Intel AI5VG User manual

AI5VG
Pentium VP3 Baby AT Motherboard
User’s Manual
Version 2.0

Contents
AI5VG Pentium VP3 Baby AT Motherboard User’s Manual i
Contents
Chapter 1 Introduction....................................................1
Chapter 2 Specifications..................................................2
Chapter 3 Hardware Description ...................................4
3.1 Processor and CPU Voltage ..............................................6
3.2 L2 Cache Memory.............................................................6
3.3 Main Memory....................................................................6
3.4 BIOS..................................................................................8
3.5 Onboard PCI EIDE............................................................9
3.6 Onboard Multi-I/O.............................................................9
3.7 Onboard CPU Temperature Sensor...................................9
3.8 I/O Port Address Map......................................................10
3.9 DMA Channels................................................................10
3.10 Interrupt Request Lines (IRQ).......................................11
3.11 Accelerated Graphics Port (AGP) Slot..........................11
Chapter 4 Hardware Settings........................................12
4.1 SW1(1-8): CPU Frequency Selector ...............................14
4.2 SW2(1-4): CPU Voltage Selector ...................................16
4.3 JP5: Clear CMOS Selection ............................................18
Chapter 5 Installation....................................................19
5.1 I/O Connectors.................................................................21
5.2 J3: AT Power Supply Connector.....................................21
5.3 J2: ATX Power Supply Connector..................................22
5.4 J1, J4: AT Keyboard and PS/2 Mouse Connectors.........22
5.5 J7, J6: Serial Ports...........................................................23
5.6 J8: Floppy Drive Connector ............................................23
5.7 J9, J11: EIDE Connectors................................................24
5.8 J10: Parallel Port Connector............................................25
5.9 J15: IrDA Connector .......................................................25
5.10 J5: USB Connector........................................................25
5.11 J13 Wake on LAN Connector .......................................26
5.12 J14: CPU Fan Power Connector....................................26
5.13 J20 Front Bezel Connector............................................26

Contents
ii AI5VG Pentium VP3 Baby AT Motherboard User’s Manual
Chapter 6 BIOS Configuration.....................................29
6.1 BIOS Introduction ...........................................................32
6.2 BIOS Setup......................................................................32
6.3 Standard CMOS Setup.....................................................34
6.4 BIOS Features Setup .......................................................37
6.5 Chipset Features Setup....................................................40
6.6 Power Management Setup...............................................42
6.7 PNP/PCI Configuration...................................................45
6.8 Load BIOS Defaults ........................................................48
6.9 Load Setup Defaults ........................................................48
6.10 Integrated Peripherals....................................................49
6.11 Supervisor / User Password...........................................51
6.12 IDE HDD Auto Detection .............................................52
6.13 HDD Low Level Format................................................52
6.14 Save & Exit Setup..........................................................53
6.15 Exit Without Saving......................................................53

Chapter 1 Introduction
AI5VG Pentium VP3 Baby AT Motherboard User’s Manual 1
Chapter 1 Introduction
This manual is designed to give you information on the AI5VG
Motherboard. It is divided into the following six sections:
•
••
•
Introduction
•
••
•
Specifications
•
••
•
Hardware Description
•
••
•
Hardware Settings
•
••
•
Installation
•
••
•
BIOS Configuration
Checklist
Please check that your package is complete and contains the items below.
If you discover damaged or missing items, please contact your dealer.

The AI5VG Motherboard

This user’s manual

1 IDE ribbon cable

1 floppy ribbon cable

2 serial ribbon cables*

1 parallel ribbon cable

1 PS/2 cable

1 diskette containing Bus Master IDE drivers and and flash
utility

1 diskette containing VxD drivers
* Use the two serial ribbon cables provided to avoid compatibility
problems.

Chapter 2 Specifications
2 AI5VG Pentium VP3 Baby AT Motherboard User’s Manual
Chapter 2 Specifications
Based on VIA’s VP3AT chipset, the AI5VG is a Baby AT Pentium
motherboard that supports all the features to make a Microsoft PC’97
compliant PCI/ISA system. This high performance model comes with
an Accelerated Graphics Port (AGP) slot, power management
functionalitythat is compliant with ACPI (Advanced Configuration and
Power Interface) and legacyAPM requirements. In addition to standard
PIO and DMA mode operation, the AI5VG features Ultra DMA/33 for
improved disk I/O throughput. The main features of this motherboard
are listed as follows:
Main Processor
Intel Pentium 90/100/120/133/150/166/200
Intel Pentium MMX (P55C) 90/100/120/133/150/166/200/233
Cyrix 6x86/6x86L P150+/P166+/P200+
Cyrix 6x86MX PR166/PR200/PR233/PR266
AMD K5 PR100/PR133/PR166
AMD K6 166/200/233
L2 Cache
512KB Pipelined Burst Synchronous SRAM onboard
Main Memory
Four 72-pin SIMM sockets and two 168-pin DIMM sockets
Memory Type
SIMMs: FPM (Fast Page Mode) or EDO (Extended Data Out)
SIMM Size: 4MB 8MB 16MB 32MB 64MB
DIMMs: EDO DRAM or SDRAM (Synchronous DRAM)
DIMM Size: 8MB 16MB 32MB 64MB 128MB
Chipset
VIA’s VP3AT chipset with built-in PCI EIDE
Onboard I/O
Winbond W83877 for two serial, one parallel, one floppy drive
interface and IrDA support

