU connector on the
system board. Secure it with the screws that came with the
package.
Figure 1-3 Installing the Retention Mechanism
2. Remove the Pentium II processor from its protective packaging.
Make sure that the latches on the sides of the module are not
pressed.
3. With the processor card golden fingers pointing downward, align
the processor to the posts of the retention mechanism.
4. Lower the processor into to the CPU connector on the system
board until the golden fingers touch the connector.

System Board 1-11
5. Press down the processor until the golden fingers completely fit
into the connector and the latches on the sides lock the processor
into place.
Figure 1-4 Installing a Pentium II Processor

1-12 User’s Guide
1.6.2 Removing a Pentium II Processor
Observe the ESD precautions when installing
or removing a system component.
Follow these steps to remove the Pentium II processor:
1. Press the latches on both sides of the processor to release it from
the retention mechanism. You will hear a click sound once the
latch is released.
2. Pull the processor to totally detach it from the CPU connector.
Figure 1-5 Removing a Pentium II Processor

System Board 1-13
1.7 Memory Configurations
The system board comes with six 72-pin SIMM sockets that allows you
to expand memory to a maximum of 384 MB. The SIMM sockets
support 5V FPM/EDO DRAMs with 4-, 8-, 16-, 32-, and 64-MB
capacities and 60ns (or less) access time. The FPM DRAM is the
standard DRAM type. The EDO DRAM is actually very similar to FPM.
The only difference is that EDO DRAM holds the memory data valid
until the next memory access cycle, that is similar to pipeline effect
and therefore reduces one clock state, while traditional FPM tri-states
the memory output data to start the pre-charge activity.
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 SIMM1
and SIMM2 or SIMM3 and SIMM4. 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 SIMM1 before socket SIMM2, or socket SIMM3
before socket SIMM4.
•Always remove SIMMs from the innermost socket first. For
example, socket SIMM4 before socket SIMM3, or socket SIMM2
before socket SIMM1.

1-14 User’s Guide
Table 1-3 Memory Configurations
Bank 1 Bank 2 Bank 3 Total
SIMM1 SIMM2 SIMM3 SIMM4 SIMM5 SIMM6 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 1-15
Table 1-3 Memory Configurations (continued)
Bank 1 Bank 2 Bank 3 Total
SIMM1 SIMM2 SIMM3 SIMM4 SIMM5 SIMM6 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

1-16 User’s Guide
1.7.2 Installing a SIMM
Observe the ESD precautions when installing
or removing a system component.
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 1-17
1.7.3 Removing a SIMM
Observe the ESD precautions when installing
or removing a system component.
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

1-18 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
HDD Channel 1 Hard disk 0 Hard disk 1
HDD Channel 2 Hard disk 2 Hard disk 3/
IDE CD-ROM drive

System Board 1-19
1.9 Add-on Card Installation
Observe the ESD precautions when installing
or removing a system component.
1.9.1 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.
4. Locate the ISA slots on the system board and install the non-PnP
ISA cards.
5. Turn on the system.
6. 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.
7. Turn off the system.

1-20 User’s Guide
8. Locate the ISA slots on the system board and install the PnP ISA
cards.
Figure 1-8 Installing an ISA Card
9. Turn on the system. This time PnP BIOS automatically
configures the PnP ISA cards with the remaining free IRQs.
1.9.2 Installing a PCI Card
Before you proceed, make sure that you have
already installed the non-PnP ISA cards and
have assigned the appropriate IRQs to the
cards.
Follow these steps to install a PCI card:
1. Turn off the system.
2. Locate the PCI slot on the system board.
3. Align the golden fingers of the PCI card to the slot.
4. Press the PCI card until it is properly seated.