Chapter 2 Specifications
AI5VG Pentium VP3 Baby AT Motherboard User’s Manual 3
Onboard Bus Mastering EIDE
Two EIDE interfaces for up to four devices, support PIO Mode 3/4
or Ultra DMA/33 IDE Hard Disk and ATAPI CD-ROM.
BIOS
Licensed BIOS with additional features:
• FLASH EEPROM (128KB) for BIOS update
• ISA Plug and Play (PnP) extension
• Power management
CPU Temperature Sensor
The AD22105 ICon the motherboard is a temperature sensor for the
CPU. When the CPU temperature exceeds threshold value, the CPU
slows down automatically to allow it to cool down to a safe level.
Windows 95 Shut-Down
This allows the PC to power off via Windows 95 operating system.
(This feature requires ATX power supply.)
AGP Support (Accelerated Graphics Port)
The AI5VG motherboard comeswithan AGP slot for an AGP VGA
card that supports 133MHz 2X mode for AD and SBA signaling.
PC97 Compliance
The AI5VG implements BIOS and hardware designs that meet
PC97 standards and is fully compatible with all Windows operating
systems.
Expansion Slots
Four 32-bit PCI slots
Two 16-bit ISA slots
One AGP slot
Form Factor
Baby AT, 9”x8.6” (23cm x 22cm)

Chapter 3 Hardware Description
4 AI5VG Pentium VP3 Baby AT Motherboard User’s Manual
Chapter 3 Hardware Description
This chapter briefly describes each of the major features of the AI5VG
motherboard. The layout of the board is shown in Figure 1 which shows
the locations of the key components. The topics covered in this chapter
are as follows:
3.1 Processor and CPU Voltage.......................................................6
3.2 L2 Cache Memory.....................................................................6
3.3 Main Memory............................................................................6
3.4 BIOS..........................................................................................8
3.5 Onboard PCI EIDE....................................................................9
3.6 Onboard Multi-I/O.....................................................................9
3.7 Onboard CPU Temperature Sensor ...........................................9
3.8 I/O Port Address Map..............................................................10
3.9 DMA Channels........................................................................10
3.10 Interrupt Request Lines (IRQ)...............................................11
3.11 Accelerated Graphics Port (AGP) Slot..................................11

Chapter 3 Hardware Description
AI5VG Pentium VP3 Baby AT Motherboard User’s Manual 5
Figure 1: Layout of the AI5VG Motherboard

Chapter 3 Hardware Description
6 AI5VG Pentium VP3 Baby AT Motherboard User’s Manual
3.1 Processor and CPU Voltage
The AI5VG is designed to take a Pentium Processor with a bus speed of
60 and 66 MHz. The internal clock of the CPU can be multiples of 1.5, 2,
2.5, 3, 3.5, 4 and 4.5 of the bus clock, the CPU frequency can be 90 to
300MHz.
The onboard CPU voltage regulator provides support for CPUs Vcore
which require voltage other than 3.3V such as 2.8V, and/or power
consumption higher than 10 watts.
3.2 L2 Cache Memory
The AI5VG supports 512KB P.B. (Pipelined Burst) Synchronous Cache.
The P.B. Synchronous Cache boosts the system’s performance, 10%
higher than regular Asynchronous Cache.
3.3 Main Memory
The AI5VG motherboard supports four 72-pin SIMMs and two 168-pin
DIMMs (Dual In-line Memory Module) sockets. The DRAMs for the
SIMM socketscan be 4MB, 8MB, 16MB, 32MB, and 64MB in EDO and
FPM types. DIMM modules can be 8MB, 16MB, 32MB, 64MB and
128MB in EDO DRAM or SDRAM type.
The following should be noted when populating the SIMM/DIMM
sockets:
1. SIMM1/SIMM2, SIMM3/SIMM4 or DIMM1, DIMM2 bank can be
populated first.
2. Each bank**should consist of the same size SIMMs.
3. Each bank should consist of the same type SIMMs. For example,
SIMM1 and SIMM2 are both be EDO or Page Mode.
** Each bank consists of two SIMM slots or one DIMM slot. For
example, SIMM 1 and SIMM 2 are considered as one bank and
DIMM 1 as another one.